MUSCLES Flashcards
1
Q
Why is ATP required for in muscle contraction
A
- Sliding of filaments during contraction
- Movement of mysoin head
- Active transport of Ca2+ ions into sacroplasic reticulum
2
Q
Role of phospoceratine
A
- Provides Pi
- To make ATP
- ATP can be synthesised to muscles longer
3
Q
Description of skeletal muscle
A
Used in locomotion
4
Q
Description of cardiac muscle
A
Autonomic control
Found in heart
5
Q
Description of smooth muscles
A
Autonomic control
Found in walls of internal organs
6
Q
Muscle contraction (2marks)
A
- Sacromere shortens
- Z-lines closer together as actin pulls over myosin
7
Q
Contract
A
Agonist
8
Q
Relax
A
Antigonist
9
Q
Why does skeletal muscle contract
A
In response to the release of acethylchodine from motor neurone
