Quiz 11

Question 1

When a cow is given the drug Lasix, what is the primary physiological response of the animal?

Answer 1

increased production of urine

Question 2

Olfaction

Answer 2

refers to sense of smell

Question 3

Smegma

Answer 3

accumulation of oils, dead skin cells, and other fluid around the genitals

Question 4

__________ pheromones mark the boundaries and identity of a dog’s claimed area of land

Answer 4

territorial pheromones

Question 5

indicate the recipe for making 6L of physiological saline

Answer 5

6 Liters of distilled water + 54g NaCl

Question 6

Indicate another name for the accessory olfactory system known as the vomeronasal organ (VNO)

Answer 6

Jacobson’s Organ

Question 7

Nulli-, Prima-, vs Multiparous

Answer 7

amount of calves a heifer has had

Question 8

Describe the function of the VNO in all birds

Answer 8

VNO is absent in all birds

Question 9

The _________ response draws air in to the VNO

Answer 9

Flehman

Question 10

Dr. Tim Holt (DVM) of Colorado developed the PAP test. What does it stand for

Answer 10

Pulmonary artery pressure

Question 11

_______________ is the tendency for female rodents to terminate their pregnancies following exposure to the scent of an unfamiliar male

Answer 11

Bruce Effect

Question 12

The ____________ is a biological phenomenon seen in animals, whereby males exhibit renewed sexual interest whenever a female of reproductive availability is introduce

Answer 12

Coolidge Effect

Question 13

What is a CIDR?

Answer 13

Controlled internal drug release device

Question 14

Transuterine migration

Answer 14

when fetuses can move from one uternie horn to the other (ie. swine)

Mice cannot because of cervix

Question 15

2M Female

Answer 15

female that developed with 2 males on either side

1. higher fetal testosterone levels
2. more sensitive to testosterone
3. more aggressive
4. more likely to mount females
5. have a longer anogenital distance
6. mate later
7. have more males

Question 16

Ectopic pregnancy

Answer 16

occurs when a fertilized egg implants and grows outside the main cavity of the uterus (ie. oviduct)

Question 17

Ipsilateral

Answer 17

means the same side

was talked about in reference to give fertilized eggs to another cow

Question 18

Gestation length of swine

Answer 18

114 days

Question 19

Freemartin heifers

Answer 19

an androgenized, sterile heifer born twin to a bull.

Question 20

Likelihood of freemartin heifers

Answer 20

50% chance that twins will be 1M/1F
92% chance that female is sterile

Question 21

What species is twinning bad? Good?

Answer 21

Bad = cows, horses
Good = sheep

Question 22

Retained placenta

Answer 22

when some of the placenta stays in your uterus after your baby is born

Question 23

Attachment of placenta in horses and pigs? In cows?

Answer 23

Diffuse attachment in horses and pigs
Placenta is attached to cow

Question 24

Why is twinning in horses bad?

Answer 24

1. uterus is too small
2. causes birthing complications and abortions
3. rare that both fetuses survive

Question 25

Why is twinning in cows bad?

Answer 25

1. causes retained placenta, decrease in reproductive efficiency and milk production 2. calves that survive have low growth rates 3. can have freemartin heifers

Question 26

Why is twinning in sheep good?

Answer 26

1. sheep are capable of giving birth to healthy twins 2. make money 3. insignificant occurrence of freemartins

Question 27

Photophase vs Scotophase

Answer 27

Photophase = light scotophase = dark

Question 28

Circadian vs circannual:

Answer 28

circadian = day circannual = year

Question 29

Melatonin

Answer 29

primary indoleamine secreted by pineal gland