Lab Practical - Functions

Question 1

Tunica Dartos Muscle

Answer 1

can increase or decrease surface area around the testes for thermoregulation

Question 2

Visceral Vaginal Tunic

Answer 2

layer that covers the testicle

Question 3

Parietal Vaginal Tunic

Answer 3

layer under the scrotum, between the scrotum and the testicle

Question 4

Seminiferous Tubules

Answer 4

produce sperm

Question 5

Rete Testis

Answer 5

network of collecting tubules

Question 6

Head (caput) of Epididymis

Answer 6

sperm is moved here, not motile yet, stereocilia are used for fluid absorption

Question 7

Body (corpus) of Epididymis

Answer 7

transportation and maturation occur

Question 8

Tail (cauda) of Epididymis

Answer 8

sperm are matured and concentrated here for storage

Question 9

Vas Deferens

Answer 9

transport sperm into the body

Question 10

Cremaster Muscle

Answer 10

can contract to pull the testicles close to the body for thermoregulation

Question 11

Pampiniform Plexus

Answer 11

vessels that surround the artery to cool the blood

Question 12

Vesicular Gland / Seminal Vesicles

Answer 12

produce fluid for semen

Question 13

Prostate Gland

Answer 13

produce fluid for semen

Question 14

Bulbourethral / Cowpers Gland

Answer 14

produce fluid for semen

Question 15

Urethralis Muscle

Answer 15

forces release of seminal fluid during ejaculation as well as emptying of the last vestiges of urine during urination

Question 16

Ischiocavernosus Muscle

Answer 16

contracts to close the crura and stop venous return

Question 17

crura

Answer 17

carries blood return from the penis

Question 18

Bulbospongiosus Muscle

Answer 18

helping to expel semen during ejaculation and empty the urethra

Question 19

Retractor Penis Muscle

Answer 19

contracts to retract the penis into the sheath and relaxes to allow the penis to extend from the sheath

Question 20

Collicilus Seminalis

Answer 20

site where sperm mixes with fluid to become semen

Question 21

Sigmoid Flexure

Answer 21

the shape of the penis held inside the sheath

Question 22

Urethra

Answer 22

allows urine to leave the body

Question 23

Corpus Cavernosum

Answer 23

filled with blood to become rigid

Question 24

Corpus Spongiosum

Answer 24

surrounds the urethra

Question 25

Erection Canals

Answer 25

blood flow through the penis

Question 26

Glans Penis

Answer 26

the tip of the penis, can be various shapes

Question 27

Broad Ligament

Answer 27

support for structures in the female reproductive tract

Question 28

Mesometrium

Answer 28

attached to the uterus, to give support

Question 29

Mesosalpinx

Answer 29

attached to the oviduct, to give support

Question 30

Mesovarium

Answer 30

attached to the ovary, to give support

Question 31

Vulva

Answer 31

protects the internal reproductive organs from injury and infectious organisms

Question 32

Vestibule

Answer 32

has vestibular glands that produce fluid for lubrication

Question 33

Suburethral Diverticulum

Answer 33

a blind sac located below the opening of the urethra in the vestibule of the reproductive tract

Question 34

Fornix Vagina (cow)

Answer 34

blind sac near the cervix

Question 35

which animal: annular/cervical rings

Answer 35

cow

Question 36

which animal: interdigitating pads

Answer 36

sow

Question 37

caruncles (cow)

Answer 37

forms the placenta

Question 38

uterotubual junction

Answer 38

connects the uterine horn to the oviduct, controls the movement of spermatozoa/zygotes between the oviduct and uterus

Question 39

isthmus

Answer 39

becomes narrow so the egg becomes stuck

Question 40

ampulla

Answer 40

widening area where the oocyte goes after the infundibulum

Question 41

ampullary-isthmis Junction

Answer 41

site of fertilization

Question 42

Infundibulum

Answer 42

where the oocyte first enter into the oviduct

Question 43

Fimbria

Answer 43

cover the ovary to pick up the egg when ovulating

Question 44

Graafian Follicle

Answer 44

produce estrogen, final stage of follicle development, right before ovulation

Question 45

Corpus Luteum

Answer 45

produces progesterone

Question 46

Corpus Albicans

Answer 46

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.

Question 47

Stigma (poultry)

Answer 47

where the yolk will rupture

Question 48

Infundibulum (poultry)

Answer 48

egg pickup and fertilization

Question 49

magnum (poultry)

Answer 49

albumen secretion

Question 50

Isthmus (poultry)

Answer 50

formation of shell membranes

Question 51

Uterus (poultry)

Answer 51

formation of shell

Question 52

Cloaca (poultry)

Answer 52

exit for the egg (and feces) and where sperm enters

Question 53

leydig cells

Answer 53

produce testosterone

Question 54

stereocilia (function and location)

Answer 54

- head of the epidiymis - fluid absorption

Question 55

acidophils

Answer 55

cells that secrete growth hormone (GH) and prolactin, red

Question 56

basophils

Answer 56

cells that produce FSH and LH, purple

Question 57

granulosa cells

Answer 57

convert testosterone to estrogen to produce estrogen

Question 58

theca interna

Answer 58

secrete testosterone

Question 59

antrum

Answer 59

fluid filled cavity in the follicle

Question 60

oocyte

Answer 60

female gamete

Question 61

zona pellucida

Answer 61

glycoprotein layer on the outside of the oocyte for protection