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Mother & Neonate
Practice Quiz

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This is a sample of a quiz on the Resource pages of the Mother & Neonate Module. Print is out and use it to help you study the material.


1. Which hormone in the maternal blood of a pregnant animal starts declining a few of days prior to parturition in most species?

  1. estrogen
  2. glucocorticoids
  3. progesterone
  4. prolactin
  5. thyroid hormone

 

2. How does the immunoglobulin concentration of the colostrum from a cow that has calved for the first time differ from a cow that has calved three times previously?

  1. it usually is lower
  2. it usually is the same
  3. it usually is higher
  4. there is no colostrum produced at the first lactation

 

3. When does the synthesis of alpha-lactalbumin begin in the mammary gland?

  1. either just before or just after parturition
  2. throughout the last third of pregnancy
  3. only after lactation is initiated
  4. throughout pregnancy
  5. seven days postpartum

 

4. Each mammary gland on an animal is somewhat independent in its response to lactogenic stimuli. This is seen in a Tammar Wallaby where only the gland which is nursed undergoes substantial lactogenesis. As that joey grows and the mother gives birth to another joey, the second joey can successfully nurse another gland which undergoes lactogenesis at that time. The mother then maintains two lactating glands which have undergone lactogenesis at different times. This is one example of which of the following?

  1. the inhibitory effect of progesterone on lactogenesis
  2. the effects of blood prolactin on lactogenesis
  3. the effects of insulin secretion on lactogenesis
  4. the effects of local mammary factors in controlling lactogenesis

 

5. Transport of immunoglobulins through the intestinal cells of the neonatal calf and into the blood occurs by which mechanism?

  1. only after digestion of the immunoglobulins
  2. by a nonselective absorption process
  3. by secretory vesicles
  4. by a selective absorption process
  5. by osmosis

 

6. What effect would injection of bromocriptine during late gestation have on lactogenesis in a rat?

  1. lactogenesis would by enhanced because of the increased prolactin secretion
  2. lactogenesis would by enhanced because of the decline in insulin secretion
  3. lactogenesis would not be affected
  4. lactogenesis would be inhibited

 

7. Milk contains many factors that may have biological activities when consumed by the neonate. Which of the following is NOT an example of a bioactive factor found in milk?

  1. Melatonin
  2. Luteinizing hormone
  3. Thyroid hormone stimulating hormone
  4. IGF-II
  5. Asparagus
  6. Parathyroid hormone-like peptide

 

8. Mammary tissue from a mid-pregnant animal is most often used to study lactogenesis and the factors which control lactogenesis in an in vitro tissue culture system. The minimal combination of hormones added to the medium that would probably give the greatest lactogenic response in mammary tissue from a cow is which of the following?

  1. insulin, glucocorticoid and prolactin
  2. insulin, mineralocorticoid and growth hormone
  3. glucocorticoid and prolactin
  4. estrogen and progesterone
  5. IGF-I, insulin and prolactin
  6. insulin and glucocorticoid

 

9. When a neonate consumes colostrum from its mother it is getting passive immunity against particular antigens. The profile of antigen-specificity of the antibodies in a mother's colostrum reflects the antigens to which she has been exposed. The form in which this passive immunity is transferred to the neonate is which of the following?

  1. lymphocytes
  2. primarily immunoglobulin G1
  3. consumption of antigens from colostrum
  4. primarily immunoglobulin M
  5. peptides generated from ß-lactoglobulin
  6. peptides generated from casein

 

10. Which of the following would the calf have in relatively high availability immediately after birth?

  1. They have high pancreatic enzyme activities
  2. They have unlimited stores of glycogen
  3. They have high activities of rennin
  4. They have high immunoglobulin concentrations in their blood
  5. They have high gluconeogenic activity

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