ANSC 462 Final Exam Mishra

Which statement is true regarding protein and steroid? A. Steroid hormones bind to plasm membrane whereas protein hormones mostly bind to nuclear receptors B. Protein hormones bind to plasma membrane receptor whereas steroid hormones mostly bind to nuclear receptors.

B.

In the laying hen oviduct, how long does it take to form a complete egg? A. 15-20 hours B. 24-29 hours C. 30-40 hours

B. 24-29 hours

During pregnancy in cow, how many placentomes are formed in the placenta? A. 200-220 B. 70-120 C. 1-10 D. None of above

B. 70-120

Ruminants trophoblast consists of mononucleated and binucleated cells. Which of these cells attach with maternal endometrium? A. Mononucleated cells B. Binucleated cells C. Both

B. Binucleated

Which of the following hormone Stimulates female sexual behavior during estrus in cattle? A. Progesterone B. Estradiol C. Prostaglandins D. Oxytocin

B. Estradiol

At which stage of the estrous cycle, the female permits the male to mount/mate her? A. Proestrus B. Estrus C. Metestrus D. Diestrus

B. Estrus

At which stage of estrous cycle, the dominant follicles secrete massive amounts of estrogens? A. Proestrus B. Estrus C. Metestrus D. Diestrus

A. Proestrus

During diestrus____ A. progesterone is high. B. ovulation occurs in the cow. C. endometrial glands begin to grow. D. estrogen levels peak.

A. Progesteron is high

A successful pregnancy in cow requires maintenance of high blood____ A. Progesterone B. Estradiol

A. Progesterone

Which of the following hormone inhibits secretion of LH during the luteal phase and during pregnancy in the sheep? A. Progesterone B. Estradiol C. Prostaglandins D. Oxytocin

A. Progesterone

Which of the following hormone prevents uterine contractions and maintains uterine quiescence during pregnancy? A. Progesterone B. Estradiol C. Prostaglandins D. Oxytocin

A. Progesterone

During pregnancy, while progesterone is elevated, the hypothalamic surge and tonic centers are shut down and the animals do not cycle. A. True B. False

A. True

Egg binding occurs mainly during the winter season. A. True B. False

B. False

The binuclear giant cells of the bovine placenta produce __________. A. Placental lactogen B. Pregnancy specific protein B C. (a and b) D. Prostaglandin E. All of the above

C. (a and b)

Hormonal potency is influenced by ___ A. Receptor density B. hormone receptor affinity C. both (a and b)

C. Both

Which of the following mucin secreted from the cervix are low in viscosity and help in the forward movement of spermatozoa? A. Sialomucin B. Sulfomucin C. Both (and b)

C. Both

A regionalized disc of chorionic villi, usually highly invasive, found in women is known as______. A. Diffuse B. Zonary C. Discoid

C. Discoid

Ovulate follicles in hen does not transform to corpus luteum A. True B. False

A. True

Which of the following is not an example of a glycoprotein hormone? A. FSH and LH B. Inhibin and follistatin C. GnRH and Prolaction

C. GnRH and Prolactin

The rod should be removed swiftly from the reproductive tract to avoid losing any of the semen. A. True B. False

A. True

Around parturition period, serum progesterone and estradiol level decline significantly. A. True B. False

B. False

Broiler breeder eggs are used for both human consumption and to produce chicks? A. True B. False

B. False

Like semen, embryo needs to transfer in the body of the uterus A. True B. False

B. False

Neosporosis is an infectious disease caused by intracellular bacteria Neospora Caninum. A. True B. False

B. False

Ovarian stimulation using LH causes the development of higher than a lower number of follicles. A. True B. False

B. False

There is no specific treatment for bovine Neosporosis but we can prevent through commercially available vaccines. A. True B. False

B. False

Which of the following have a diffuse placenta? A. Cow B. Sow C. Bitch D. Woman

B. Sow

Do binucleated cells produce Pregnancy Specific Glycoprotein? A. False B. True

B. True

Gender selection of sperm can be accomplished by___ A. the time of insemination B. Use of flow symmetry C. PCR of individual sperm

B. Use of flow symmetry

Antimullerian hormone (AMH) is secreted by which of the following cells? A. Granulosa cells of preantral and early antral follicles B. Corpus luteum C. Theca interna D. Posterior pituitary gland

C. Theca Interna

Which best describes the corpus hemorrhagicum? A. An atretic follicle B. Scar tissue from the regressed corpus luteum C. the remnants of a recently ovulated teritary follicle

C. the remnants of a recently ovulated tertiary follicle

If you diagnose egg binding in a commercial laying hen what will you suggest to farm owner? A. hysterectomy B. Postmortem examination C. Euthanasia D. All of the above

D. All of the above

What type of uterus has two separate cervices? Simplex Bicornuate Bipartite Duplex

Duplex

The extraembryonic membranes of the Preattachment embryo consist of _______. A. Yolk sac B. Amnion C. Allantois D. Chorion E. All of the above

E. All of the Above

The fallopian tube is another name for the vagina uterus oviduct cervix

Oviduct

Which of the following hormones can be used to induce partuition? Progesteron estradiol oxytocin Estradiol plus prostaglandins

Oxytocin

Which of the following species have polyestrus estrous cycles throughout the year? A. bovine B. ovine C. mare D. dog

A. Bovine

Cow's endometrium consists of caruncles and intercaruncles endometrium. Implantation of embryo takes place in _______. A. Caruncles B. Intercaruncles C. Both

