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47 Cards in this Set
- Front
- Back
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The shaft contains 3 parallel columns of erectile tissue |
- coropa cavernosa - crura - urethra |
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Loose skin that covers the shaft of the penis and extends to cover the glans penis |
foreskin or prepuce |
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Scrotum has two components |
- Dartos muscle - Cremaster muscle |
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Male reproductive glands or gonads |
testes |
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What articulates the most seminal fluid? |
Seminal vesicles - 60% |
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Produces about 30-35% of the seminal fluid in the ejaculated semen |
prostate gland |
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Secretes a thick, clear mucus prior to ejaculation |
Cowper's (bulbourethral) gland |
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Process by which semen is forcefully expelled form the penis |
ejaculation |
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Sperm is matured and stored where? |
Epididymis |
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Swelling or enlargement of male breast |
Gynecomastia |
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production of sperm takes place here |
seminiferous tubules |
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What are leydig cells? |
Sex hormones that secrete androgens |
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Male sex hormones |
- Leydig cells - Testosterone |
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Responsible for secondary sexual characteristics |
Testosterone |
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A steroid hormone synthesized from cholesterol |
Testosterone |
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Men undergo what cycle? |
Hormonal |
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What happens during a male's hormonal cycle? |
- Testosterone levels do not fluctuate as dramatically as do women's estrogen and progesterone levels - Testosterone levels appear to be lowest in the evening and highest in the morning |
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What are nocturnal organisms? |
wet dreams |
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Stimulates sperm production in testes, triggers development of secondary sex characteristics, regulates sex drive |
Testosterone |
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Stimulates pituitary during sperm production |
GnRH |
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Where is the GnRH produced? |
Hypothalamus |
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Where is testosterone produced? |
Testes, adrenal glands |
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Where is ICSH (LH) produced? |
Pituitary |
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Where is FSH produced? |
Pituitary |
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Stimulates sperm production in testes |
FSH |
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The production of sperm |
spermatogenesis |
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What is semen? |
The ejaculated liquid that contains sperm |
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What are the functions of semen? |
- Nourish sperm (high in glucose) - Provide them w/ hospitable environment & means of transport if they are deposited within the vagina |
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What is homologous structure? |
Similar characteristic that is developed from the same cells in the developing female fetus |
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Scrotum is homologous to what? |
Labia majora |
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Male sexual response |
- Become fully aroused in shorter time - Once ejaculation, they usually cannot do so again for some period of time |
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Sexual arousal in men includes what? |
- Myotonia (increased muscle tension) - Vasocongestion (engorgement of the tissues w/ blood) |
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Increased muscle tension |
Myotonia |
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Engorgement of the tissues w/ blood |
Vasocongestion |
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What happens during erection? |
Blood vessels expand, increasing the volume of blood, especially within the corpora cavernosa |
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2 Stages of ejaculation |
- Emission & expulsion |
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Point at which ejaculation cannot be stopped |
Ejaculatory inevitability |
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When semen comes down from the ej duct and goes out to the end of the bladder than the penis |
Retrograde ejaculation |
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What is orgasm? |
Intense pleasurable physical sensations and general release of tension - Typically accompanies ejaculation |
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Period during which men are not capable of having an ejaculation again |
Refractory period |
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Strengthening the muscles that surround the penis |
Kegel exercises |
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Helps in producing intense orgasms and ejaculations |
Kegal exercises |
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Where is semen produced? |
Prostate gland, seminal vesicle, Cowper's gland |
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The younger you are the shorter the what? |
Refractory period |
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What does the follicle stimulating hormone do? |
- Stimulates follicles - Responsible for production of ovum, sperm |
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A fertile man produces several hundred million sperm within the ___ ___ of his testicles |
seminiferous tubules |
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Semen is mainly made up of secretions from the ____ ____ and the ___ ____ which mix in the urethra during ejaculation |
- seminal vesicles - prostate gland |
