Meiosis and Gametogenesis in Mammals

18 Questions

What is the typical stage of embryonic development when it is returned to the uterus during in vitro fertilization?

8 cell stage

What is the process by which sperm are injected directly into an egg?

Intracytoplasmic sperm injection

What is the term for the formation of sperm?

Spermatogenesis

What is the cell that undergoes meiosis to produce sperm?

Primary spermatocyte

What is the cell that undergoes meiosis to produce oocytes?

Primary oocyte

What is the stage of the oocyte that is released from the ovary during ovulation?

Secondary oocyte

What is the primary function of the Leydig cells in the male reproductive system?

To produce hormones

Why are the testes located outside the abdominal cavity in the scrotum?

To reduce the temperature for normal sperm development

What is the primary function of the epididymis?

To store and mature sperm

What is the function of the bulbourethral glands in the male reproductive system?

To neutralize acidic urine

What is the composition of the human penis?

Three cylinders of spongy erectile tissue

What is the function of the seminal vesicles in the male reproductive system?

To contribute to the total volume of semen

What is the purpose of the Sertoli cell in the process of spermatogenesis?

To provide nutrients to the developing sperm

What is the primary difference between the development of sperm and eggs in mammals?

Sperm are produced throughout the life of a sexually mature male, while eggs are produced in a limited number during fetal development

What is the process by which a primary spermatocyte becomes four mature sperm cells?

Meiosis

Where do spermatogonial stem cells undergo mitotic divisions in the process of spermatogenesis?

Seminiferous tubule

What is the final stage of sperm development in which the sperm becomes motile and mature?

Mature sperm

What is the role of the epididymis in the process of spermatogenesis?