A. Caruncles

At parturition, due to stress on the fetus usually caused by increased nutritional demands and placental insufficiency, maternal corticosteroid hormones (cortisol) initiate the process of parturition. A. False B. True

A. False

Hatching of the bovine blastocyst occurs in the oviduct close to the uterine horn. A. False B. True

A. False

In mammals, the extraembryonic membrane, the yolk sac, completely surrounds the developing embryo and serves as a fluid-filled, protective cushion or shock absorber. A. False B. True

A. False

While doing AI in sow using spirette-type catheters, turn the instrument clockwise until it locks into the cervix; to remove the spirette, turn it counter-clockwise while gently pulling outward. A. False B. True

A. False

Fertilization of hen takes place in which oviduct? A. Infundibulum B. Magnum C. Uterus D. Vagina

A. Infundibulum

Which hormone is NOT secreted by the adenohypophysis (anterior pituitary)? A. Oxytocin B. Luteinizing Hormone C. Follicle Stimulating Hormone D. Growth Hormone

A. Oxytocin

Grade A oocyte consists of cumuls-complexes (COCs) with an unexplained cumulus mass having more than four layers of cumulus cells. A. True B. False

A. True

Estrus cycle in sow lasts for ____ days and the gestation cycle lasts ____ days.

21 days for estrus cycle and 114 days for gestation cycle.

Going from exterior to interior which sequence is correct? A. vulva, cervix, oviduct, ovary B. vagina, cervix, oviduct, uterus

A

Ovulation of the next egg occurs about what time after oviposition of the previous egg? A. 30-40 min B. 1-2 hours C. 3-4 hours

A. 30-40 min

Increased serum concentration of progesterone inhibits... GnRH secretion FSH and LH Both

Both

What is the second messenger to mediate hormonal actions? cAMP Calcium Both

Both

With age, which of the following hormones concentration increase in male? A. Estradiol and progesterone B. AMH and FSH C. FSH and LH D. LH and inhibin

C. FSH and LH

At which stage of the estrous cycle, you can find the corpus hemorrhagicum on the ovary? A. Proestrus B. Estrus C. Metestrus D. Diestrus

C. Metestrus

During Artificial Insemination in cow, semen is deposited into the________. A. Right or left uterine horn B. Cervix C. Vagina D. Body of the uterus

D. Body of the uterus

In response to fetal stress at the end of gestation, which of the following fetal hormone initiate the cascade of parturition? A. Oxytocin B. PGF2α C. Estradiol D. Cortisol

D. Cortisol

At which stage of the estrous cycle, progesterone is inhibiting the release of GnRH from the hypothalamus? A. Proestrus B. Estrus C. Metestrus D. Diestrus

D. Diestrus

At which stage of the estrous cycle, the corpus luteum is fully functional and producing progesterone? A. Proestrus B. Estrus C. Metestrus D. Diestrus

D. Diestrus

Eggshell membrane synthesis takes place where? A. Infundibulum B. Magnum C, Uterus D. Isthmus

D. Isthmus

Which of the following is not the role of cortisol during parturition? A. Induces formation of surfactant in the fetal lung. B. Induces glycogen formation in the fetal liver. C. Causing the fetal thyroid to release its hormones and increase fetal metabolism. D. Stimulates the conversion of estradiol to progesterone in the placentomes.

D. Stimulates the conversion of estradiol to progesterone in the placentomes

Which of the following structure is common in both Fetal and adult circulation? A. Ductus venosus B. Ductus arteriosus C. Foramen ovale D. Vena cava

D. Vena Cava

After an egg is fertilized, it will implant in the ____ for further development Endometrium Myometrium Perimetrium

Endometrium

After the onset of puberty in female, there is several LH surges within a cycle. True False

False

For prostaglandin hormone receptor is present in plasma and nuclear membrane True or false

False

In the female, surge center develops right before the animal reaches puberty. True False

False

Which of the following ligaments anchors the ovary to the pelvic wall? Suspensory Round Ovarian

Suspensory

Which type of ovarian follicle is most likely to ovulate? Primordial follicle primary follicle secondary follicle Tertiary follicle

Tertiary

The function of the amuplla is to direct the recently ovulated oocyte directly into the oviduct True False

True

hypothalamo-hypophyseal portal system carries hypothalmic hormones specifically to the anterior pituitary after diluation in the systemic blood. True False

True

Capacitation factors can originate from which of the following? A. Uterus and oviduct B. accessory gland fluid C. Cervical mucus D. Epididymis

Uterus and Oviduct

What type of uterus is present in the sow? Duplex bicornuate simplex bipartite

biocornuate

After an egg is ovulated, the remaining follicular mass is called a ____ antral follicle corpus luteum theca folliculi

corpus luteum

The "egg hill" found in the teritary follicles is also known as the ___ zona pellucida corpus luteum corona radiata cumulus oophorus

cumulus oophorus

The section of the broad ligament that suspends the uterus is the myometrium mesometrium mesoovarium mesosalpinx

mesoovarium

Where does fertilization take place in the cow? Antral follicle corpus luteum oviduct uterine horn

oviduct

What uterus has a uterine body without any uterine horns? simplex bicornuate bipartite

simplex

Which is NOT among the primary functions of the uterus? Sperm transport expulsion of the fetus and fetal placenta stimulation of sperm motility

stimulation of sperm motility