Question

1. Fill in the blanks: Bile is produced by the _________ and stored and concentrated in the _______.

2. Folds of the small intestinal mucosa are known as:

a. microvilli

b. circular folds

c. intestinal crypts

d. villi

3. True/False: Mark the following statements as true (T) or false (F). If the statement is false, correct it so it becomes a true statement.

____ a. The peritoneal cavity is located between the visceral peritoneum and the mesentery.

____ b. The shortest segment of the small intestine is the duodenum.

____ c. Filiform papillae are keratinized projections from the tongue that help physically break down food.

____ d. Pancreatic islets are the exocrine portion of the pancreas.

____ e. The ileocecal valve regulates flow from the stomach to the duodenum.

____ f. The vermiform appendix is a blind-ended sac that contains lymphoid follicles.

Answer 1

1. BILE is produced by the liver and stored and concentrated in the gall bladder.

2. b) circular folds

• also called plicae circularis
• increases surface area of absorbtion
• has finger like projections called villi
• each villus is covered with micro villi

3)a) false. the peritoneal cavity is locted between the visceral peritoneum and the parietal peritoneum

b)true. it is the shortest and the widest segment of the small intestine. measuring 25cm long

c)false. filiform papillae are keratinised projections from the tongue that help to mechanically break down food

d)fasle. pancreatic islets are an endocrine portion of the pancreas

e)false. the ileocecal valve regulates flow from the ileum(small intestine) to the colon(large intestine)

f)true.vermiform appendix is a vestigial organ and doesnt have role in digestion today. it was believed to have a role in digestion in earlier times

hope the answers are clear to you. please provide feedback if it was helpful!