Histology of Duodenum

Q. Secretin acts on

1. gallbladder
2. pancreas
3. Crypts of Lieberkuhn
4. duodenum

Q.

What organ system is the skin in?

Q.

The diagram given below is a section of the small intestinal mucosa showing villi; identify the parts denoted by numerals.

1. 1. $\Rightarrow$ Lacteal, 2. $\Rightarrow$ Capillaries, 3. $\Rightarrow$ Crypts of Lieberkuhn, 4. $\Rightarrow$ Enterocytes.

2. 1. $\Rightarrow$ Capillaries, 2. $\Rightarrow$ Crypts of Lieberkuhn, 3. $\Rightarrow$ Enterocytes, 4.$\Rightarrow$ Lacteal.

3. 1. $\Rightarrow$ Enterocytes, 2. $\Rightarrow$ Lacteal, 3. $\Rightarrow$ Capillaries, 4. $\Rightarrow$ Crypts of Lieberkuhn
4. 1. $\Rightarrow$ Crypts of Lieberkuhn, 2. $\Rightarrow$ Enterocytes, 3. $\Rightarrow$ Lacteal, 4. $\Rightarrow$ Capillaries

Q. The intestinal villi are more numerous and larger in posterior part of small intestine because:

1. Digestion is faster in posterior part
2. blood supply is poorer in anterior part
3. Blood supply is poorer in posterior part
4. there is more digested food in posterior part

Q. Which of the following secretes Gastric Inhibitory Peptide (GIP)?

1. Oesophagus
2. Ileum
3. Duodenum
4. Stomach

Q. Duodenum has characteristic Brunner's glands which secrete two hormones called

1. Secretin, cholecystokinin
2. Prolactin, parathormone
3. Estradiol, progesterone
4. Kinase, estrogen

Q.

The diagram given below is a section of the small intestinal mucosa showing villi; identify the parts denoted by numerals.

1. 1. $\Rightarrow$ Lacteal, 2. $\Rightarrow$ Capillaries, 3. $\Rightarrow$ Crypts of Lieberkuhn, 4. $\Rightarrow$ Enterocytes.

2. 1. $\Rightarrow$ Capillaries, 2. $\Rightarrow$ Crypts of Lieberkuhn, 3. $\Rightarrow$ Enterocytes, 4.$\Rightarrow$ Lacteal.

3. 1. $\Rightarrow$ Enterocytes, 2. $\Rightarrow$ Lacteal, 3. $\Rightarrow$ Capillaries, 4. $\Rightarrow$ Crypts of Lieberkuhn
4. 1. $\Rightarrow$ Crypts of Lieberkuhn, 2. $\Rightarrow$ Enterocytes, 3. $\Rightarrow$ Lacteal, 4. $\Rightarrow$ Capillaries