What you may not know is, turkeys (like most avian species) have BARORECEPTORS. What fun, allows us to apply some PHYS! Assuming blood pressure regulation by aortic baroreceptors in birds is operationally similar to what we see in humans (it is), how would Tom the Turkey's hemorrhage be expected to IMMEDIATELY affect the activity of his baroreceptors?
a. Tom's baroreceptors would increase their rate of firing to all medullary cardiovascular center cell types.
b. Tom's baroreceptors would increase their rate of firing to cells in his medulla oblongata (i.e. the Cardiovascular Control Center). In turn, this would cause an increased sympathetic discharge to his heart and an increased parasympathetic discharge to his veins and arterioles.
c. Tom's baroreceptors would decrease their rate of firing to cells in his medulla oblongata (i.e. the Cardiovascular Control Center). In turn, this would cause an increased sympathetic discharge to his heart as well as to his veins and arterioles.
d. Tom's baroreceptors would decrease their rate of firing to cells in his medulla oblongata (i.e. the Cardiovascular Control Center). In turn, this would cause an increased parasympathetic discharge to his heart and an increased sympathetic discharge to both his veins and his arterioles.
e. A hemorrhage would not affect the activity of Tom's barorecepto
Answer: c. Tom's baroreceptors would decrease their rate of firing to cells in his medulla oblongata (i.e. the Cardiovascular Control Center). In turn, this would cause an increased sympathetic discharge to his heart as well as to his veins and arterioles.
You might also like to view...
Secretion of glucagon causes
A. an increase in glycogen. B. an increase in the permeability of the cell membrane to glucose. C. an increase in the formation of fat. D. an increase in the concentration of blood glucose.
The cells in this layer of epidermis are dead, and their flat, scale-like remnants are filled with keratin
A) stratum granulosum B) stratum spinosum C) stratum corneum D) stratum basale
If excess hydrogen ions are added to the blood, the body will respond with
A. increased respiration and increased reabsorption of bicarbonate ions. B. decreased respiration and increased reabsorption of hydrogen ions. C. increased respiration and increased excretion of bicarbonate ions. D. decreased respiration and decreased excretion of hydrogen ions.
Caffeine and unsweetened chocolate both taste bitter, as they are
A. alkaloids. B. amino acids. C. acids. D. carbohydrates. E. ions of heavy molecular weight.