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26 Cards in this Set
- Front
- Back
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What are the three parts of the telencephelon? |
1. Cortex 2. White matter 3. Basal nuclei |
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_______ is areas of grey matter that outline the brain |
Cortex |
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__________ are axonal pathways, myelinated pathways in the brain and spinal cord; tracts that turn into nerves |
White matter |
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_______ are clusters of cell bodies in the central nervous system |
Basal nuclei |
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What are the four parts of the functional areas of the cerebral cortex? |
1. Primary motor area 2. Premotor cortex 3. Frontal eye field 4. Broca's area |
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Where is the primary motor area located? |
In front of the central sulcus; anterior to the primary motor cortex |
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What is the primary motor area called? (2) |
Precentral gyrus Somatic motor association area |
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The map of the human body on the precentral gyrus is influenced by ___________? |
The surrounding brain area |
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What is Broca's area? |
A speech area; an association area; it will drive speech but its got to use the primary motor cortex to deliver those signals |
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Postcentral gyrus is the _______ area. |
Sensory |
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What does the transverse fissure separate? |
The cerebral hemispheres from the cerebellum |
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What separated the frontal and parietal lobes? |
Lateral sulcus |
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What is deep down into/within the lateral sulcus? |
Insula/insular cortex |
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What three things does the insular cortex deal with? |
Taste, smell, and info about autonomics |
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What function occurs in the prefronal cortex? |
Cognition |
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Pyramidal neurons have axons that go where and cause what? |
Down in the spinal cord to the ventral horn of the cord and cause skeletal muscles to contract |
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What is the path of the corticospinal tract? |
Starts in the precentral gyrus, then the pyramidal neurons go through the brain stem to the anterior side of the medulla, then down to the ventral horn, out the ventral root and in the spinal nerve out to the skeletal muscle |
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When you hear "somatic motor" what should you think of? |
Pyramidal neuron in cortex |
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Basal nuclei can influence what two things? |
Downstream pathways and the cortical areas |
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What does the superior colliculous do? |
Helps you track, keeping your eyes on the moving object |
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What is the vestibulo tract for? |
Balance, from CN 8 |
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Where are the two different places on your spinal cord where you will find corticospinal information? |
1. Lateral corticospinal tract (located in the lateral funiculus) 2. Anterior corticospinal tract |
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Primary motor cortex: _______ gyrus |
Precentral |
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The precentral gyrus deals with _____ _____ function. |
Somatic motor |
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What is the premotor cortex there for? |
An association area for the primary |
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What does the frontal eye field do? (3) |
Cicatic eye movements; influence the superior colliculus; visual reflex |
