Within the testes, tiny coiled tubes called seminiferous tubules produce sperm cells in a process known as spermatogenesis. These hormones regulate the menstrual cycle and prepare the body for potential pregnancy.
Human Reproduction And Developmental Anatomy
A single ejaculation can contain hundreds of millions of sperm, though only a small fraction will successfully navigate the female reproductive tract to reach the egg. The testes, or testicles, are the primary male reproductive organs, housed in a sac of skin called the scrotum, which maintains a temperature slightly cooler than the body's core temperature for optimal sperm production.
The Uterus and Vagina The uterus is a muscular, hollow organ with a thick lining called the endometrium, which prepares each month to receive a fertilized egg. FSH stimulates the seminiferous tubules to produce sperm, while LH prompts the testes to produce testosterone, the primary male sex hormone essential for sperm production and the development of male characteristics.
Human Reproduction And Developmental Anatomy
Accessory Glands and Ducts Sperm mature and are stored in the epididymis, a coiled tube atop each testis. The seminal vesicles and the prostate gland add seminal fluid to create semen, a milky fluid that provides energy for the sperm and creates a favorable environment.
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