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Neuro anatomy
| Question | Answer |
|---|---|
| define neuron | fundamental unit of nervous tissue each neuron is comprised of a cell body, dendrites, and an axon |
| define axon | transmits impulses away from the cell body |
| define dendrite | fiber branches that receive impulses from other parts of the nervous system and bring those impulses toward the cell body |
| define myelin | white fatty substances found in the CNS and PNS that increases the speed of nerve impulse conduction |
| define gray matter | areas that mostly contain unmyelinated fibers and cell bodies are the gray matter (aka cerebral cortex) |
| define white matter | areas that mostly contain myelinated fibers |
| define synapse | where the transmission of impulses from one neuron to another occur |
| define tract | group of myelinated nerve fibers within the CNS that carry a specific type of information from one area to another |
| function of spinocerebellar | |
| function of spinothalamic | pain pathway; small diameter, slow conducting fibers both myelinated and unmyelinated. Cross at level of entry ascend to the ventro postereolateral nucleus |
| function of dorsal columns | |
| function of corticobulbar | |
| function of corticospinal | |
| function of rubrospinal | |
| function of vestibulospinal | |
| function and strcuture of senory nuerons | carry afferent impulses to the spinal cord |
| function and strcuture of motor neurons | conducts impulses away from the spinal cord |
| location and function of exteroreceptors | located superficially on body surfaces to recieve external stimuli from the environment through the skin and subcutaneous tissue. Perception of pain, light touch, and pressure. |
| location and function of proprioceptors | deep sensation from stimuli from muscles, tendons, ligaments, joints, and fascia. Detect position sense, awareness of joints at rest, movement awareness (kinesthesia), and vibration. |
| location and function of intereceptors | located within the body to detect stimuli of the internal environment. Perception of things such as BP, and O2 levels |
| what are the combined cortical sensations | |
| location and primary function of the frontal lobe | |
| location and primary function of the temporal lobe | |
| location and primary function of the parietal lobe | |
| location and primary function of the occipital lobe | |
| what is the role of the basal ganglia during volitional movement | |
| location and functions of the cerebellum | |
| location and functions of the brainstem | |
| what are the primary structures responsible for brain protection | |
| describe blood supply to the brain | |
| describe the structure of the spinal cord | |
| list the cranial nerves and their functions |
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