P1 21. The short term effects of exercise on the muscular system

Question 1

what is lactic acid

Answer 1

a by product formed when the body is exercising anaerobically at a high intensity

Question 2

what is muscle fatigue

Answer 2

a reduction in the ability of a muscle to produce force

Question 3

what is lactate accumulation

Answer 3

lactic acid builds up resulting in muscle fatigue

Question 4

what happens when muscles work aerobically

Answer 4

lactic acid production will be low

Question 5

what happens if an activity involves anaerobic respiration

Answer 5

lactic acid will accumulate quickly

Question 6

what is oxygen debt

Answer 6

a temporary oxygen shortage in the body arising from exercising
the heart rate stays high so that oxygen can be repaid to working muscles

Question 7

why does oxygen debt occur

Answer 7

created when muscles work aerobically
your cardiovascular and respiratory system continue to work hard to repay the debt and replenish our muscles with oxygen
respiratory and cardiac values stay high

blood continues to be directed to working muscles
values return to resting levels when the body slowly recovers