Birth Control Effect on LH

[shinsoochoo]

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As a result of higher progesterone and estrogen levels, I know that birth control causes endometrial lining to remain high and ovulation to not occur.

Does this mean ovulation won't occur because LH secretion is inhibited by the negative feedback of the higher progesterone and estrogen levels? Also, does that mean the corpus luteum degrades?

I couldn't find this in TPR books, and I'm a male.

 

[Blueprint MCAT Tutor]

You've got it right.

The ethinyl estradiol in birth control pills tells the pituitary, "Hey, we're already pregnant! No need for LH/FSH, No need for ovulation!"

There wouldn't be a corpus luteum to degrade since the corpus luteum is the thing left over after the follicle bursts open and releases a secondary oocyte. If you're suppressing ovulation, no follicle is bursting open, so no corpus luteum ever forms.