What portion of the uterus is composed of smooth muscle and contracts rhythmically during orgasm and childbirth?
A)perimetrium
B)myometrium
C)peritoneum
D)endometrium

Question

Quizplus · Accepted Answer

The myometrium is the middle layer of the uterus wall and is composed of smooth muscle. It contracts rhythmically during orgasm and is responsible for the contractions during childbirth. The perimetrium is the outermost layer, while the endometrium is the innermost layer that lines the uterine cavity. The peritoneum is a membrane that lines the abdominal cavity and covers organs.

What Portion of the Uterus Is Composed of Smooth Muscle