week 2

Question 1

role of respiration

Answer 1

provide O to tissues / remove CO2 from tissues

Question 2

respiration has 4 major events.
1) _______ or exchange of O & CO2 btw ___ & ____
2) lungs ->
3) transport
4) of ventilation

Answer 2

pulmonary ventilation / atmosphere / lungs
their diffusion btw lungs & blood
transport in blood to tissues
regulation

Question 3

why is diffusion of O & CO2 btw lungs and blood the limiting factor?

Answer 3

determine how long u can exercise

Question 4

what is the effect of PA to CV?

to muscles

Answer 4

end result of CV during exercise is to deliver O & other nutr (glucose & ama) to muscle

Question 5

why does muscle blood flow drastically ___ during exericse?

Answer 5

<
bcs of factors in the muscles themselves, & < in MAP mean arterial P

Question 6

higher MAP,
=> vessel sensitivity & reactivity is key

Answer 6

stronger force blood is pushed through vessles, swells to > resistance

Question 7

__ muscle work output, ___
which menas

Answer 7

higher / higher O consumption
more venous return, more cardiac output = amnt of blood tha u pump

Question 8

what is the adaptaion w/ training to CV?

more blood pumped OUT of heart

Answer 8

potentially more heart mass
resting cardiac output remais similar to normal person bt higher stroke vol at a lower heart rate
=? do more at a slower work rate. LONGEVITY

Question 9

what is metabolic health benefits?
HDL / trig / LDL

Answer 9

better insulin sensitivity, BP (at a lower intensity), better blood lipids
< hdl > trig > LDL after lottsss of exercise