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36 Cards in this Set
- Front
- Back
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-produces male and female gametes -enhances fertilization of an oocyte by a sperm -matures the new individual until birth (in the female) -produces reproductive hormones |
Reproductive System |
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testes in males and the ovaries in females produce gametes |
Formation of Gametes |
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first meiotic division |
Reduction division |
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during the first meiotic division that the chromosome number is reduced from |
46 (23 pairs) to 23 chromosomes |
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testis divide into |
250 cone-shaped lobules |
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second meiotic division is similar to mitosis, chromosomes each consisting of |
2 Chromatids |
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-consists of the testes (sing, testis), a series of ducts, accessory glands and supporting structures |
Male Reproductive System |
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2 supporting structures |
scrotum and the penis |
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saclike structure containing the testes |
Scrotum |
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divided into right and left internal compartments by the incomplete connective tissue septum |
Scrotum |
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layer of smooth muscle and beneath the skin and a layer of loose connective tissue |
Dartos muscle |
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oval organs |
Testes: or male gonads |
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outer part of each testis consists of a thick, white connective tissue capsule |
Testes: or male gonads |
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How many cm is the oval organ? |
4-5 cm long |
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the site of sperm cell development |
Seminiferous tubules |
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located outside the seminiferous tubules |
interstitial cell of Leydig |
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a coiled tube system |
Epididymis |
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a coiled tube system |
Epididymis |
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final changes of sperm cells and occur after ejaculation |
capacitation |
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leads to the rete testis, which opens into the efferent ductules that extends to the epididymis |
Seminiferous tubules |
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located on the testis and is the site of sperm maturation |
Epididymis |
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passes from the epididymis into the abdominal cavity |
Ductus deferens |
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is formed by the joining of the ductus deferens and the duct from the seminal vesicles |
Ejaculatory Duct |
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extends from the urinary bladder through the penis to the outside of the body |
Urethra |
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male organ of copulation and functions in the transfer of sperm cells from the male to the female |
Penis |
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two columns of erectile tissue from the dorsal portion and the side of the penis |
corpora cavernosa |
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third small erectile column occupies the ventral portion of the penis |
corpora spongiosum |
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consists of glandular and muscular tissue |
Prostate Gland |
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a pair of small, mucus-secreting glands located near the base of the penis |
Bulbourethral Gland |
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Bulbourethral Gland also called |
Cowper glands |
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surrounds the urethra and two ejaculatory ducts |
Prostate Gland |
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4th month of development, the ovaries contain 5 million oogonia |
Female Reproductive System |
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by puberty, ________ to ________ primary oocyte |
300,000 to 400,000 |
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the ovaries contain _______ oogonia |
5 million |
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joined the prostatic urethra within the prostate gland |
Ejaculatory duct |
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secretes testosterone
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Seminiferous tubules |
