Archive for the ‘cycling’ tag
Cycling Woman
What specific event causes a woman to ovulate each month…?
In the middle of her menstrual cycle, a woman normally releases one egg into the fallopian tube from her ovary.
What specific physiologic event causes the woman to ovulate?
@ Tracey- Is LH secreted by the hypothalamus or something else?
So far, excellent answers, keep it up!
@Know It All- Well done! The adenohypophyseal (ant. pit.) secretion of LH! Very well done by all!
Through a signal transduction cascade initiated by LH, proteolytic enzymes are secreted by the follicle that degrade the follicular tissue at the site of the blister, forming a hole called the stigma. The cumulus-oocyte complex (COC) leaves the ruptured follicle and moves out into the peritoneal cavity through the stigma, where it is caught by the fimbriae at the end of the fallopian tube (also called the oviduct). After entering the oviduct, the ovum-cumulus complex is pushed along by cilia, beginning its journey toward the uterus.
Gosh, more questions! =P
The LH is secreted in the anterior lobe of the pituitary gland, which is located at the base of the hypothalamus.
This is interesting !
Kona Bike 2010 Pro Women – super slo mo
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