Muscle Fibres

Question 1

what are the three muscle fibre types

Answer 1

slow oxidative
fast oxidative glycolytic
fast glycolytic

Question 2

What are the structural characteristics of Type 1 muscle fibre type (Slow oxidative) (7)

Answer 2

High density of capillaries
Small and red muscle fibre
High myoglobin quantity
Small Glycogen storage space
Small phosphate storage
Large Triglyceride storage space
High mitochondrial density

Question 3

what are the functional characteristics of the Type 1 muscle fibre type (Slow Oxidative)

Answer 3

Slow contractile speed
Low contractile force
High fatigue resistance
Low anaerobic capabilities
High aerobic capabilities

Question 4

what are the structural characteristics of the Type 2a muscle fibre type (Fast Oxidative Glycolytic)

Answer 4

Medium density of capillaries
Large and red muscle fibre
Medium myoglobin quantity
Large Glycogen storage space
Large phosphate storage
Medium Triglyceride storage space
Medium mitochondrial density

Question 5

what are the functional characteristics of the Type 2a muscle fibre type (Fast Oxidative Glycolytic)

Answer 5

Fast contractile speed
Medium contractile force
Medium fatigue resistance
High anaerobic capabilities
Medium aerobic capabilities

Question 6

what are the structural characteristics of the Type 2b muscle fibre type (Fast Glycolytic)

Answer 6

Low density of capillaries
Large and white muscle fibre
Low myoglobin quantity
Large Glycogen storage space
Large phosphate storage
Small Triglyceride storage space
Low mitochondrial density

Question 7

what are the functional characteristics of the Type 2b muscle fibre type (Fast Glycolytic)

Answer 7

Fast contractile speed
High contractile force
Low fatigue resistance
High anaerobic capabilities
Low aerobic capabilities

Question 8

What is the All or None Law

Answer 8

The muscle fibre can only be contracting or not