Musculoskeletal system Flashcards
1
Q
what are joints?
A
Joints are formed when 2 or more bones meet
- are classified according to the amount of movement they allow
2
Q
what is the origin of a muscle?
A
- attachment onto the bone that does not move when the muscle contracts.
- proximal end
3
Q
what is the insertion of a muscle?
A
- attached to the bone which moves more when the muscle contracts.
- distal end
4
Q
How do muscles help us to move?
A
- muscle contracts = it pulls on 1 of the 2 bones to which it is attached, creating movement.
5
Q
what is the agonist muscle?
A
- prime mover
- muscle responsible for the movement
6
Q
what is the antagonist muscle?
A
- muscle which relaxes
7
Q
what is reciprocal inhibition?
A
- describe the coordinated relaxing of muscles on one side of a joint to accommodate contraction on the other side of that joint.
8
Q
what are fixator muscles?
A
- involved in contractions by holding or stabilizing a body part, making it immobile while another body part is moving.
9
Q
what are synergist muscles?
A
- assist movement by stabilising and controlling the surrounding muscles to assist the production of smooth, controlled movement.
10
Q
what are the origin and insertion points of the bicep?
A
scapula
ulna and radius
11
Q
what are the origin and insertion points of the triceps?
A
scapula & humerus
ulna
12
Q
what are the origin and insertion points of the quadriceps?
A
femur & pelvis
tibia
13
Q
what are the origin and insertion points of the hamstrings?
A
femur & pelvis
tibia
