muscle function

Question 1

what is creatine phosphate

Answer 1

high energy store

Question 2

how long does creatine phosphate last for

Answer 2

~15 seconds

Question 3

what is muscle fatigue

Answer 3

inability to contract forcefully after prolonged activity

Question 4

what are limiting factors, that cause muscle fatigue

Answer 4

Ca2+
creatine phosphate
oxygen
build up of acid
O2
neuronal failure

Question 5

what are the 3 fibre types

Answer 5

slow oxidative
fast oxidative
fast glycolytic

Question 6

describe slow oxidative fibres

Answer 6

small diameter and red
large amounts of myoglobin and mitochondria
ATP production primarily oxidative

Question 7

do slow oxidative fibres get fatigued

Answer 7

fatigue resistant

Question 8

describe fast oxidative fibres

Answer 8

large in diameter = many myofibrils
many mitochondria and high glycolytic capacity

Question 9

describe glycolytic fibres

Answer 9

white, fast and powerful
for strong, short term use

Question 10

do fast glycolytic fibres get fatigued

Answer 10

fast fatiguing

Question 11

what order are muscles recruited

Answer 11

1 SO
2 FO
3 FG

Question 12

name the 2 types of contraction

Answer 12

isotonic
isometric

Question 13

name the 2 types of contraction

Answer 13

isotonic
isometric

Question 14

describe a isotonic contraction

Answer 14

if force is constant and the muscle shortens

Question 15

describe an isometric contraction

Answer 15

length is constant and the force varies