Types of muscle fibres

Question 1

What are the two types of muscle fibres

Answer 1

slow and fast fibres

Question 2

Describe fast fibres

Answer 2

Make up majority of muscle fibres
rapid movement reach max force quickly, fatigue quickly
Few mitochondria
Powerful contraction but best for short term activities

Question 3

Describe slow fibres

Answer 3

small diameter
takes longer to reach peak tension- resistant to fatigue
provide prolonged contraction
many mitochondria