Anatomy - Muscular System Flashcards
1
Q
What are type 1 muscle fibres (slow oxidative) used for ?
A
Marathon runner (long distances)
2
Q
What are type 2a muscle fibres (fast oxidative glycolytic) used for ?
A
400m race
3
Q
What are type 2b muscle fibres (fast glycolytic) used for ?
A
100m sprint
4
Q
What is the contractile speed of each muscle fibre type ?
A
Type 1 = slow
Type 2a = fast
Type 2b= fast
5
Q
What is an isotonic muscle contraction compared to a isometric ?
A
In an isotonic contraction the muscle is changing length when exerting a force whereas in an isometric contraction the muscle is staying the same length
6
Q
Name the two types of isotonic contraction and their properties
A
Isotonic concentric = shorten under contraction
Isotonic eccentric = lengthen when contracts
