Male Sexual Physiology

What are the four stages of human sexual response?

____ is the stage with heightened physiological arousal which include increased breathing, blood flow to skin surface and fast heart rate

Erection occurs in ____ stage

Bulbourethral glands secretion release- pre-ejaculatory fluid- is _____ stage

_____ is the stage of maximum physiological arousal, could be sustained for a period of time prior to orgasm

“sex flush,” reddening of the skin on the abdomen and breasts, occurs in ____ stage.

_____ stage is accompanied by muscular contraction of the pelvic floor muscles

Ejaculation occurs during_____

What term describes the physiologic pause after ejaculation?

Decrease in arousal when sex is finished is referred to as _______ phase

T/F: females who experience multiple orgasms, return to plateau arousal followed by one or more additional orgasms
True False

Fancy word for erection is _____

During erection, _______(contraction/relaxation) of the smooth muscle, mainly the_______(specific muscle)

Which ANS division is responsible for erection?

Parasympathetic fibers from the _____ and ___ portions of the spinal cord, travel via the ____ nerves and plexus and the _____ nerves to the penile corpora and vasculature. Resulting in vaso____ of the penile blood vessels.

Penile flaccidity (aka detumescene) is mediate by the ____ nervous system. Where preganglionic fibers exit the ____ cord and synapse in prevertebral ganglia. Postganglionic fibers would then reach the genitalia via the ___ nerves, ___ plexus.

____ motor fibers from the sacral spinal cord form branch of the ____ nerve and innervate the striate penile muscles

Tactile sensation of the penis is due to ____ nerve

T/F: erection can only take place when there is input from higher brain centers
True False

Spontaneous erections occur during the REM sleep as a result of _________

_____diffuses across the extracellular space to the smooth muscle cell where it binds to

emission is the result of peristaltic _____ of the ampullary portion of the vas deferens, the seminal vesicles and the prostatic smooth muscles surrounding the prostatic urethra, and accompanied by _____ of the internal bladder sphincter which is under ______ control

T/F: ejaculation is a spinal cord reflex though also under considerable cerebral control
True False

Ejaculation is normally ____ of the internal urethral sphincter, while retrograde ejaculation occurs when the sphincter ______

What could be a likely cause for lack of emission or retrograde ejaculation?

What type of drug could help men with retrograde ejaculation or diminished emission?

T/F: excitement or arousal phase of the male sex response may be initiated by a multitude of internal or external stimuli, including psychological factors such as thoughts and emotions
True False

During the plateau stage, there is marked degree of ____ throughout the body

Orgasms seem to be related to the _____ of the autonomic nervous system, as is the ejaculatory phase

Early phases of sexual stimulation, _____ Signals dilate the arteries of the erectile tissues, likely due to release of Acetylcholine and _______.

Which part of the female anatomy secrete mucus inside the introitus (opening of the vaginal canal)?

Parasympathetic efferent controlling sexual response arise from the ____ plexus