Anatomy The Second Flashcards

1
Q

Where do the axons of somatosensory fibres enter?

A

Dorsal horn of grey matter

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2
Q

What happens in MND?

A

The neuron dies and the muscle it supplies atrophies

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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

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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

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5
Q

What does the flexor reflex do?

A

Protects the body from painful stimuli

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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

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