CHAPTER_SEVEN - CHAPTER SEVEN The function of the male...

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CHAPTER SEVEN The function of the male reproductive system is to produce, sustain, and transport sperm and to secrete the hormone testosterone. ORGANS OF THE MALE REPRODUCTIVE SYSTEM ORGAN/STRUCTURE/ELEMENT DEFINITION testis (plural – testes or testicles); testicle primary sex organs – paired, oval-shaped, and enclosed in a sac called the scrotum. The testes produce spermatozoa (sperm cells) and the hormone testosterone. sperm; spermatozoon (pl. – spermatozoa) the male germ cell (microscopic in size) which, when united with the ovum, produces a zygote (fertilized egg) that, with subsequent development, becomes known as an embryo testosterone the principal male sex hormone – its chief function is to stimulate the development of the male reproductive organs and secondary sex characteristics (ex.: facial hair) seminiferous tubules up to 900 coiled tubes within the testes in which spermatogenesis occurs epididymis a coiled 20-foot tube atop each of the testes that carry the mature sperm up to the vas deferens vas deferens, ductus deferens; seminal duct duct carrying the sperm from the epididymis to the urethra. (Note: the urethra also connects with the urinary bladder and carries urine to the outside of the body. A circular muscle constricts during intercourse to prevent urination.) seminal vesicles two main glands located in the base of the bladder that open into the vas deferens. The glands secrete a thick fluid, which forms part of the semen. prostate gland encircles the upper end of the urethra. The prostate gland secretes a fluid that aids in the movement of the sperm and ejaculation. scrotum two sacs -- each suspended separately on 1
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either side of and just behind the penis. The testes are enclosed in the scrotum. penis male organ of urination and copulation (sexual intercourse) glans penis enlarged tip on the end of the penis prepuce fold of skin near the tip of the penis ( foreskin ) semen composed of sperm, seminal fluids, and other secretions genitalia (genitals) reproductive organs (male or female) 2
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PREFIX PREFIX DEFINITION trans- through, across, beyond SUFFIX SUFFIX DEFINITION -ism state of COMBINING FORMS FOR THE MALE REPRODUCTIVE SYSTEM COMBINING FORM DEFINITION balan/o glans penis epididym/o epididymis orchi/o, orchid/o orch/o, test/o testis, testicle prostat/o prostate gland vas/o vessel, duct vesicul/o seminal vesicle COMBINING FORMS COMMONLY USED WITH MALE REPRODUCTIVE SYSTEM TERMS COMBINING FORM DEFINITION andr/o male sperm/o, spermat/o spermatozoon (pl. - spermatozoa), sperm MEDICAL TERMS BUILT FROM WORD PARTS TERM DEFINITION anorchism state of absence of testis (unilateral or bilateral) balanitis inflammation of the glans penis balanorrhea excessive discharge from the glans penis
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CHAPTER_SEVEN - CHAPTER SEVEN The function of the male...

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