Physical Examination 19-3 Flashcards
What are the components of a male GU examination?
- penis
- testicles
- epididymis
- scrotum
- prostate gland
- seminal vesicles
What is the function of the penis?
- to excrete urine and introduce semen into the vagina
Describe the urethral orifice
- a slit like opening about 2mm ventral to the tip of glans
What covers the glans at birth?
- foreskin aka prepuce
What temperature is required in the scrotum for spermatogenesis to take place?
- temperatures lower than 37 degrees C
What is inside each scrotum?
- testis
- epididymis
- spermatic cord
- muscle layer
What produces spermatozoa and testosterone?
- testicles
What surrounds the urethra at the bladder neck?
- prostate gland
What produces the major volume of ejaculatory fluid?
- prostate
What enzyme is found in ejaculatory fluid that is responsible for liquifying coagulated semen?
- fibrinolysin
How much blood must the corpora cavernosa be engorged with for an erection to take place?
- 20 to 50 mL
What type of reflex is an erection?
- neurovascular reflex induced by psychogenic or local reflex mechanism
What is an orgasm?
- the emission of secretions from the vas deferens, epididymis, prostate, and seminal vesicles
External genitalia are the same for males and females up to when?
- 8 weeks of gestation
When does differentiation between male and female external genitalia occur?
- by 12 weeks of gestation