Digestion of Food-1:
1. The stomach is divided into how many major portions?
A. One
B. Two
C. Three
D. Four
Answer: D
2. Which of the following is incorrect regarding the shapes of the three portions of the small intestine?
A. Duodenum-C shape
B. Duodenum-J shape
C. Ileum-highly coiled
D. Jejunum-long coiled
Answer: B
Explanation: Small intestine is distinguishable into three regions, a ‘C’ shaped duodenum, a long coiled middle portion jejunum, and highly coiled ileum.
3. Vermiform appendix arises from which part of the large intestine?
A. Transverse colon
B. Sigmoid colon
C. Caecum
D. Rectum
Answer: C
4. Innermost layer mucosa forms rugae in the stomach.
A. True
B. False
Answer: A
Explanation: The mucosal layer of the alimentary forms irregular folds or rugae in the stomach and small finger-like projections-villi in the small intestine. The cells lining the villi produce numerous microscopic projections called microvilli giving a brush bordered appearance.
5. Which layer of the alimentary canal forms gastric glands?
A. Sub-mucosa
B. Mucosa
C. Muscularis
D. Serosa
Answer: B
Explanation: The mucosa layer of the alimentary canal forms gastric glands in the stomach and crypts in between the bases of villi in the intestine which are also known as Crypts of Lieberkuhn.
6. Which of the following is not a digestive gland?
A. Salivary gland
B. Testis
C. Liver
D. Pancreas
Answer: B
Explanation: The digestive glands associated with the alimentary canal include the salivary glands, the liver, and the pancreas. The testis is not a digestive gland.
7. Saliva is produced by how many salivary glands?
A. Three
B. Four
C. Five
D. Six
Answer: D
Explanation: Saliva is mainly produced by three pairs of salivary glands which are the parotids, the sub-maxillary or sub-mandibular, and the sub-lingual.
8. What is the weight of the largest gland of the human body?
A. 1.2-1.3 kg
B. 1.3-1.4 kg
C. 1.0-1.5 kg
D. 1.2-1.5 kg
Answer: D
