Which hormone surge triggers ovulation?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the ARRT Ultrasound Test with comprehensive study tools including flashcards and multiple choice questions, all with detailed explanations. Ace your exam with confidence!

Multiple Choice

Which hormone surge triggers ovulation?

Explanation:
Ovulation is triggered by a surge of luteinizing hormone released from the anterior pituitary. As the dominant follicle matures, estrogen levels rise and reach a threshold that produces positive feedback on the hypothalamus and pituitary. This prompts a sharp LH surge, and the peak LH causes the follicle to rupture and release the oocyte. LH also stimulates the formation of the corpus luteum, which then produces progesterone to prepare the endometrium. So the initiating signal for ovulation is the LH surge. FSH mainly supports follicle growth, estrogen rise sets the stage for the LH surge, and progesterone rises after ovulation.

Ovulation is triggered by a surge of luteinizing hormone released from the anterior pituitary. As the dominant follicle matures, estrogen levels rise and reach a threshold that produces positive feedback on the hypothalamus and pituitary. This prompts a sharp LH surge, and the peak LH causes the follicle to rupture and release the oocyte. LH also stimulates the formation of the corpus luteum, which then produces progesterone to prepare the endometrium. So the initiating signal for ovulation is the LH surge. FSH mainly supports follicle growth, estrogen rise sets the stage for the LH surge, and progesterone rises after ovulation.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy