trointestinal Which of the following statements accurately defines alimentary ca
ID: 3482387 • Letter: T
Question
trointestinal Which of the following statements accurately defines alimentary canal (gas tract)? 1. A) Exocrine and endocrine gland that sits posterior and inferior to the stomach; its exocrine functions are digestive whereas its endocrine functions are metabolic Organ located on the right side of the abdominal cavity consisting of four lobes An oval articular surface B) C) passagee digested; it includes the pharynx, esophagus, stomach, and intestines 2. Which of the following statements accurately defines gastroesophageal sphincter? A) B) C) D) Accessory organs around the mouth that secrete saliva, which contains substances such as water, salivary amylase, antibodies, and lysozyme Ring of smooth muscle located between the pylorus of the stomach and the duodenum that controls passage of chyme into the small intestine Produces bile before it enters circulation in body Ring of smooth muscle located at the inferior end of the esophagus that prevents contents of the stomach from regurgitating up into the esophagus for digestion; detox ifies, processes, and eliminates toxins in blood 3. Which of the following statements accurately defines pyloric sphincter? A) B) C) D) Accessory organs around the mouth that secrete saliva, which contains substances such as water, salivary amylase, antibodies, and lysozyme Ring of smooth muscle located between the pylorus of the stomach and the duodenum that controls passage of chyme into the small intestine Produces bile for digestion; detoxifies, processes, and eliminates toxins in blood before it enters circulation in body Ring of smooth muscle located at the inferior end of the esophagus that prevents contents of the stomach from regurgitating up into the esophagus Which of the following statements accurately defines liver? A) 4. B) C) D) Detoxifies, processes, and eliminates toxins in blood before it enters the general circulation in the body Organ located on the right side of the abdominal cavity consisting of four lobes Produces bile for digestion All of the aboveExplanation / Answer
1.
The alimentary canal or gastrointestinal tract extends from mouth to anus. Starting from mouth, the alimentary canal contains pharynx, esophagus, stomach, duodenum, small intestine and large intestines and ends with anus. The major function of alimentary canal is to digest and absorb the food and nutrients. Option D is correct.
2.
Gastroesophageal sphincter is also known as cardiac sphincter. It is located at the lower end of esophagus and is composed of ring of smooth muscle. The gastroesophageal sphincter function is to prevent the back flow or regurgitation of stomach contents through esophagus. Option D is correct.
3.
Pyloric sphincter is also made up of ring of smooth muscle. it is located between pylorus of stomach and duodenum. It is involved in regulation of passage of chyme from stomach into small intestines. Option B is correct.
4.
Liver is an accessory gland of digestive system and is largest gland in the body. It is situated at right side of abdominal cavity and consists of 4 lobes. The major functions of liver include secretion of bile for digestion and emulsification of fats, detoxification and elimination of toxins from blood before they enter the genral circulation. Option D is correct.
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