mod 11 Flashcards
function of urinary system
storage of urine, excretion of urine, regulates ion balance
nephron
the smallest functional unit of the kidney
where are the kidneys and what protects them
located in the retroperitoneal position, protected by floating ribs, 2 layers of fat, and a fibrous capsule
functions of renal corpuscle
filtration of blood
what is the urinary tract
transports urine outside of body including ureters, urethra, bladder, and urethra
where are the ureters
retroperitoneal, located in pelvis
functions of the renal tubules
reabsorption
which urethral sphincter is under voluntary control
external is voluntary
internal is involuntary
how do we urinate
when the bladder is full stretch receptors send signals to pons, detrusor muscle is stimulated to contract and squeeze out urine
what is the detrusor muscle
muscle that contracts to release urine
what is trigone
stationary region that directs urine to urethra
perineum
diamond-shaped space split into urogenital triangle and anal triangle
gametes
sperm/eggs
gonads
testes and ovaries
bulbospongiosus muscle
covers corpus spongiosum and bulb of vestibule
ischiocavernosus muscle
covers corpora cavernosa
where do eggs usually fertilize and where do they implant
fertilize in the infundibulum they implant in the body of the uterus
where is the cervix
inferior to isthmus and superior to external os
layers of the uterus
perimetrium, myometrium, endometrium
parts of the uterus
fundus, body, isthmus, cervix, external os, and vagina
where is the vagina
inferior to cervix
what are the ligaments associated with the ovaries and uterus
round ligaments, broad ligament, suspensory ligament, ovarian ligament
lactiferous ducts
collects milk from lobules within each lobe and carries it to the nipple
lactiferous sinuses
enlarged region where milk accumulates during nursing
glands that contribute to seminal fluid
seminal vesicles, prostate gland, bulbourethral glands
cremaster muscle
elevates or lowers testes
what pathway does the ductus deferens take
runs from epididymis into pelvic cavity behind your bladder and connects to your urethra through a structure called the ejaculatory duct
what are the three parts of the male urethra
prostatic, membranous, spongy
erectile tissues
corpora cavernosa
what is the prostate gland and where is it
corpus spongiosum
