Lecture 37: Pelvis and Perineum II Flashcards
4 urinary organs
kidneys
ureters
bladder
urethra
kidneys: functions (4)
-filter plasma to reabsorb useful products
-concentrate waste products for elimination
-secrete urine
-produce and release renin and erythropoietin
kidneys structure catte/pigs vs horse/dog/sheep/goat
cattle and pigs = multilobular
dogs = unilobular
what makes up the parenchyma in kidneys
cortex and medulla
2 layers of medulla of kidney
outer zone
inner zone
2 main components of kidney structure
capsule
parenchyma
blood supply to kidneys
renal artery and vein
where are renal artery and vein located in kidney
hilum
renal pelvis: definition, function, contents
enlargement that results from union of calices
origin of ureter
contains calyx and papilla
what 3 structures are found within the kidney hilum
renal artery
renal vein
ureter
ureters function
convey urine from kidneys to bladder
urinary bladder definition and function
muscular and distensible sac that collects urine for later disposal
does the bladder have a constant size and position
no
3 regions of bladder
apex
body
neck
where is neck of bladder located near
urethra
urethra functions
discharge urine
discharge semen in males
what structure discharges semen in males
urethra
2 regions of urethra
pelvic urethra
penile urethra
where is the pelvic urethra located
floor of pelvis
female reproductive system: internal organs (4)
ovaries
uterine tubes
uterus
part of vagina
female reproductive system: external organs (3)
part of vagina
vulva
mammary gland
ovaries functions (2)
produce estrogens and progesterone
mature and release oocytes
location of ovaries in dog (relative to kidneys)
immediately caudal to kidneys
3 structures of ovaries
-follicle
-corpus albicans
-corpus luteum
where does ovulation take place in dogs
anywhere in cortex
what is the functional unit of the ovary
follicle
what is the ideal site of palpation of ovarian structures in a mare
ovulation fossa
where does ovulation take place in horses
ovulation fossa
ovulation fossa: mares
contains follicles
where ovulation takes place
uterine tubes aka
oviducts
uterine tubes functions (5)
collect oocyte after ovulation
transport gametes and store sperm
provide suitable conditions for fertilization and early embryo development
transport embyro to uterus
uterus functions (3)
transport and store sperm
nurture embryo and fetus
participates in birth
3 uterus shapes
dublex
bicornis
simplex
what uterus shape do domestic mammals have
bicornis
cervix function
tight barrier except during estrus
store sperm
ovarian artery is a branch off
aorta
blood supply to ovaries
ovarian artery
blood supply to walls of uterus
uterine artery
2 branches of uterine artery
segmental artery
arcuate artery
blood supply to walls of uterine horns
segmental artery
uterine artery: parent artery
internal iliac artery
anastamoses in ovaries and uterus blood supply
uterine branch of ovarian artery and uterine artery
vagina definition
copulatory organ
participates in birth of offspring
2 structures caudal to vagina
vaginal vestibule
vulva
male reproductive system: internal organs (2)
ductus deferens
accessory sex glands
male reproductive system: external organs (4)
testes
epididymis
ductus deferens
penis
ductus deferens function
convey sperm from epididymis to pelvic urethra
pelvic urethra functions (3)
receive and mix secretions of sex accessory glands with sperm to form semen
convey semen = ejaculation to penile urethra
convey urine = urination to penile urethra
male accessory sex glands functions (2)
produce non spermatic component of semen
clean the urethra
4 accessory sex glands in males
ampullary glands
vesicular glands
prostate
bulbourethral glands
presence of male accessory sex glands: horse and bull
all 4
ampullary, vesicular, prostate, bulbourethral
presence of male accessory sex glands: boar
no ampullary
have: vesicular, prostate, bulbourethral
presence of male accessory sex glands: dog
ampullary
prostate
**NO vesicular or bulbourethral
presence of male accessory sex glands: cat
ampullary
prostate
bulbourethral
**NO vesicular
which male accessory sex gland is an enlargement of the ductus deferens
ampullary
ejaculatory duct
duct that results from union of ductus deferens and excretory duct of vesicular glands