Term
| 2 divisions of the nervous system |
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Definition
| central (CNS) and peripheral (PNS) |
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Term
| functions of the nervous system |
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Definition
sensory
motor
integration
maintain homeostasis |
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Term
| sensory functions of the nervous system |
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Definition
gather info
monitor
internal & external conditions |
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Term
| describe the process of integration |
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Definition
perceptions are created
decisions are made
decisions are acted upon |
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Term
| what are "motor" functions |
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Definition
impulses are transmitted to effectors
muscles contract
glands secrete |
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Term
|
Definition
| composed of neurons and neuroglia |
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|
Term
| describe neural morphology |
|
Definition
|
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Term
|
Definition
| protein rods that support |
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Term
|
Definition
|
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Term
| describe the mitotic functions of the neuron |
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Definition
|
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Term
|
Definition
| branching/tree-like extensions that conducts impulse towards the cell body |
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|
Term
| how are neurons classified |
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Definition
| by number (none, one, or many) |
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Term
|
Definition
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|
Term
| differentiate between bipolar, unipolar, and multipolar neurons |
|
Definition
bipolar: 1 dendrite
unipolar: no dendrites
multipolar: many dendrites |
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|
Term
| differentiate between myelinated and unmyelinated axons |
|
Definition
myelinated: forms white matter
unmyelinated: forms gray matter |
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|
Term
| differentiate between grey and white matter |
|
Definition
grey: unable to heal/regenerate
white: able to heal/regenerate |
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|
Term
|
Definition
| produce myelin sheath of PNS & wrap around axons |
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|
Term
| what are nodes of ranvier |
|
Definition
| gaps between schwann cells |
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|
Term
| what do sensory neurons do |
|
Definition
| carry impulses from PNS to CNS |
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|
Term
|
Definition
| transfer sensory impulses to appropriate places for processing |
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|
Term
| differentiate between afferent and efferent neurons |
|
Definition
afferent: sensory
efferent: motor |
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Term
|
Definition
|
|
Term
| what are some reflexes used in neurological exams |
|
Definition
|
|
Term
|
Definition
|
|
Term
| which neuroglial cells are phagocytes |
|
Definition
|
|
Term
|
Definition
| star shaped cells that clean up debris in brain |
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|
Term
| what are oligodendrocytes |
|
Definition
| cells that form myelin in CNS |
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|
Term
|
Definition
| small cells that support immune function |
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|
Term
| what is a cord like bundle of tissue made of neurons and neuroglia |
|
Definition
|
|
Term
| what do somatic nerves do |
|
Definition
| voluntary controls body movements |
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|
Term
| how many pair of spinal nerves are there |
|
Definition
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|
Term
|
Definition
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|
Term
|
Definition
|
|
Term
| what is an action potential |
|
Definition
| nerve impulse/self propagating wave of negativity |
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|
Term
| what is the resting state |
|
Definition
|
|
Term
| what happens when a stimulus is applied to a neuron |
|
Definition
| affects permeability of membrane |
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|
Term
| what is the role of ATP in nerve impulse conduction |
|
Definition
| provides energy required to maintain neurotransmission |
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|
Term
| difference between polarized, depolarized, and repolarized |
|
Definition
polarized: resting state
depolarized: positive ions rush in
repolarized: K+ rushes out |
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|
Term
|
Definition
| junction between 2 communicating neurons |
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|
Term
| what does salutatory conduction mean |
|
Definition
|
|
Term
| where is the presynaptic knob |
|
Definition
|
|
Term
| where is the post synpase |
|
Definition
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