Term
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Definition
| Sac containing the testes. |
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Term
| Cremaster and Dartos muscles |
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Definition
| Two structures that regulate the temperature of the testes. |
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Term
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Definition
| Subdivisions of the testes. |
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Term
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Definition
| Site of sperm cell development. |
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Term
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Definition
| Responsible for testosterone production. |
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Term
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Definition
| Large cells that nourish the germ cells and produce hormones. |
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Term
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Definition
| Most peripheral cells; they divide by mitosis. |
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Term
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Definition
| Germ cells produced from spermatogonia, which divide into two cells during the first meiotic division. |
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Term
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Definition
| Formed from primary spermatocytes these cells undergo a second meiotic division. |
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Term
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Definition
| Produced from a secondary spermatocyte; each has 23 chromosomes. |
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Term
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Definition
| Develop from a spermatid by forming a head, midpiece, and flagellum; spermatozoon. |
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Term
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Definition
| Sperm cell vesicle containing enzymes released during fertilization. |
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Term
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Definition
| Receive sperm cells from the seminiferous tubules. |
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Term
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Definition
| Tubes that exit the testis. |
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Term
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Definition
| Receives the efferent ductules from the testis; a comma-shaped structure on the outside of the testis. |
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Term
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Definition
| Site of sperm cell maturation. |
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Term
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Definition
| Duct that passes through the abdominal wall. |
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Term
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Definition
| Blood vessels and nerves that supply the testis, the cremaster muscle, and the ductus deferens. |
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Term
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Definition
| Formed by the ampulla of the ductus deferens and a duct from the seminal vesicle; empties into the urethra. |
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Term
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Definition
| Extends to the tip of the penis. |
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Term
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Definition
| Engorgement of penile erectile tissue with blood. |
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Term
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Definition
| Paired columns of erectile tissue in the penis. |
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Term
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Definition
| Single column of erectile tissue in the penis; the urethra passes through it. |
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Term
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Definition
| Expanded distal end of the penis. |
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Term
| External urethral orifice |
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Definition
| Opening of the urethra to the exterior. |
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Term
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Definition
| Skin that covers the glans penis; foreskin. |
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Term
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Definition
| Surgical removal of the prepuce. |
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Term
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Definition
| Two sac-shaped glands near the ampulla of the ductus deferens. |
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Term
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Definition
| Gland the size and shape of a walnut that surrounds the urethra and the two ejaculatory ducts. |
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Term
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Definition
| Small glands located near the base of the penis. |
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Term
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Definition
| Mixture of sperm cells and glandular secretions. |
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Term
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Definition
| Glands producing a mucous secretion that neutralizes the acidic urethra. |
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Term
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Definition
| Glands producing thick, mucuslike secretions containing nutrients that nourish the sperm cells. |
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Term
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Definition
| Gland producing thin, milky secretions with an alkaline pH that neutralizes acidic secretions of the testes, seminal vesicles, and the vagina. |
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Term
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Definition
| Hormone released from the hypothalamus; stimulates the anterior pituitary to secrete two hormones. |
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Term
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Definition
| Released from the anterior pituitary; stimulates interstitial cells to secrete testosterone. |
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Term
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Definition
| Released from the anterior pituitary; binds to Sertoli cells and promotes sperm cell development and inhibin secretion. |
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Term
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Definition
| Secreted by Sertoli cells; inhibits FSH secretion. |
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Term
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Definition
| Before puberty, small amounts are produced by the testes and adrenal gland; inhibits GnRH, LH, and FSH secretion. |
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Term
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Definition
| Causes the enlargement and differentiation of the male genitalia; promotes the development of secondary sexual characteristics; necessary for spermatogenesis. |
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Term
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Definition
| Hormone required for normal sexual behavior. |
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Term
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Definition
| Pleasurable sensation associated with ejaculation. |
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Term
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Definition
| Inability to accomplish the sexual act. |
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Term
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Definition
| Occurs when parasympathetic action potentials cause the dilation of the arteries that supply blood to the erectile tissue of the penis. |
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Term
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Definition
| Sympathetic action potentials stimulate the seminal vesicles and prostate gland to release their secretions. |
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Term
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Definition
| Rhythmic contractions that force semen out of the urethra; caused by action potentials sent to skeletal muscles at the base of the penis. |
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