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Multiple Choice
Within the endometrium, the ________ layer is shed during menstruation and the ______ layer contains stem cells.
A
Functional; myometrium.
B
Functional; basal.
C
Perimetrium; myometrium.
D
Basal; functional.
Verified step by step guidance
1
Understand the structure of the uterus: The uterus is composed of three layers - the perimetrium (outer layer), myometrium (middle muscular layer), and endometrium (inner lining).
Focus on the endometrium: The endometrium is the innermost layer of the uterus and is crucial for menstruation and pregnancy.
Identify the layers of the endometrium: The endometrium consists of two main layers - the functional layer and the basal layer.
Determine the role of each layer: The functional layer is the part of the endometrium that thickens and is shed during menstruation. The basal layer remains intact and contains stem cells that regenerate the functional layer after menstruation.
Match the correct terms: Based on the roles, the functional layer is shed during menstruation, and the basal layer contains stem cells. Therefore, the correct answer is 'Functional; basal.'