Anatomy The Second Flashcards
1
Q
Where do the axons of somatosensory fibres enter?
A
Dorsal horn of grey matter
2
Q
What happens in MND?
A
The neuron dies and the muscle it supplies atrophies
3
Q
What’s a reflex?
A
An involuntary stereotypes pattern of response brought about by a sensory stimulus mediated at the level of the spinal cord
4
Q
Name the 5 stages of the stretch reflex
A
1) tendon stretched
2) intrafusal muscle fibres stimulated
3) sensory neuron activated
4) monosynaptic reflex arc
5) muscle contraction
5
Q
What does the flexor reflex do?
A
Protects the body from painful stimuli
6
Q
Name the 4 stages of the flexor (and crossed extensor) reflex
A
Pain stimulus
Sensory neuron activated
Polysynaptic reflex arc
Flexion and withdrawal