question 2

200-250 words, reference, original work

2. While Dick and Jane were backpacking on a trail in Yellowstone Park, they encountered a grizzly bear cub that seemed amazingly tame. However, while Dick tried to feed the cub, its mother appeared and attacked him. Jane escaped by climbing a tree, but Dick received several deep lacerations (cuts) and lost a lot of blood over the next several

hours. Jane helped him reach medical aid, and he survived. Which of the following mechanisms was (were) activated to help keep Dick alive? Explain your choice.

(1) baroreceptor mechanism

(2) CNS ischemic response

(3) renin-angiotensin-aldosterone mechanism

(4) fluid shift mechanism

(5) antidiuretic hormone mechanism

(6) adrenal medullary response

a. 1,2,3,4,5,6

b. 1,3,4,5,6

c. 1,6

d. 1,4,6

e. 1