Question

During secretory phase of menstrual cycle, the endometrial lining attains thickness of

• A. $10$mm $-12$ mm
• B. $5$mm $-6$mm
• C. $3$mm $-4$ mm
• D. $1$mm $-2$mm

Answer 1

The correct option is C $3$mm $-4$ mm

The secretory phase of the menstrual cycle extends from 12-14 days. In secretory phase, thickness of endometrium progressively increases. Towards the end of the secretory phase, the endometrium is thick (3mm-4mm), soft and richly supplied with blood. These changes are for providing a suitable environment for attachment of the fertilized ovum. Thus the correct answer is option C.