Report The Digestive System of Frogs Essay Example For Students

Report: The Digestive System of Frogs Essay THE DIGESTIVE SYSTEM OF THE FROG The digestive organs are usually divided into two main groups. The gastrointestinal tract or the alimentary tract and The accesory organs. The gastrointestinal tract (alimentary tract) -is a continuous tube running from the mouth to anus. This compose of mouth, parynx, esophagus, stomach, small intestine and large intestine. The accesory organs -is a group of organs consist of organs such as the teeth, tongue, liver, gallbladder and pancreas. *Place the preserved frog in a dissecting pan. open its mouth and study the roof and the floor of the mouth. may be necessary to cut through the Joint between the upper and lower Jaw in order to expose the buccal cavity. *Identify the stuctures below: Maxillary teeth these are rows of small teeth along margin of the upper Jaw. Sulcus marginalis this is a pair of groove on the inner side of the maxillary teeth that receives the lower Jaw when the mouth is closed. Median subrostral fossa it is a prominent depres sion of the sulcus marginalis at the anterior tip of the upper Jaw. Lateral subrostal fossa it is a pair of depression of the sulcus marginalis lateral to he pulvinars. Pulvinar rostrale it is a pair of low elevations on each side of the median subrostal fossa. Internal / posterior nares or choanae it is a pair of slit-like openings above the eyeballs leading to the external nares. Eyeball (orbital) prominence these are two large rounded bulges of the eyeball. Vomerine teeth these are fine teeth projecting from the vomers in between the internal nares. Opening of Eustachian tube it is a pair of slit-like openings found medial to the angles of the Jaw. the eustachian tube leads to the cavity of the middle ear. Prelingual fossa these are two shallow depression on each side of tuberculum prelinguale. Tuberculum prelinguale it is a prominent median elevation at the tip of the lower Jaw. this fits into the median subrostal fossa when the mouth is closed. Tongue it is a forked muscular organ attached to the anterior tip of the lower Jaw. Opening of vocal sac this is a pair of slit-like opening on the floor of the mouth close to the angle of the Jaw; found only on male frogs. Opening of esophagus it is a large transverse slit, posterior to the laryngeal prominence. Laryngeal prominence ircular elevation anterior to the esophageal opening. Glottis it is a short vertical like opening at the center of the laryngeal prominence. *Position the frog on the dissecting pan with the ventral side up. *Pin the limbs to the dissecting pan . with the use of a forcep, grasp the posterior end of the rectus abdominis and cut anteriorly the ventral wall. the cut made should be along the sides of the linea alba so as not to cut the anterior abdominal vein, which is directly underneath the linea alba. Lift the muscles carefully before cutting so as not to cut the underlying organs. hen cut transversely the rectus abdominis at the level af the abdominal wall near the bases of the thigh. *Identify the rest of the internal organs of the digestive system. Pharynx it is the posterior portion of the buccal cavity which opens into the esophagus. Esophagus it is a very short tube that connects the pharynx to the stomach. Stomach a large whitish organ with either U or J shaped enlarged portion of the Digestive tube. ts anterior or cardiac end is smaller than its posterior or pyloric end; it curves more on the outer side (the lesser curvature); this rgan is suspended from the dorsal body wall by a mesentery known as the mesogaster. Pylorus this is a constriction at the posterior end of the stomach. Spleen this is a dark reed organ located on the left lateral side of the stomach. it is considered part of the lymphatic system and functions in phagocytosis, production of lymphocytes and blood storage. Gallbladder this is a small greenish sac located at the ventral part of the median lobe of liver. his stores bile secreted by the liver. Small intestine this is a slender and longest portion of the tube which is irregularly oiled;anterior portion is the duodenum which is wider but shorter and the more posterior, narrower and longer coiled division of the small intestine is the ileum; the small intestine is suspended from the dorsal body wall by the mesenterium. Large intestine this is a short dilated tube at the terminal end of ileum. it is suspended by the mesorectum, where a rounded reddish spleen is also