MALE REPRODUCTIVE SYSTEM PART A-Completion Add the word or words that correctly complete each of the following statements. 1. Another name for reproductive cells is 2. The name given to the male organs of reproduction is the 3 The two products of the testes are sperm cells and Suspended below the perineum is a fleshy pouch that contains the testes and is called the 5 The boundary between the two chambers of the scrotum is a raised thickening known as the 6. In the dermis of the scrotum there is a thin layer of muscle called the 7 The smooth muscle in the dermis of the scrotum contracts to give the scrotum a characteristic appearance of Within the fetus, the testes have moved into the scrotum by the end of month number The failure of the testes to descend into the scrotum is called 10 The nerves, ducts, and blood vessels emerging from the testes together form the The canal through which the spermatic cord passes into the peritoneal cavity is the The tightly coiled tubules of the testes are known as 13 Nourishing cells lining the seminiferous tubules are the On 14. The cells lying between the seminiferous tubules are 15 The interstitial cells of the testes are responsible for producing 16 The plexus formed by the union of the seminiferous tubules is the 17 Efferent ducts arising from the rete testes enter the tubule called the 18 The process through which sperm cells are produced is 19. Sperm cells are formed from primordial cells known as 20 The process of spermatogenesis takes place in the 21 The cells produced by duplication of the spermatogonia are 22 The cellular process by which spermatocytes form spermatids is called 23. Spermatids will mature to form sperm cells, also known as 24 During the process of meiosis, a spermatocyte with 46 chromosomes will produce a spermatid having chromosomes that number 25 The chromosomes of the sperm cell are packed into the region of the cell known as the 26. Enzymes important in fertilization are contained in the tip of the head of the sperm cell called the 27. 28 The mitochondria of the sperm cell are contained in a portion of the cell known as the The tail of the sperm cell provides motion by acting as a The site of sperm cell maturation over a period of about two weeks is a duct called the 29.

Sperm cells, also called reproductive cells or gametes, are the male reproductive cells responsible for fertilizing the female egg to initiate the process of reproduction. These specialized cells are produced within the testes, the primary male reproductive organs. The testes are housed within a fleshy pouch called the scrotum, which is located below the perineum. The scrotum serves as a protective environment for the testes, helping to regulate their temperature, which is essential for the production and maturation of sperm cells.

The testes are composed of tightly coiled tubules known as seminiferous tubules, where the process of spermatogenesis occurs. Spermatogenesis is the process through which sperm cells are produced from primordial cells called spermatogonia. These cells undergo a series of divisions and differentiations to eventually form spermatocytes, which further develop into spermatids. Spermatids then mature to become sperm cells.

Within the testes, there are also interstitial cells, also known as Leydig cells, which are responsible for producing testosterone, the primary male sex hormone. The seminiferous tubules join together to form a complex network called the rete testis, which is connected to the efferent ducts. These ducts transport the sperm cells to the epididymis, a coiled duct where sperm cells undergo maturation and acquire the ability to move.

In summary, sperm cells are the male reproductive cells that are produced in the testes through the process of spermatogenesis. They are responsible for fertilizing the female egg during sexual reproduction. The testes, scrotum, seminiferous tubules, interstitial cells, and efferent ducts all play vital roles in the production, maturation, and transportation of sperm cells.

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