muscular system part 3

Question 1

what are the three types of muscle contraction

Answer 1

concentric, eccentric and isometric

Question 2

what happen when concentric contractions occur

Answer 2

muscle contracts and shortens, joint movement occurs

Question 3

what happens when eccentric contractions occur

Answer 3

muscle contracts and lengthens, joint movement occurs

Question 4

what happens when isometric contractions occur

Answer 4

muscle contracts with no change in muscle length

Question 5

what are the two muscle classifications

Answer 5

slow twitch and fast twitch muscles

Question 6

identify colour, contraction speed, energy system, type of activity and resistance to fatigue in muscle type 1

Answer 6

red
slow
aerobic- with o2
marathon
high

Question 7

identify colour, contractions speed, energy system, the of activity and resistance to fatigue of muscle type 2a

Answer 7

red
intermediate
both
middle distance
intermediate

Question 8

identify colour, contraction speed, energy system, type of activity and resistance to fatigue of muscle type 2b

Answer 8

white
fast
anaerobic- without o2
sprint
low

Question 9

function of a dendrite

Answer 9

collects signal

Question 10

function of axon

Answer 10

passes signals

Question 11

function of myelin sheath

Answer 11

allows signal to travel quickly

Question 12

what does precise movement contain

Answer 12

many motor units controlling fewer muscle fibres

Question 13

what does gross movement contain

Answer 13

fewer motor units controlling many muscle fibres