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7 Cards in this Set
- Front
- Back
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What are reflexes? |
Relatively fixed automatic muscle responses to particular stimuli |
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What do all reflexes involve? |
The activation of small sensory receptors in the skin, the , the joints, or even in the muscles themselves |
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What are the two types of muscles and what do they do? |
Agonist: muscles that move a joint in an intended direction Antagonist : muscles that oppose a joint and intended directions |
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What is an example of the crossed extension reflex? |
The fluctuation withdrawal that occurs when the Barefoot and counters a sharp object. The leg is immediately lifted from the source of potential injury, but the opposite leg responds with increased extension so that we can maintain our balance |
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What is one important brain area that is responsible for voluntary movement? |
The motor cortex, which exerts powerful control over the spinal cord in part through Direct Control of its Alpha motor neuron |
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What are some brain regions that control movement? |
Basal ganglia, Thalamus , and a large number of neuron groups located within the midbrain and brainstem |
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What does the cerebellum do? |
Receives direct information from all of the sensory receptors in the head and the limbs and from most areas of the cerebral cortex |
