Term
| name the period when the neuron cannot respond to another stimulus |
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Definition
| absolute refractory period |
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Term
| K+ gates open during which phase |
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Definition
|
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Term
| a nerve impulse when its transmitted |
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Definition
|
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Term
| T/F: efferent nerve fibers = motor nerve fibers |
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Definition
|
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Term
| What is the formula for Ohm's law? |
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Definition
| current=voltage/resistance |
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Term
| What is the ciliated CNS neuroglia that help move cerebral-spinal fluid? |
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Definition
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Term
| What is another name for the sheath of schwann? |
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Definition
|
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Term
| what is the period after the initial stimulus when a neuron is not sensitive to another stimulus? |
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Definition
|
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Term
| what is the part of the neuron that conducts impulses away? |
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Definition
|
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Term
| how is an impulse communicated from one nerve cell to another? |
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Definition
|
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Term
| what is the role of acetylcholinesterase? |
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Definition
| to destroy or neutralize acytl coA by the axonal endings |
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Term
| what are collections of nerves outside the CNS? |
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Definition
|
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Term
| what is the CNS refer to? |
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Definition
|
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Term
| what is the substance released at an axonal ending in the synaptic bulb? |
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Definition
| acytl coA or neurotransmitter substance |
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Term
| what is the part of a neuron that receives stimuli? |
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Definition
|
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Term
| how many Na+ and K+ ions are pumped and in what direction? |
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Definition
| 3 Na+ ions out and 2 K+ ions in |
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Term
| what are the sympathetic and parasympathetic subdivisions of? |
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Definition
|
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Term
| what gates open when an action potential is peaked? |
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Definition
|
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Term
| what is the main visceral control center of the body? |
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Definition
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Term
| experiences, ideas, judgement, and conscience are associated with what area of the brain? |
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Definition
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Term
| what is the stage of sleep when vitals reach lowest normal levels? |
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Definition
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Term
| what is the stage of sleep when you are easily woken and have alpha waves |
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Definition
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Term
| what stage of sleep begins 90 minutes after onset of sleep? |
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Definition
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Term
| where does the spinal cord end? |
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Definition
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Term
| what cerebral hemisphere is mostly dominant? |
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Definition
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Term
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Definition
| it is in the cerebellum and it is white matter...it looks like a tree |
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Term
| where is the primary auditory cortex? |
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Definition
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Term
| where is the gray and white matter in relation to the spinal cord? |
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Definition
| gray matter inside & white matter outside |
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Term
| where is the subarachnoid space? |
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Definition
| between arachnoid and pia mater |
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Term
| where are the vital centers that control heart rate, blood pressure, and respiration? |
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Definition
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Term
| name the fissure separating the cerebral hemispheres |
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Definition
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Term
| what is the rough, thick meningeal layer? |
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Definition
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Term
| what is a shallow groove on the surface of the cortex |
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Definition
sulcus
(gyrus, sulcus, fissure) |
|
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Term
| what is the main structure for producing cerebral spinal fluid? |
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Definition
|
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Term
| what are the ridges of tissue on the surface of the cerebrum called? |
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Definition
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Term
| which lobe does the central sulcus separate? |
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Definition
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Term
| what brain structure is considered the "thermostat" of the body? |
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Definition
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Term
| white matter of the spinal cord contains what fibers? |
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Definition
| myelinated and unmyelinated nerve fibers |
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Term
| spastic paralysis suggests involvement of which neurons? |
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Definition
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Term
| what separates the frontal lobe from the temporal lobe? |
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Definition
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Term
| what area of the brain is considered a motor speech area? |
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Definition
|
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Term
| what do the commissures connect? |
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Definition
|
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Term
| what are the structures of the limbic system? |
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Definition
| hippocampus, amygdela, and _____ |
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Term
| wakefullness or alertness is controlled in what brain area of the cerebral cortex? |
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Definition
| reticular formation or RAS |
|
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Term
| how long does short term memory last? |
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Definition
|
|
Term
| what brain waves are common in children and not in adults? |
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Definition
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|
Term
| what is the large tract that connects the right and left sides of the brain? |
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Definition
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Term
| the infundibulum connects the hypothalamus to the: |
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Definition
|
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Term
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Definition
| small protrusions of the arachnoid (the thin second layer covering the brain) through the dura mater (the thick outer layer). They protrude into the venous sinuses of the brain, and allow cerebrospinal fluid (CSF) to exit the brain, and enter the blood stream. |
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Term
| the "knee jerk" reflex is an example of |
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Definition
|
|
Term
| three branches of the trigeminal nerve are: |
|
Definition
| maxillary, opthalmic, and mandibular |
|
|
Term
| the abducens nerve supplies: |
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Definition
|
|
Term
| the "funny bone" is stimulation of what nerve? |
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Definition
|
|
Term
| what are nerves that carry impulses to the CNS |
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Definition
|
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Term
| what is the largest and longest nerve of the body? |
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Definition
|
|
Term
| what is the "babinski sign" and is it normal in adults? |
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Definition
| toes curl under in an infant. no |
|
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Term
|
Definition
| when a nerve is both sensory & motor |
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Term
| if you have balance problems its because of the |
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Definition
|
|
Term
| what is the largest cranial nerve? |
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Definition
|
|
Term
| what surrounds a fasicle? |
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Definition
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|
Term
T/F: The all-or-none phenomenon as applied to nerve conduction states that the whole nerve cell must be stimulated for conduction to take place.
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Definition
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Term
| T/F: During depolarization, the inside of the neuron's membrane becomes LESS negative |
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Definition
|
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Term
| T/F: Saltatory conduction occurs because of the presence of salt (NaCl) around the neuron. |
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Definition
|
|
Term
| The sheath of Schwann is also called the _________. |
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Definition
|
|
Term
| The point at which an impulse from one nerve cell is communicated to another nerve cell is the _____. |
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Definition
|
|
Term
| The role of acetylcholinesterase is to ______. |
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Definition
| destroy ACh a brief period after its release by the axonal endings |
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Term
| The substance released at axon terminals to propagate a nervous impulse is called a(n) _______. |
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Definition
|
|
Term
| The part of the neuron that normally receives stimuli is called ________. |
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Definition
|
|
Term
| The sodium-potassium pump _______. |
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Definition
| pumps three sodium ions outside the cell and two potassium ions inside |
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Term
| In what way does the interior surface of a cell membrane of a resting neuron differ from the external environment? The interior is _______. |
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Definition
| negatively charged and contains less sodium |
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