During the 12 hour period preceding ovulation, which of the following occurs? O A mucus plug at the cervix occurs, to keep sperm out. O the number of developing corpus albicans is increasing. O A surge of LH is secreted from the pituitary. O The plasma concentration of progesterone is rising.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
icon
Related questions
Question
**Question 45**

**During the 12 hour period preceding ovulation, which of the following occurs?**

- ○ A mucus plug at the cervix occurs, to keep sperm out.
- ○ the number of developing corpus albicans is increasing.
- ○ A surge of LH is secreted from the pituitary.
- ○ The plasma concentration of progesterone is rising.

**Explanation**

This question is designed to test your understanding of the physiological changes that occur in a woman's body during the menstrual cycle, specifically in the period leading up to ovulation. Here's a brief explanation of each option to help you understand the correct context:

1. **A mucus plug at the cervix occurs, to keep sperm out.**
   - This is typically not accurate in the context of ovulation. During ovulation, cervical mucus becomes thin and more permeable to aid sperm passage.

2. **The number of developing corpus albicans is increasing.**
   - The corpus albicans is a degenerated form of the corpus luteum and typically increases during the latter phase after the ovulation if pregnancy does not occur.

3. **A surge of LH is secreted from the pituitary.**
   - This is the correct answer. A surge of Luteinizing Hormone (LH) from the pituitary gland triggers ovulation. This hormone surge typically occurs about 24-36 hours before the egg is released from the ovary.

4. **The plasma concentration of progesterone is rising.**
   - This typically occurs after ovulation has taken place, as the corpus luteum begins to secrete progesterone to prepare the endometrium for potential implantation.

**Correct Answer: A surge of LH is secreted from the pituitary.**

Understanding these hormonal changes is critical for comprehending reproductive physiology and can be beneficial for subjects dealing with fertility and menstrual health.
Transcribed Image Text:**Question 45** **During the 12 hour period preceding ovulation, which of the following occurs?** - ○ A mucus plug at the cervix occurs, to keep sperm out. - ○ the number of developing corpus albicans is increasing. - ○ A surge of LH is secreted from the pituitary. - ○ The plasma concentration of progesterone is rising. **Explanation** This question is designed to test your understanding of the physiological changes that occur in a woman's body during the menstrual cycle, specifically in the period leading up to ovulation. Here's a brief explanation of each option to help you understand the correct context: 1. **A mucus plug at the cervix occurs, to keep sperm out.** - This is typically not accurate in the context of ovulation. During ovulation, cervical mucus becomes thin and more permeable to aid sperm passage. 2. **The number of developing corpus albicans is increasing.** - The corpus albicans is a degenerated form of the corpus luteum and typically increases during the latter phase after the ovulation if pregnancy does not occur. 3. **A surge of LH is secreted from the pituitary.** - This is the correct answer. A surge of Luteinizing Hormone (LH) from the pituitary gland triggers ovulation. This hormone surge typically occurs about 24-36 hours before the egg is released from the ovary. 4. **The plasma concentration of progesterone is rising.** - This typically occurs after ovulation has taken place, as the corpus luteum begins to secrete progesterone to prepare the endometrium for potential implantation. **Correct Answer: A surge of LH is secreted from the pituitary.** Understanding these hormonal changes is critical for comprehending reproductive physiology and can be beneficial for subjects dealing with fertility and menstrual health.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Endocrine system
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education