Lab Practical - Functions Flashcards
Tunica Dartos Muscle
can increase or decrease surface area around the testes for thermoregulation
Visceral Vaginal Tunic
layer that covers the testicle
Parietal Vaginal Tunic
layer under the scrotum, between the scrotum and the testicle
Seminiferous Tubules
produce sperm
Rete Testis
network of collecting tubules
Head (caput) of Epididymis
sperm is moved here, not motile yet, stereocilia are used for fluid absorption
Body (corpus) of Epididymis
transportation and maturation occur
Tail (cauda) of Epididymis
sperm are matured and concentrated here for storage
Vas Deferens
transport sperm into the body
Cremaster Muscle
can contract to pull the testicles close to the body for thermoregulation
Pampiniform Plexus
vessels that surround the artery to cool the blood
Vesicular Gland / Seminal Vesicles
produce fluid for semen
Prostate Gland
produce fluid for semen
Bulbourethral / Cowpers Gland
produce fluid for semen
Urethralis Muscle
forces release of seminal fluid during ejaculation as well as emptying of the last vestiges of urine during urination
Ischiocavernosus Muscle
contracts to close the crura and stop venous return
crura
carries blood return from the penis
Bulbospongiosus Muscle
helping to expel semen during ejaculation and empty the urethra
Retractor Penis Muscle
contracts to retract the penis into the sheath and relaxes to allow the penis to extend from the sheath
Collicilus Seminalis
site where sperm mixes with fluid to become semen
Sigmoid Flexure
the shape of the penis held inside the sheath
Urethra
allows urine to leave the body
Corpus Cavernosum
filled with blood to become rigid
Corpus Spongiosum
surrounds the urethra
Erection Canals
blood flow through the penis
Glans Penis
the tip of the penis, can be various shapes
Broad Ligament
support for structures in the female reproductive tract
Mesometrium
attached to the uterus, to give support
Mesosalpinx
attached to the oviduct, to give support
Mesovarium
attached to the ovary, to give support
Vulva
protects the internal reproductive organs from injury and infectious organisms
Vestibule
has vestibular glands that produce fluid for lubrication
Suburethral Diverticulum
a blind sac located below the opening of the urethra in the vestibule of the reproductive tract
Fornix Vagina (cow)
blind sac near the cervix
which animal: annular/cervical rings
cow
which animal: interdigitating pads
sow
caruncles (cow)
forms the placenta
uterotubual junction
connects the uterine horn to the oviduct, controls the movement of spermatozoa/zygotes between the oviduct and uterus
isthmus
becomes narrow so the egg becomes stuck
ampulla
widening area where the oocyte goes after the infundibulum
ampullary-isthmis Junction
site of fertilization
Infundibulum
where the oocyte first enter into the oviduct
Fimbria
cover the ovary to pick up the egg when ovulating
Graafian Follicle
produce estrogen, final stage of follicle development, right before ovulation
Corpus Luteum
produces progesterone
Corpus Albicans
The corpus albicans is a remnant of ovulation and does not produce any hormones. The degradation of the corpus luteum into the corpus albicans causes a drop in estrogen and progesterone levels, which leads to menstruation.
Stigma (poultry)
where the yolk will rupture
Infundibulum (poultry)
egg pickup and fertilization
magnum (poultry)
albumen secretion
Isthmus (poultry)
formation of shell membranes
Uterus (poultry)
formation of shell
Cloaca (poultry)
exit for the egg (and feces) and where sperm enters
leydig cells
produce testosterone
stereocilia (function and location)
- head of the epidiymis
- fluid absorption
acidophils
cells that secrete growth hormone (GH) and prolactin, red
basophils
cells that produce FSH and LH, purple
granulosa cells
convert testosterone to estrogen to produce estrogen
theca interna
secrete testosterone
antrum
fluid filled cavity in the follicle
oocyte
female gamete
zona pellucida
glycoprotein layer on the outside of the oocyte for protection