suspended. .u6741c6bc3e52a3f149ea6746ad996b8c , .u6741c6bc3e52a3f149ea6746ad996b8c .postImageUrl , .u6741c6bc3e52a3f149ea6746ad996b8c .centered-text-area { min-height: 80px; position: relative; } .u6741c6bc3e52a3f149ea6746ad996b8c , .u6741c6bc3e52a3f149ea6746ad996b8c:hover , .u6741c6bc3e52a3f149ea6746ad996b8c:visited , .u6741c6bc3e52a3f149ea6746ad996b8c:active { border:0!important; } .u6741c6bc3e52a3f149ea6746ad996b8c .clearfix:after { content: ""; display: table; clear: both; } .u6741c6bc3e52a3f149ea6746ad996b8c { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u6741c6bc3e52a3f149ea6746ad996b8c:active , .u6741c6bc3e52a3f149ea6746ad996b8c:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u6741c6bc3e52a3f149ea6746ad996b8c .centered-text-area { width: 100%; position: relative ; } .u6741c6bc3e52a3f149ea6746ad996b8c .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u6741c6bc3e52a3f149ea6746ad996b8c .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u6741c6bc3e52a3f149ea6746ad996b8c .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u6741c6bc3e52a3f149ea6746ad996b8c:hover .ctaButton { background-color: #34495E!important; } .u6741c6bc3e52a3f149ea6746ad996b8c .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u6741c6bc3e52a3f149ea6746ad996b8c .u6741c6bc3e52a3f149ea6746ad996b8c-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u6741c6bc3e52a3f149ea6746ad996b8c:after { content: ""; display: block; clear: both; } READ: Alfred Stieglitz EssayCloaca this is the posterior dilated end of the large intestine located within the pelvic girdle. different eurogenital organs (i. e. urinary bladder, mesonephric ducts and ovisac) also pen to this area. Anus it is a small opening at the posterior end of the cloaca. DIGESTIVE GLANDS Liver this is a large reddish brown organ on the anterior portion of the pleuro- peritoneal cavity; this large organ that partly covers the stomach; this is divided into left, median and right lobes which are suspended from the body wall by a ventral ligament. at its ventral side of the median lobe is the gallbladder. he bile which is secreted by the liver and stored by into the gallbladder by way of two fused ducts, the hepatic ducts coming from the left and right lobes of the liver. A cystic duct is a tiny duct connected to the neck of the gallbladder; the large duct formed by the cystic hepatic and pancreatic duct is the common bile duct-this is surrounded by the tissues of the pancreas and this duct enters the doudenum, emptying its content on this part of the digestive tube. Pancreas this is a small elongated and irregularly shaped gland located between the stomach and duodenum;ba pancreatic Juice to the duodenum. THE HUMAN DIGESTIVE SYSTEM What is digestion? -digestion is the process of pondering food using our digestive system. digestion takes place within a tube called digestive canal which starts with the mouth and ends with the anus. digestion reduces food into small soluble molecules that can be absorbed by the lining of the digestive canal. the cooperative effor of the different parts of the body is essential for the digestion food. The digestive process: 1 . ) Food received in the mouth is chewed by the teeth and softened by a digestive enzyme in the saliva. 2. ) The chewed food is conveyed by the tongue into the pharynx thorastic cavity. he peristaltic movements of the esophagus walls pushes the food own into the stomach. 4. ) The bolus of food is churned and mixed in the stomach where digestive Juices and enzymes act on them. normally, the stomach empties in two to six hours. by this time the bolus food has become semiliquid food mass called acid chyme. 5. ) Acid chymes leaves in the stomach and enters the small intestine in small squirts only, ensuring a slow thorough rate of digestion. the first 25 cm, of the small intestine is called the duodenum. two glands, the liver and the pancreas, sends secretions to the duodenum. he liver makes bile which is stored in the gallbladder nd sent by way of the bile duct to the duodenum. the bile salts emulsifies fats and breaks them into fat droplets for easy absorption. the pancreas send pancreatic Juice into the duodenum by way of the pancreatic duct. The pancreatic enzymes, amilase trypsin, and lipase digest starch, protien and fat droplets, respectively. the digestive enzymes in the walls of the small intestine completes the digestive process. 6. ) Food that cannot be digested in the small intestine passes on into the large intestine down to the rectum and out through the anus as faeces.

