Neuromuscular System

Question 1

Type 1 (slow twitch)

Answer 1

Slow contractions
Aerobic
High Myoglobin
High Mitochondria

Question 2

Type 2b (fast twitch Glycolytic)

Answer 2

Very fast contractions
Anaerobic
Low Myoglobin
Low Mitochondria

Question 3

Type 2a (Fast Oxidative Glycolytic fibres)

Answer 3

Fast contractions
Medium Myoglobin
Medium Mitochondria

Question 4

Sympathetic

Answer 4

increase Heart rate
adrenaline
increase breathing rate

Question 5

Parasympathetic

Answer 5

lowers heart rate
acetylcholine
lowers breathing rate

Question 6

motor unit

Answer 6

the motor neurone and muscle fibres stimulated

Question 7

Type of contractions

Answer 7

Wave Summation- new impulse fired before previous one relaxed
Tetanic Contractions- rapid firing of impulses
Spatial Summation- alternating motor units

Question 8

Muscle spindles and Golgi tendons

Answer 8

muscle spindle- detects stretching

golgi tendon- responds to tension

Question 9

PNF

Answer 9

1) passive stretch- detected by muscle spindles
2) isometric contraction- hold for 10seconds tension detected by golgi tendon
3) Relax muscle- then further stretch