Human Sexuality
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Created by:
Laurenpstiles on February 8, 2012
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8 terms
Terms | Definitions |
|---|---|
 Physiological Process | Excitement > Plateau > Orgasm > Resolution |
| Sexual Stimulation | Includes hearing, sight, touch, psyche, and smell Results in nerve transmission from the brain to the penis, affecting cyclic GMP levels in penis |
| Cyclic GMP | Increase blood flow in penis - swells and keeps blood from flowing out |
| Physiology of Erection | Stimulation increases cyclic GMP (enzyme) in penis and relaxation of smooth muscle > Increased blood flow into erectile tissue > Veins carrying blood out are shut off > Blood trapped in erectile tissue |
| Loss of Erection | Lack of sexual stimulation leads to breakdown of cyclic GMP (enzyme) by PDE5 (breaks down GMP and restores to normal state) > Decreased blood flow into erectile tissue > Blood no longer trapped in erectile tissue |
| Impotence or Erectile Dysfunction (ED) | Inability to get an erection adequate for satisfactory sexual performance |
| Impotence ___ with age | Increases |
| ED Drugs | Ex. Viagra Allow stimulation to increase cyclic GMP by suppressing enzyme PDE5 that destroys cyclic GMP > Increased blood flow into erectile tissue > Veins carrying blood out are shut off > Blood trapped in erectile tissue |
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