Panasync Essay Example For Students

Panasync Essay Vinny Testaverde ne Vincent Frank Testaverde, etais ne le 13 Novembre 1963. Il est mainteant 65 et il pese 235 lbs et jou qaurt arriere pout les Jets de New York. Il etais ne au Elmont et vie ici maintent. Quand Vinny etais enfants il voulais joue au football mais carson pere etais un pilote ils devis demanager beacoup. Vinny alais au Fork Union Military Academy pout quel ques anne. Apres ce la il et alle au Miami. En Miami Vinny a gange le Heisman Trophy, All American Selection, et Davey Obrian Award et a terminer lecole avec le plus de pass dans lishtoire de lecole avec 6, 058 verges. Dans son dernier anne il a Commance evec un record de 11 victories et 0 defets. En 1987 il etais chois Premierment dans la draft par Tampa Bay Buccaneers. Dans so premier anne dans le LNF il a eu le record pour le plus de verges dans un juex avec 369, ce record stais plus tard batu par Dru Bledso. En 1987 Vinny a aussi gange All Rookie Selection. En 1988 Il a terminer lanne avec 4,079 verges total. Il A de nouveau gage le record pour le plus de verges dans un jeux avec 469 et Jusqo date ce reste son record personnele. En 1990 Vinny avais le plus de Verges moyen par pass avevc 9.8 verges. Il a aussi eu un Touche en courant48 verges, ce la et encors un record pour lequipe. En 1991 Il ce blesseDeux fois le premiere au aorty el le deuxieme au doit. Words/ Pages : 262 / 24

How a Good Sample Essay Can Make a Difficult Task Very Simple

How a Good Sample Essay Can Make a Difficult Task Very SimpleSample essays are those that we take for granted until we have to rewrite them or even rewrite them multiple times. Many of us have been in a situation where we have had to write an essay, but the first time around the idea of doing so was an intimidating one. In this article I will discuss how a good sample essay can make a difficult task much easier.Some sample essays that can be very simple are educational, and others are professional. And while it is true that there are many essays that fall into the latter category, even the most basic and easy of sample essays is still a bit intimidating.The fact is that you can write a very simple example essay about virtually anything. Not only can you write a sample essay from scratch, but you can write one from a well-written book or article.Consider the following example essay: 'Stories I read today'. In this example the writer starts by taking a look at some books they may have read recently. They then write a paragraph describing their impressions about what was written in the story.Next, they create a basic outline for the piece that they want to complete. This usually involves finding a quote from a writer they like, and writing a short story about the quote and how the writer used it.Finally, they go back to the stories they have read and write a paragraph to sum up the main theme of the story. By using a quote from the main concept of the story, it will help establish the reader's interest.These are not just any examples; they are very simple examples written by some of the best writers in the world. They are also very effective examples for writing samples because they provide the writer with an excellent outline for the piece.Now, by doing this they can leave out any personal details they feel might distract the reader. Remember, this is not a marketing campaign; this is an essay you are writing for a college exam. So even if your essay is extremely simple, make sure you leave enough information for the reader to consider.

