Quiz 2 (Exam 1)

Question 1

Pampiniform plexus definition:

Answer 1

vascular structure consisting of intimately intertwined arteries and veins.

Question 2

Spermatic artery:

Answer 2

leaves the body and enters the spermatic cord as an uncoiled vessel and as it nears the testis it becomes highly coiled and intertwined with a network of veins.

Question 3

When the temperature of the testis are too high:

Answer 3

speratogenesis ceases, however androgen production still occurs.

Question 4

Pronephros:

Answer 4

a nonfunctional remnant of a primitive kidney which regresses and is replaced by a functional bilateral pair of intermediate kidneys known as the mesonephros.

Question 5

Mesonephros function:

Answer 5

produces urine.

Question 6

Mesonephros drain urine by:

Answer 6

mesonephric tubules of Woffian ducts. (bilateral pair)

Question 7

Developing a new pair or ducts by the mesonnephros called:

Answer 7

Mullerian ducts

Question 8

nephros means:

Answer 8

Kidneys

Question 9

When is sexual differentiation determined:

Answer 9

When testis determining factor(TDF) is synthesized by the sex cords, this is when the male repro system is stimulated.

Question 10

What five things are needed to make male genitilia

Answer 10

Testie, testostorone, y chromosome, sertoli cells, and anti-Mullerian duct hormone.

Question 11

Mesonephric ducts in the male give rise to the:

Answer 11

Rete testis, efferent ducts, epididymis, and vas deferens.

Question 12

Testis secrete this homorne so female genitals do the develop:

Answer 12

Anti-Mullerian duct hormone(AMH)

Question 13

Spermatozoa are made in(1st):

Answer 13

seminiferous tubules

Question 14

From the seminiferous tubules, spermatozoa empty to(2nd):

Answer 14

rete testies

Question 15

Rete testis joins the(3rd):

Answer 15

efferent duct

Question 16

Efferent duct empties into the(4th):

Answer 16

head of the epididymis

Question 17

Spermatozoa travel from the head of the epidiymis to(5th):

Answer 17

to the body of the epididymis

Question 18

From the body of the epididymis to the(6th):

Answer 18

tail of the epididymis

Question 19

From the tail of the epididymis spermatozoa travels to(7th):

Answer 19

ductus deferns

Question 20

The ductus deferns enlarges in the pelvic region into(8th):

Answer 20

ampullae

Question 21

What glands follow the ampullae(9th)?

Answer 21

vesicular glands

Question 22

Vesicular glands empty into the (10th, 11th, and 12th):

Answer 22

pelvic urethra–prostate gland–bulbourethral glands

Question 23

Three parts of the broad ligament, and what they support:

Answer 23

mesovarium- suports the ovary
mesosalpinx- supports the oviduct
mesometrium- supports the uterus

Question 24

In cattle and sheep the attachment of the broad ligament is ___________ in the region of the ileum.

Answer 24

dorsolateral

Question 25

Are the Wolffian and Mullerian ducts present in the undifferentiated embryo?

Answer 25

yes

Question 26

Mullerian ducts develop into:

Answer 26

gonadoductal system and wolffian ducts regress. Mullerian ducts fuse to form uterus, cervix, and anterior part of the vagina.

Question 27

Ovary performs ______ and ______ functions, with the primart tissue being the _______ _______.

Answer 27

exocrine
endocrine
ovarian cortex

Question 28

Ovaries produce(hormones):

Answer 28

Ova, estrogen, progesterone, oxytocin, activin and relaxin.

Question 29

Ovary has an outer connective tissue layer called:

Answer 29

tunica albuginea

Question 30

the ______ ________ is beneath the tunica albuginea.

Answer 30

ovarian cortex

Question 31

Central part of the ovary is called:

except which species, these are switched.

Answer 31

medulla

Mare

Question 32

Ovulation in the mare occurs at only one poinnt:

Answer 32

the ovulation fossa

Question 33

In cows, ewes, and sows, ovulation can occur:

Answer 33

at random locations on the ovaries

Question 34

During fetal develoopment oogonia are produced by:

Answer 34

mitotic division

Question 35

oogonia go through the first meiotic division to form several million oocytes and this process is arrested in:

Answer 35

prophase

Question 36

Atresia:

Answer 36

reduces the number of oocytes at the timme of birth, and a further reduction occurs at puberty.

Question 37

At birth a layer of follicular cells surrounds the primary oocyte to form the:

Answer 37

primordial follicle

Question 38

Characteristics of a primary follicle:

Answer 38

oocyte surrounded by one layer of granulosa cells.

Question 39

Characteristics of secondary follicle:

Answer 39

Oocyte surrounded by two layers of granulosa cells, with zona pellucida.

Question 40

Characteristics of tertiary follicle:

Answer 40

Oocyte surrounded by two or more layers, with an antrum

Question 41

Tertiary follicle can become The dominant preovulatory follicle called:

Answer 41

Graffian follicle

Question 42

Inner cells by antrum are called:
External cells by antrum are called:
and functions!

Answer 42

theca internal- responds to hormonones: LH and adrogens

theca externa- surrounds and supports

Question 43

Layers next to antrum:

Answer 43

Basement membrane
granulosa cells
theca interna
theca externa

Question 44

What holds the oocyte in the antrum?

Answer 44

cumulus oophorus

Question 45

When the dominant follicle ovulates, what happens?

Answer 45

Small blood vessels rupture, causing local hemerage. the teca and granulosa cells are pushed to the apex of the follicle.

Question 46

After ovulation, what is the sturcture called now?

Answer 46

Corpus hemorrhagicum

Question 47

After the theca and granulosa cells are pushed up, they differentiate into _______ cells to for:

Answer 47

luteal

corpus luteum: produces progesterone

Question 48

If fertilization does not occur the _____ _______ regresses and allows other _______ _______ to mature. What color does it turn, and is called:

Answer 48

corpus luteum
ovarian follicles
white or pale brown—called corpus albicans