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26 Cards in this Set
- Front
- Back
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What are the two way sensory nerves can be processed?
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Hierarchal- Top Down (military)
Parallel- Alternative systems (ant hill) |
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Name 5 divisions of the brain.
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1.Telencephalon- basil ganglia and 2 cerebral hemispheres
2. Diencephalon- Thalamus (relay center) and hypothalamus (regulates) 3. Mesencephalon- Midbrain 4. Metencephalon- Pons and Cerebellum 5. Mylencephalon- Medulla |
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What connects the 2 hemispheres?
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Corpus Collosum by the commisural fibers.
*Women are better are multitasking b/c they have more commissural fibers to connect the hemispheres. |
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What connects the various ares of the cerebral cortex together?
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Association fibers.
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Another name for the cerebral hemispheres?
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cerebrum
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What is the outter layer of the brain made up of?
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grey matter/cell bodies
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The inner layer of the brain is made up of what?
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white matter (mylinated axons)
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What is the name of the figure that shows the cortical location for sensory and motor function?
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Homunculus
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Broadmann's Areas
1,2, & 3 are associated with what? |
Somatosensory (3, 1, 2)
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Broadmann's Areas 4, 5, 6
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4- Primary Motor
5- Somatosensory Association Cortex 6- Premotor Cortex |
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What is Brocca's area 44+45?
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44+45 gives motor to speech.
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What is broadman's area 22?
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Helps you understand what you hear.
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What part of the brain is comprised of the midbrain, pons, medulla, and reticular formation?
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brainstem
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What part of the brainstem controls the cardiac and respiratory systems
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? Medulla?
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What part of the brainstem stimulates arousal for awareness?
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reticular formation
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What part of the brain receives a motor plan from the cortex and feedback from the spinal cord?
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cerebellum
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Where are the cell bodies of UMN?
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Cerebral Cortex
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Are alpha and gamma motor neurons UMN or LMN
Why? |
LMN-
Lower motor neurons include interneuron and alpha motor neuron all the way to the motor end plate |
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What is Babinksi sign?
What does a positive test mean? |
Extension of the big toe and fanning of the other toes?
A positive test means there is damange to the corticalspinal tract. |
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What kind of neurons run in the Dorsal Column?
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1st order Afferent (sensory)
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What type of information does the dorsal column process?
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proprioception, fine touch, and vibration sense.
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Where does the dorsal column synapse?
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the first order neuron synapses in the medulla, the second order neuron synapses in the thalamus
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What neural pathway runs in the anterolateral column?
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spinothalamic tract
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Where does the spinalthalamic tract neurons synapse?
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The first order neuron synapses on the second order neuron in the ventral horn
The second order neuron synapses on the third order neuron in the thalamus |
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What information does the spinothalmic tract carry?
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pain, temperature, and light touch
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2 point discrimination travels in which tract?
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dorsal column tract
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