Which mechanism explains why ovarian follicle atresia occurs during the reproductive cycle in humans?

💡 Explanation

Follicle atresia is driven by apoptosis of granulosa cells because these cells are essential for follicle development and hormone production. This regulated cell death eliminates follicles that are not selected for ovulation, therefore maintaining a balanced ovarian reserve, rather than allowing all follicles to mature or suppressing estrogen.

• If a pulmonary embolism blocks blood flow to a portion of the lung, what distinguishes the observed hypoxemia from hypoxemia due to high altitude?
• If a person with consistent sleep deprivation experiences transient cognitive improvement following a short nap, which mechanism explains this phenomenon better than others?
• Why does collagen deposition in arteries increase with age?
• If a marathon runner experiences muscle fatigue late in a race, which consequence follows regarding muscle fiber recruitment?
• Which consequence results when functional red blood cells decline?
• In a patient with chronic anemia treated with high-altitude residence to stimulate erythropoiesis, which effect dominates the hemoglobin-oxygen dissociation curve?