Proprioception Flashcards
1
Q
describe kinaesthesia
A
movement awareness
2
Q
receptors involved in proprioception?
A
- muscle spindles
- golgi tendon organs
- joint receptors
3
Q
extrafusal
A
- bulk of the muscle fibres
- contractile
4
Q
intrafusal
A
- muscle spindles
- specialised muscle fibres
- within a ct capsule
5
Q
describe muscle spindle role
A
- information about muscle length
- act to maintain muscle length
6
Q
gamma motor neurones
A
- cause contraction of intrafusal fibres
- maintain tension in spindle
- maintain spindle afferent activity
- alpha-gamma co-activation
7
Q
golgi tendon organs
A
- in tendons, in series with muscle fibres
- very few, if any, in masticatory muscles
- tension receptors
- role in (inhibitory) reflex - prevention of XS stretch of muscle
8
Q
Joint receptors
A
- Pacinian - in ligaments - acceleration
- golgi - in ligament - position
- ruffini - in capsule - movement
