During which phase of the ovarian cycle does inhibin primarily decrease FSH levels?
Understand the Problem
The question is asking about the ovarian cycle and specifically when inhibin has the primary effect of decreasing FSH levels. It requires knowledge of the hormonal changes that occur during each phase of the ovarian cycle.
Answer
Mid-follicular phase.
Inhibin primarily decreases FSH levels during the mid-follicular phase of the ovarian cycle.
Answer for screen readers
Inhibin primarily decreases FSH levels during the mid-follicular phase of the ovarian cycle.
More Information
Inhibin B levels increase early in the follicular phase and peak in the mid-follicular phase, coinciding with a decline in FSH levels. This is part of the body's feedback mechanism to manage ovarian follicle development.
Tips
A common mistake is to confuse the rises and falls of inhibin A and B with different phases. Each plays distinct roles during different times of the ovarian cycle.
Sources
- Inhibin B - an overview | ScienceDirect Topics - sciencedirect.com
- Inhibin A and B, Tumor Marker, Serum - Mayo Clinic Laboratories - pediatric.testcatalog.org
- Inhibin B - South Tees Hospitals NHS Foundation Trust - southtees.nhs.uk
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