Human Reproduction Test - 2

Ovary is a primary sex organ. Growth, development and functioning of primary sex organs is regulated by pituitary gland.

Tunica vaginalis is a layer of visceral peritoneum found outside tunica albuginea which is a dense fibrous tissue covering over testes.

Leydig cells secrete male sex hormone - testosterone, which promotes the development of the accessory glands and controls male secondary characters.

The cauda epididymis is attached to the scrotal sac by a connective tissue called gubernaculum. The gubernaculum aids in the descent of the gonads.

Ampulla is the middle dilated part of the fallopian tube.

Rugae are the transverse ridges on the mucous membrane lining the vagina. They allow the vagina to stretch during childbirth. Many of the ridges disappear with the atrophy of menopause.

Primary spermatocyte is the diploid stage of spermatogenesis. They are formed by the mitotic division of spermatogonia which is diploid in nature.

The dictyate or dictyotene is a prolonged resting phase in oogenesis. In this stage, the female gametes are retained as primary oocytes which are formed in the stage of meiotic prophase I in ootidogenesis.

During follicular phase, regeneration of endometrium through proliferation of uterine and fallopian tube cells occurs and as a result, endometrium of uterus becomes considerably thickened in anticipation of pregnancy.

The middle piece of sperm contains a compact mass of mitochondria which has oxidative enzymes and supplies energy for the metabolism and movement of sperm.