Which one of the following parts of the GI tract has the following characteristics:simple columnar epithelium, muscularis mucosa, Meissners plexus, two layers of smooth muscle in the tunica muscularis and Peyers patches of lymph nodules?

GASTRO INTESTINAL

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which one of the following parts of the GI tract has the following characteristics:simple columnar epithelium, muscularis mucosa, Meissner’s plexus, two layers of smooth muscle in the tunica muscularis and Peyer’s patches of lymph nodules?

A	duodenum
B	jejunum
C	ileum
D	colon

Explanation:

Detailed explanation-1: -Small intestinal mucosa is lined by a simple columnar epithelium which consists primarily of absorptive cells (enterocytes), with scattered goblet cells and occasional enteroendocrine cells.

Detailed explanation-2: -The correct arrangement of the wall of the GI tract tissues from the outermost to innermost layers is C. serosa, muscularis, submucosa, mucosa.

Detailed explanation-3: -The mucosa, or mucous membrane layer, is the innermost tunic of the wall. It lines the lumen of the digestive tract. The mucosa consists of epithelium, an underlying loose connective tissue layer called lamina propria, and a thin layer of smooth muscle called the muscularis mucosa.

Detailed explanation-4: -Along the lining of the stomach, small intestine, and colon, the epithelium is simple columnar.

There is 1 question to complete.

APPLIED RADIOLOGICAL ANATOMY

ANATOMY

GASTRO INTESTINAL