Glycogen is seen in the lumina of endometrial glands :
a. During the luteal phase
b. During pregnancy only
c. During pre and post ovulatory
d. During proliferative phase only
e. At the time of ovulation only
Answer : A ; During the follicular, or proliferative phase, endometrial glands are elongated with narrow lumens and their epithelial cells contain some glycogen. Glycogen, however, is not secreted during the follicular phase.At the beginning of the luteal phase, progesterone induces the endometrial glands to secrete glycogen, mucus, and other substances