5.11 Male Reproductive Physiology Flashcards
Part of the testis found in the peritubular compartment
Leydig cells- produce sex hormones
Part of the testis found in the intratubular compartment
Seminiferous tubules: contains Gametes and Sertoli cells
Spermatogenesis starts at _y/o
13 y/o
Spermatogonium which remains in the basal compartment of seminiferous tubules
Spermatogonium A
Germ cell proliferation occurs in which compartment
Adluminal compartment
Formation of acrosome by nuclear shaping and condensation
Spermiogenesis
What do you call the Release of spermatids from contact Sertoli cells
Spermiation
Part of the spermatozoon which has mitochondria
Mid piece
Genes activated for flagellum formation
Tubulin and dynein
Sertoli cells secrete which hormones
Antimullerian
Inhibin
Activin
Intrinsic regulation of spermatogenesis is by
Leydig cells
Low frequency of GnRH pulses effects in which hormone release
Low GnRH- FSH release
High GnRH- LH release
This hormone stimulates Leydig cells to produce testosterone
LH
This hormone forms blood testis barrier by inducing Sertoli cells to secrete ABP
FSH
Even at the time if death this hormone is still at high levels
Testosterone
Andropause starts at what age
60y/o
Responsible for prostatic secretions
A. Testosterone
B. DHT
A. Testosterone - spermatogenesis
B. DHT - correct
Hormone Responsible for descent of testes in fetal life
Testosterone
At this month of gestation, testes is located in scrotum A. 3 mos B. 4 mos C. 5 mos D. 6 mos E. 7 mos
E. 7 mos
Stages in the male sexual act that have PARAsympathetic stimulation
Erection and lubrication - parasympathetic
Emission and ejaculation - sympathetic
Beginning phase of arousal A. Desire B. Excitement C. Plateau D. Orgasm E. Resolution
A. Desire - physical attraction via pheromones
B. Excitement - beginning phase of arousal CORRECT
C. Plateau - peak phase of sexual excitement
D. Orgasm - climax, semen ejaculated
E. Resolution - post orgasm phase, returns to normal flaccid state
Phase of the male sexual response cycle where semen in ejaculated
Orgasm
Counters acidity of the vagina
Seminal plasma
Capacitation occurs in the
Vagina
Impotence in men is known as
Erectile dysfunction
A cavernosal sexual arousal disorder
A. Parkinson’s
B. Alzheimer’s
C. Peyronie’s
A. Parkinson’s
B. Alzheimer’s
C. Peyronie’s - CORRECT
A and B are both neurogenic
Normal forward progression of sperm A. 0 b. 1+ C. 2+ D. 3 +
2+
Main source of energy of the sperm
A. Glucose
B. Fructose
C. Sucrose
B. Fructose
Plasminogen activator is needed for this process A. Capacitation B. Spermiation C. Spermiogenesis D. Steroidgenesis
B. Spermiation
Stage of spermatogenesis A. Capacitation B. Spermiation C. Spermiogenesis D. Steroidgenesis
C. Spermiogenesis
Across all reaction occurs here A. Capacitation B. Spermiation C. Spermiogenesis D. Steroidgenesis
A. Capacitation
