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TLS Online TPP Program

#Question id: 12269

If a woman hears her baby cry, she may experience milk ejection from the nipples even before the baby is placed to the breast. What is the explanation for this?

#Unit 7. System Physiology – Animal
  1. The sound of the hungry baby’s cry elicits secretion of oxytocin from the posterior pituitary, which reaches the breast and causes contraction of the myoepithelial cells
  2. The sound of the hungry baby’s cry causes a reflex relaxation of the myoepithelial cells, allowing the milk to flow
  3. The sound of the hungry baby’s cry elicits a surge of prolactin from the anterior pituitary, which promptly stimulates milk production from the breast
  4. The sound of the hungry baby’s cry elicits sympathetic nervous system discharge that causes contraction of the myoepithelial cells
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TLS Online TPP Program

#Question id: 28451

#Unit 5. Developmental Biology

 Which of the following cell divide to form the central vulval cells?
TLS Online TPP Program

#Question id: 27035

#Unit 10. Ecological Principles

One animal takes food that another has caught, this parasitism based on theft, known as
TLS Online TPP Program

#Question id: 11090

#Unit 7. System Physiology – Animal

An aviator is flying at 30,000 ft where the barometric pressure is 226 mm Hg. He is breathing 100% oxygen, his alveolar PCO2 is 40 mm Hg, and his alveolar water vapor pressure is 47 mm Hg. What is the alveolar PO2 of the aviator (in mm Hg)? (Assume that the respiratory quotient is equal to 1.)
TLS Online TPP Program

#Question id: 31412

#Unit 7. System Physiology – Animal

Which of the following would not be expected to increase renin secretion?
TLS Online TPP Program

#Question id: 20967

#Unit 12. Applied Biology

Transgenic models exist for ________ disease.