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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The layer of the placenta that forms attachment to the uterine wall. |
Chorion |
A. Chorion B. Amnion C. Allantois |
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The umbilical _____ carries waste products away from the fetus, while the umbilical ____ carries nutrients from the placenta to the fetus. |
Artery, vein |
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Once an ovum is fertilized, it is called a ____. |
Zygote |
A. Embryo B. Blastocyst C. Zygote |
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Pigs, horses, and camelids have the ___ type placenta, which is spread loosely across the uterus lining and normally detaches easily after birth. |
Diffuse |
A. Zonary B. Cotyledonary C. Diffuse |
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The ____ type placenta is the most complicated; having multiple small attachment sites called placentomes. |
Cotylendonary |
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The cotyledonary placenta is found in which species? |
Ruminants such as cattle, goats, sheep |
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What is the belt- shaped placental type that occurs in dogs and cats? |
Zonary |
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Humans and other primates, along with rabbits, have what placental type? |
Discoid |
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Spermatozoa undergo what process that allows them to penetrate the ovum? What happens if this does not occur? |
Capacitation. Without it, the enzymes that allow for penetration don't activate = no fertilization |
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Both cats and dogs have an approximate gestation period of how long? |
2 months |
A. 2 months B. 3 months C. 6 months |
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What hormone m, produced in late pregnancy, relaxes the ligaments in the bones pelvic bones. |
Relaxin |
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Which hormone can be given in hospital to stimulate the labor process? |
Oxytocin |
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Why must colostrum be quickly ingested by the newborn in the first few hours after birth? |
After a length of time, the newborn will no longer be able to absorb the colostrum as it is broken down by digestive enzymes. Passive immunity will not be transmitted. |
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Why does mastitis in a cow not spread throughout the entire udder? |
Each mammary gland is an independent system from the others. |
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