6 Disappeared LinkedIn® Partner Applications and What to Do About Them †Part V WordPress (and RSS Feeds)

6 Disappeared LinkedIn ® Partner Applications and What to Do About Them – Part V WordPress (and RSS Feeds) The WordPress and BlogLink applications on LinkedIn used to be a reliable way to send weekly blog posts to your LinkedIn profile. All a blogger had to do was download the application and associate the blog’s RSS feed (essentially the link to your blog posts) to LinkedIn. No longer is this convenient feature available. Up until a week ago, I would have suggested a fix that entails requesting your RSS feed to be sent out automatically to your favorite LinkedIn groups, or perhaps starting a LinkedIn group so that you can send your feed to that group. Not anymore. LinkedIn has announced that as of March 15, 2013, users may no longer syndicate RSS feeds to groups through LinkedIn. The pros and cons of this move by LinkedIn have been debated. On the positive side, the elimination of RSS feeds to groups means less potential for spamming. A real person has to go in and post an article, potentially stemming the increasingly overwhelming flow of posts to LinkedIn groups. On the other hand, much of this automated content provides valuable information to group members and spurs conversation and debate. Will the richness of group conversations be diminished without the convenience of automated posting? Time will tell †¦ In the meantime, the question remains: How can you send your value-rich content to your LinkedIn groups? One place to look is the LinkedIn Help topic, Anyone have a workaround for the elimination of RSS feeds in groups? Here are some ideas: 1. Post discussions manually to your LinkedIn groups. Manual posting of articles is a technique I have been utilizing all along, and I believe it provides value to my groups and provides me with visibility. I don’t just post the link to a useful article – I post the entire article so that people don’t have to work too hard to read the content. If you post an article to a group, it helps to ask a question to spur discussion, rather than simply post the article. By simply sticking an article on the discussion page, you risk appearing â€Å"spammy† and are less likely to generate worthwhile conversations about your topic. 2. Use HootSuite to post blog entries to your Activity Updates. The HootSuite option requires establishing a HootSuite account if you don’t have one already. After logging in to HootSuite, hover over the launch bar on the left side of your account. Click on Settings RSS/Atom: Click the + sign to add a new feed. You might need to upgrade to a paid account ($5.99/month) to use this feature. Paste your feed URL in the field provided. Then select the social sites you would like the feed to post to. Edit any other preferred options and Save Feed. 3. Post manually to Activity Updates. A simple, free way to share blog articles is to post the link individually to your Activity Updates. If you blog once/week this solution might be the best one for you. You can add links from either your LinkedIn home page or the Activity bar on your profile. You then have the option of sharing the update on LinkedIn and Twitter. Home page image: Profile Activity bar image: Any blog article links you add will appear on your profile in your Activity section (the top section of the profile). Your updates will also appear in LinkedIn Signal, which is a running account of all LinkedIn updates that can be found under the News menu. Here’s a sample: 4. Post your blog under your Publications section. Add the Publications section to your profile if you dont have it already. Then post a live URL that links directly to your blog for anyone who wants to take a look! Do you have more ideas of how to replace the WordPress application or the group RSS feeds? Please share below! If you want more tips on the effective use of LinkedIn, you might like How to Write a KILLER LinkedIn Profile, the #1 best-selling e-book by Brenda Bernstein! Category:Archived ArticlesBy Brenda BernsteinFebruary 25, 2013

Thesis Statement

Thesis Statement Almost all of us even if we dont do it consciously look early in an essay for a one- or two-sentence condensation of the argument or analysis that is to follow. We refer to that condensation as a thesis statement. What Is a Thesis Statement A  thesis  is a specific statement that is usually placed in the introductory part of an essay,  research paper, dissertation etc., and which is explained in subsequent body paragraphs. A thesis of an article, report or other scientific work is a set of certain statements that are logically connected to each other. Therefore, the main task of the thesis statement is to discover and summarize the content of a larger work. There are several different types of papers students are required to write in higher education. Some essays and papers are meant to provide an overview of a topic (like a research paper), while others make an argument – a  persuasive essay – to demonstrate to their professors or academic instructors, they have a solid comprehension of a subject, textbook, etc., and that they can thoroughly analyze its content and are developing both their writing and critical-thinking skills. All persuasive essays of this sort – that is, those that argue a point – must contain a thesis statement. They are first declared in a persuasive essay’s introduction paragraph when the students directly state their point of view on a subject. In just one sentence, the thesis statement is the student’s pithy summary of the argument they are going to make in the rest of the paper; in many ways, it’s the main thought, theme, or angle of the essay. HOW TO WRITE A THESIS STATEMENT As a side note, whenever a student is to write a persuasive essay, which should include a thesis statement, they should be cognizant that they must defend their argument – therefore, their paper’s thesis statement – with evidence in the subsequent paragraphs. Also, even though thesis statements are declared early in the essay, in the introductory paragraph, one does not result from a student’s initial response to a subject or reading assignment; instead they a result of taking an attitude toward a specific, narrowed subject, then finding evidence – articles, both journalistic and academic, previously published essays, encyclopedias and online sources – to support this argument. In essence, the thesis statement identifies the topic of a text along, or an issue, subject, along with the claim the student is making about it. Thesis Statement Examples To better convey the power and purpose of the thesis statement, it may serve the student best to apply the following scenario to an academic setting.  If students wanted to convince their parents it would be best if their parents bought them a new computer or cell phone to use at college, that students would want to put up a pretty solid argument for doing so, correct? The student with this motivation would first make their claim (in essence a thesis statement, which they would articulate early on in their argument), and then provide reasons why this argument is valid and should be accepted and followed – because they really want that cell phone or computer. If the student were writing an essay to persuade their parents of this claim, their thesis statement may be: It is important for me to have a computer/cell phone to use at college. Essentially, this is a thesis statement; however, it is NOT an academic argument (unless a professor allows the student to demonstrate their knowledge of how to write a basic persuasive essay by choosing a general, non-academic topic). For example, an appropriate academic thesis statement might be: â€Å"Edgar Allen Poe’s ‘The Tell-Tale Heart’ is told by an unreliable narrator, which then forces the reader to make their own conclusion about the story’s narrative rather than believing the character telling the story – which is usually the case in fiction†. Once again, the thesis statement asserts the main point of the paper and clarifies the scope of the topic that it will address. A thesis statement is most effective when expressed or declared in the introductory paragraph in a confident, assertive tone and stance; one should leave out qualifiers like â€Å"I think† or â€Å"might† which will certainly dilute its effectiveness, thereby weakening the entire paper, offering a weaker argument – all while probably earning the student a lower score or grade on the assignment. The student will most likely be assigned a persuasive essay – not usually having the option of writing a different kind of essay – and will be forced to follow the standard format accepted in higher education. And, more often than not, the student will be assigned a certain text, series of texts, or type of text to analyze and write about. It could be a novel, play, chapter in a text, in a literature class, a speech by a famous politician in a history or government class, or a piece of art in an anthropology class. If you need assistance with thesis statement writing, feel free to contact our friendly support team or place an order and we will gladly help you.

