Lecture 1 block 2

Question 1

what is differential heating of the earth caused by

Answer 1

surface area and atmosphere

Question 2

how does surface area affect differential heating of the earth

Answer 2

total SA is higher at higher latitudes, higher SA leads to lower radiant energy

Question 3

how does atmosphere affect differential heating of the earth

Answer 3

energy gets filtered through thicker atmosphere layer at higher altitudes

Question 4

where are clockwise currents located

Answer 4

northern hemisphere

Question 5

where are counterclockwise currents located

Answer 5

southern hemisphere

Question 6

what does ADH do

Answer 6

conserves water at the kidney and decreases sweating which will have negative effect on thermoregulation

Question 7

what is there renin-angiotensin-aldosterone pathway

Answer 7

aldosterone will increase sodium and water reabsorption at the kidney in an effort to increase blood volume. angiotensin II will cause vasoconstriction of arterioles in an effort to increase BP

Question 8

what do epinephrine and norepinephrine do

Answer 8

help mobilize fuels needed for exercise and increase heart rate and contractility

Question 9

what does cortisol do

Answer 9

it is released in response to long duration of exercise and stress. stimulates gluconeogenesis in the liver to maintain blood glucose levels during long duration exercise and lipolysis to provide an alternate fuel and spare glucose