Page 616 - Atlas of Histology with Functional Correlations

1. The lacteals of the small intestine are located in the:

A. submucosa.

B. lamina propria of the villi.

C. duodenal glands.

D. intestinal glands.

E. absorptive cells.

2. The main function of the large intestine is to:

A. continue enzymatic digestion of undigested material.

B. produce enzymes for further digestion.

C. neutralize undigested material with mucus secretion.

D. absorb water and electrolytes from undigested material.

E. finish absorbing nutrients that were started in the small intestine.

3. The large intestine is characterized by the following:

A. Well-developed plicae circulares

B. Numerous submucosal glands

C. Deep intestinal glands and predominance of goblet cells

D. Numerous Paneth cells in intestinal glands

E. Numerous villi

4. What characterizes the muscularis externa of the large intestine?

A. Three longitudinal muscle strips called taeniae coli

B. Lack of inner circular smooth muscle layer

C. Three layers of smooth muscles

D. Skeletal muscle layer

E. Presence of both smooth and skeletal muscle fibers

5. To increase contact with digested material, individual villi show

movement. This is due to:

A. contraction of the inner layer of muscularis externa.

B. contraction of the outer layer of muscularis externa.

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