Male Repro

Testis Exocrine and cytogenic function

produce spermatozoa

testis endocrine function

hormone secretion

what type of tissue are the seminiferous tubules found in

Parenchyma

path sperm takes to exit the testis

sem. tubules, rete testis, efferent ducts, epidiymis

what do sertoli cells do

nurture germ cells through development

produce hormone to help

where are sertoli cells located

inside sem. tubules above the basement membrane

what do sperm cells start as

germ cells

what is outside the seminiferous tubules

interstitial tissue, leydig cells, and blood vessels

what is important about the location of leydig cells and blood vessels

leydig cells are located near blood vessels so the hormones can easily circulate through the blood

4 ways of thermoregulation

scrotum

Pampiniform Plexus

Cremaster muscle

Tunica Dartos muscle

what does the scrotum do for thermoregulation

has nerve endings that sense when the testis are too hot

allows testis to be located outside the body

What does the pampiniform plexus do

counter current heat exchange between veins and arteries

what does creamaster muscle do

helps faciliate the pampiniform plexus

quickly contract testis

Tunica Dartos

sustained muscle contractions

epidiymis head latin name

caput

head/caput function

absorption to concentrate sperm

transportation

corpus/body function

mature sperm

remove cytoplasmic droplet

fertility

forward motility

body other name

corpus

tail latin name

cauda

cauda function

stores sperm before ejaculation

where does the vas deferens connect

epididymis to urethra

vas deferens function

tube for sperm transport

muscular layers

what makes up the spermatic cord

nerves, blood vessels, lympthatic vessels, pampiniform plexus, cremaster muscle

what are the accessory sex glands

seminal vesicles, prostate, bulbourethral gland

seminal vesicle function

production of seminal fluid

flushes remaining urine from tract

makes sure sperm won’t die on contact bc of pH issues

Prostate function

body of the fluid

what species has a small prostate

bull & ram

what species has a large prostate

boar

bulbourethral gland function

large gelatinous fraction

what is corpus cavernosum

filled with blood vessels, smooth muscle cells,

corpus cavernosum function

helps the penis erect

corpus spongiosum function

surround penile urethra and ensure it doesn’t get crushed during erection

what is the connective tissue that houses the rete testis

mediastinum