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  • Which layer of the ureter is primarily responsible for its contractile movements?Option: 1 Mucosa<div class=

Which layer of the ureter is primarily responsible for its contractile movements?

Option: 1

Mucosa


Option: 2

Submucosa


Option: 3

Muscularis


Option: 4

Adventitia


Answers (1)

best_answer

The ureter is composed of three main layers: the mucosa, submucosa, and muscularis. The muscularis layer, which consists of smooth muscle fibers, is primarily responsible for the contractile movements of the ureter. These movements, known as peristalsis, propel urine from the kidneys to the bladder. The mucosa layer lines the inner surface of the ureter and helps to protect it from the corrosive effects of urine. The submucosa layer contains blood vessels, lymphatic vessels, and nerve fibers that supply the ureter. The adventitia layer, also known as the serosa, is the outermost layer of the ureter and provides support and protection to the organ. Therefore, in the context of the contractile movements of the ureter, the muscularis layer is the key layer involved. Hence, the correct answer is option 3.

Posted by

Devendra Khairwa

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