Vet Tech: Quiz 23 The Reproductive System

The thin membrane that is tightly adhered to each testis and the structures of the spermatic cord is the

visceral vaginal tunic

When engorged, the erectile tissue of the penis is filled with

blood

If the diploid chromosome number of an animal is 38 (cat), what is the diploid number of its offspring?

38

The first stage a follicle goes through after ovulation is the

corpus hemorrhagicum

The only accessory reproductive gland in canines is the

prostate gland

The diploid chromosome number is always

an even number

The scrotum is a

sac of skin

The granulosa cells in a developing follicle

produce estrogen

One of the typical clinical signs of a Sertoli cell tumor may be

gynecomastia

If no pregnancy begins during an estrous cycle, when does the corpus luteum degenerate?

late diestrus

Most of the erectile tissue is found in the __ of the penis.

body

Which accessory reproductive gland secretes a mucinous fluid that lubricates the urethra for passage of semen?

bulbourethral gland

On average, how often are oocytes replaced in the ovaries?

never

If fertilization is going to happen, where must the spermatozoa be when ovulation takes place?

oviduct

The tail of the spermatozoa is used for

propulsion

The tube that receives the penis during breeding is the

vagina

The only portion of the female reproductive system that is visible from the outside is the

vulva

The corpus hemorrhagicum is formed under the influence of

LH

Many sensory nerve endings are found in the __ of the penis.

glans

The majority of the volume of semen is composed of

alkaline secretions from accessory reproductive glands

The structure that connects the testes to the rest of the body is the

spermatic cord

The finger-like projections that make sure the mature female gamete gets caught when it is ovulated are the

fimbriae

Which two hormones are produced in the ovary?

estrogen and progestins

In order to fully descend, the testes must pass through the

inguinal ring

Which species is an induced ovulator?

feline

A Sertoli cell tumor can produce high blood levels of

estrogen

What do the primary endocrine cells of the testes produce?

androgens

Inside a mature follicle an oocyte sits on a mound of cells called the

cumulus oophorus

The female gametes are

ova

Which hormone produced by the ovary prepares the uterus for implantation and pregnancy?

progesterone

The sigmoid flexure of the penis is characteristic of all of these animals below except the

stallion

Which animal is seasonally polyestrous?

feline queen

Which species of animal has an os penis?

canine

The 'nurse' cells to young spermatids are the

Sertoli cells

The cervix is located between the

uterine body and the vagina

The full diploid chromosome makeup of a male animal is

2n,XY

Another name for the capsule of the testis is the

tunica albuginea

The female reproductive organs are suspended from the dorsal part of the abdominal wall by the

broad ligaments

The timing for breeding is controlled by the

estrous cycle

Which animal is diestrous?

canine bitch

The septa from the __ extend into the soft tissue of the testis, dividing each testis into tiny lobules.

tunica albuginea

Erectile tissue is composed of

fibrous connective tissue and sinuses

Ovulation occurs spontaneously in which of the following species?

dogs and horses

The species of animals that 'tie' after the male has ejaculated is the

canine

The best way to 'untie' a male and female after the male has ejaculated is to

do nothing until it happens naturally

The two portions of the male urethra are the

pelvic and penile portions

Where is the nucleus of the spermatozoa located?

head

The gubernaculum is a

band of connective tissue

Spermatogenesis takes place in the

seminiferous tubules

The male gonads are the

testes

During which stage of the estrus cycle can dogs develop a pseudopregnancy?

diestrus

When a cell undergoes mitosis, each daughter cell will have __ of chromosomes as the parent cell.

the same number

Follicular activation is under the influence of

FSH from the pituitary gland

The thickest layer of the uterus is made up of

smooth muscle

The primary endocrine cells of the testes are the

interstitial cells

What structure adjusts the position of the testes relative to the body according to the environmental temperature?

cremaster muscle

Which part of the spermatozoa contains the most mitochondria?

midpiece

Meiosis occurs

only in reproductive cells

What female part is equivalent to the male penis?

clitoris

The corpus luteum produces which hormone that is necessary for pregnancy to be maintained if fertilization takes place?

progesterone

During which stage of the estrous cycle do estrogen levels reach their peak?

estrus

The rising level of which hormone induces spontaneous ovulation?

LH

A uniparous animal

gives birth to one offspring per pregnancy

In the dog, the cytology of the epithelial lining of the __ can be utilized to determine the most effective time to breed a bitch.

vagina

The corpus cavernosum penis is located

dorsal to the urethra

Which part of the spermatozoa contains digestive enzymes?

acrosome

Which species of animal has short spines covering the glans of the penis?

feline

Which hormone produced by the ovary is responsible for preparing a female for breeding and pregnancy?

FSH

The maturation and storage site for the immature spermatozoa is the

epididymis

The vas deferens is a continuation of the

tail of the epididymis

The pampiniform plexus is formed from

veins

If the diploid chromosome number for an animal is 44 (rabbit), what is the haploid number of its gametes?

22

The female gonads are the

ovaries

Which two hormones are directly responsible for the physical and behavioral changes that are associated with a female in heat?

estrogen and progestins

The bands that attach the penis to the pelvis are the

crura

The estrous cycle is controlled by

anterior pituitary hormones

Which animal is a polyestrous animal?

bovine (cow)

The usual site for fertilization of a mature female gamete by a mature male gamete is in the

oviduct

Most of the volume of a mature follicle is made up of the fluid-filled

antrum

Which hormone stimulates the primary endocrine cells of the testes?

LH

Cowper"s glands are another name for the

bulbourethral gland

Gamete meiosis results in each daughter cell having __ the number of chromosomes as the parent cell.

one half

Which animals don"t have seminal vesicles?

dogs and cats

What two structures does the vas deferens connect?

urethra and epididymis