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Flashcards in Human Sexual Response Deck (9)
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1

4 phases of human sexual response

Excitation
Plateau
Orgasm
Resolution

2

The 2 physiologic process responsible for most of the human sexual response in men and women

Vasocongestion
Myotonia

3

examples of myotonia in women

nipples erect

4

female orgasmic platform

outer third of vagina thickens, swells. without it, no orgasm occurs

5

plateau in males

Bulbourethral glands / cowper's glands secrete fluid (may contain live sperm)

6

2 stages of orgasm in men

1. contraction of seminal vesicles, vas deferens and prostate

2. contraction of urethra and penis: ejaculation

7

Retrograde ejaculation

In some cases, the urinary valve that opens into the bladder is open as the semen heads toward the urethra. Semen flows into bladder instead (path of least resistance).
More common in men with MS or diabetes, and in men with history of bladder/ prostate surgery

8

Men: spinal reflexes in erection

sacral spinal cord responds to stimulation, sends message via parasympathetic to relax the penile arteries: more blood flows to penis.

9

Men: spinal reflexes in ejaculation

This occurs higher in spinal cord because sympathetic trunk is higher.
message to sympathetic system causes muscle contractions.