Reading response Essay Example | Topics and Well Written Essays - 250 words - 40

Reading response - Essay Example "Is a plongeurs work really necessary... He earns his bread in the sweat of his brow, but it does not follow that he is doings anything useful." This quote could be found in Chapter XXII when the author is just about to give up working at Auberge, with promise of working prospects in London. In this quote something is being said about poverty: That there are people who would willingly accept their plight because it is necessary. The argument is that it must be done, otherwise something in society will fail. The author, for example, mentioned that there were so many men with university degrees in Paris working as dishwashers and seemed to choose the because it is necessary. The offshoot was that they were trapped into poverty. For all his seeming practicality and sense, why would the author risk going to London on the strength of a friends recommendation? His friend Boris has already led him into deeper mire than he was in previously, so why trust his life on

Wage Inequality in the Airline Industry Essay Example | Topics and Well Written Essays - 1250 words

Wage Inequality in the Airline Industry - Essay Example For example, in the trucking industry, after deregulation union wages fell, whereas nonunion wages did not change significantly. This contrasts to the situation in the airline industry, where the wages of nonunion workers after deregulation have "eroded" (Bratsberg et al, 2001). The entry of new "non-union, low-wage" companies into the market forced existing companies to "extract wage concessions" from their employees, if they wanted to remain competitive (Deller, 2002). In this way competition with other private airline companies and governmental airline suppliers, forced wages downward to contain costs increases. Still, because of high industry unionization (Bratsberg et al, 2001), the unions retained considerable bargaining power, hence they were more effective in preserving high wages, and the union wage advantage increased during the years after the deregulation. Literature review has not identified one single method for determining wage inequality for the airline industry. Instead, various research papers investigate into different aspects that explain wage levels and estimate wage inequality in the airline industry by making comparisons between different worker/employee groups in the industry. One such paper distinguishes between wage levels of union, and nonun... One such paper distinguishes between wage levels of union, and nonunion workers, by assessing "the effect of deregulation on union power" (Bratsberg et al, 2001). Eventually, union power influences the wage levels of similar categories of workers who differ in their employment relations (union versus nonunion workers). According to the article, after deregulation, union wages have been less responsive to this change, whereas non-union wages have decreased significantly (Bratsberg et al, 2001) due to competitive pressure on costs. This has increased "the union premium" and has created greater wage inequality in the industry. Another research project undertaken by Michael Reich (2003) assesses wage policies at the San Francisco International Airport - SFO - for eighty employers in security areas or who perform security functions. The paper distinguishes between different level service workers, defining "security screeners, baggage handlers, fuel agents, customer service agents []" as the "lowest paid [non-managerial level] airline service workers". The research ascertains wage inequality based on company of employment, whereas lower wages are concentrated among employees of airline service contractors, contrasted by (in-house) airline companies. Additionally, Reich (2003) determines a benchmark minimum wage level (similar to the relative poverty line) of $10.00 per hour and comments that the introduction of new policies that decrease wage inequality have created significant decline in jobs turnover. This has created the positive effect of reduced pay inequality on service levels, worker motivation and pro ductivity (Reich, 2003). References: 1. Bratsberg, B. & Ragan J. (2001) "Changes in the Union Wage Premium