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NS Quiz 1
| Question | Answer |
|---|---|
| Nucleus, cortex- sheet, lamina-layer, column | CNS gray matter, neuronal cell bodies |
| Tract, fasciculus, lemniscus, capsule, peduncle, commisure | CNS white matter, axons |
| Ganglion | PNS, neuronal cell bodie ie. cranial nerve ganglion, posterior root ganglion |
| Peripheral nerves, rami, roots | Nerve Fibers, PNS ie. cranial nerves |
| Cerebrum or brain houses the.. | hemispheres, diencephalon |
| Brainstem and the Cerebellum houses the.. | midbrain, pons, medulla, cerebellum |
| Frontal lobe fx | Motor, executive functions, language |
| Parietal lobe fx | Sensory, cognition.language processing |
| Temporal lobe fx | hearing, language, learning and memory |
| Occipital Lobe fx | Vision |
| Left Brain vs. Right Brain | Left- logic, right-creative |
| Diencephalon houses the: what are its features | Thalamas: collections of nuclei ant: motor relay post: sensory relay Hypothalamus: hormones, homeostatis, visceral activity |
| All nerve fibers that arise from one spinal cord segment innervate how many dermatomes | 1 |
| Pseudounipolar | somatic, visceral Cell bodies part of PNS (one exception) |
| Bipolar | olfactory, visual, auditory, vestibular PNS cell bodies |
| Multipolar | Somatic/automatic, interneurons, cell bodies part of CNS or PNS |
| depolarizing, hyperpolarizing | de-more positive, hyperpolorazing-more negative |
| Absolute refractory period Relative refractory period | A: AP cannot be generated Na channels inactivated R: AP can be generated but stumuls threshold increased |
| Local potential Action Potential | Less over time, graded response: amplitude and duraction is proportional to stimulus intensity, excitory and inhibitory A: all or nothing, requires threshold stimulus, always excitory |
| plasticity | modification of a synapse, normal for them to go away over time, modifications throughout life short term vs. long term |
| habituation | decrease in response to a repeated, benign stimulus, can happen short term/long term new ring tone in environment: new distracting, always happens not as distracting |
| PNS glia and CNS glia | PNS: Schwann cells CNS: astrocytes, oligodendrocytes, microglia |
| Schwann fx | myelinate PNS axon, surround unmyelinated axons |
| Astrocytes fx | guide neuronal migration during development, response to injury, trophic support for neurons |
| oligodendrocytes fx | myelinate CNS |
| microglia fx: | sense changes in environment, change morphology in response to injury |
Created by:
kmackdaddy
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