Practice Question
How many days is the average menstrual cycle?
Answer Choices:
Correct Answer:
28.
Rationale:
🗓️The average menstrual cycle length is 28 days, reflecting the typical pattern of ovarian and endometrial changes.
🗓️The follicular phase length varies among individuals, but the luteal phase is relatively constant at ~14 days after ovulation.
🗓️Cycles normally range from ~21–35 days, yet educational and clinical references use 28 days as the standard mean.
🗓️This 28-day framework helps time ovulation (around day 14) and anticipate menses onset when pregnancy does not occur.
🗓️Understanding the hypothalamic-pituitary-ovarian axis within the 28-day model aids accurate cycle tracking and patient education.
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This question is from HESI Admission Assessment (A²) Exam Anatomy & Physiology which contains 30 questions.
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From Exam
HESI Admission Assessment (A²) Exam Anatomy & Physiology
30 Questions
View Full Exam Start PracticingQuestion Details
- Category: HESI A2
- Subcategory: Anatomy & Physiology Exam(s)
- Domain: Anatomy & Physiology~2025
- Answer Choices: 4