Choose the correct statement about peg cells.
A) They are located within the vestibular bulbs.
B) They secrete mucins within the uterine tubes.
C) Their secretion is necessary for capacitation.
D) Their secretion neutralizes the vagina.
E) They surround the mature Graafian follicle.
C) Their secretion is necessary for capacitation.
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The weight of the skin in most adults is about:
a. 5 pounds b. 10 pounds c. 20 pounds d. 40 pounds
The blood pressure in a vessel is 10 units at point A and 10 units at point B. Flow between those points is ________.
Fill in the blank(s) with the appropriate word(s).
What causes closure of the foramen ovale at birth?
A. A rise in fetal oxygen levels, which triggers growth of the epithelial lining B. Rapid myocardial tissue growth stimulated by pregnancy hormones C. Higher pressure in the left atrium, which causes interatrial septum flaps to close D. Migration of connective tissue from the right atrioventricular valve E. An increase in endothelial mucous production, which forms a plug
Myelin consists mainly of which of the following?
A. Cholesterol B. Carbohydrates C. Lipofuscin D. Phospholipids E. Proteins