Human Sexual Response Flashcards
what are 4 phases of human sexual response
excitation, plateau, orgasm, resolution
what are main 2 physiologic processes responsible for response?
myotonia and vasocongestion
phase 1 excitation is mostly..
vasocongestion for both men and women
male excitation phase signs
erection
scrotal sac thickens and premaster muscle contracts and elevates scrotum
female excitation signs (7)
vaginal lubrication
clitoris enlarges
nipples erect - myotonia muscle contraction
breasts enlarge
labia minora swell and open, become darker
upper 2/3rd vagina balloons
cervix and uterus stand up - tenting effect
plateau phase 3 things for females
orgasmic platform is formed - outer 1/3rd of vagina thickens (without this don’t get orgasm)
Tenting is complete
Clitoris is erect
Males plateau phase
cowpers glands secrete fluid through tip of penis (may contain live sperm)
Scrotum higher testicles bigger
male orgasm
2 stages:
contraction: Seminal vesicles, vas deferens and prostate
contraction of urethra and penis: ejaculation
Female orgasm
all at once:
Contraction of orgasmic platform, contraction of uterus
oxytocin is major player
intercourse during alter pregnancy…
avoid in early 3rd trimester could induce preterm labor due to orgasm and semen has prostaglandins that can induce labor
resolution male vs. female
females have no refractory period
pleasure centers are __ mediated and in more primitive part of the ___
dopamine mediated
primitive part of forebrain
__ phase is slower in women
excitation phase
3 types of orgasms of females
via pudendal nerves from clitoral stimulation
G spot stimulation via pelvic nerves
Blend of both
nerves of sexual response for men in each phsaase
excitation parasympathetic: point
Orgasm: SNS - shoot
