Assessment: Nervous Flashcards
(58 cards)
In order to determine the strength of a stimulus, the CNS uses…
Frequency of action potentials
Excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle…
Acetylcholine
Period after an initial stimulus when a neuron is not sensitive to another stimulus is the…
Absolute refractory period
The part of a neuron that conducts impulses away from its cell body is…
Axon
Ion channel that opens in response to a change in membrane potential and participates in the generation and conduction of action potentials…
Voltage-gated channel
An impulse from one nerve cell is communicated to another nerve cell via the…
Synapse
Destroys ACh a brief period after its release by the axon endings…
Acetylcholinesterase
ANS innervates…
Smooth and cardiac muscles and glands
Collections of nerve cell bodies outside the central nervous system are called…
Ganglia
Immediately after an action potential has peaked, the gates that open are for…
Potassium
Concerning movement of ions across excitable living membranes…
Sodium gates in the membrane can open in response to electrical potential changes
A second nerve impulse cannot be generated until…
The membrane potential has been reestablished
The interior surface of a cell membrane of a resting neuron differs from the external environment in that the interior is…
Negatively charged and contains less sodium
Primary auditory cortex is located in the…
Temporal lobe
Cell that lines the ventricles of the brain…
Ependymal cells
Subarachnoid space lies between the meninges…
Arachnoid and pia
Vital centers for the control of heart rate, respiration and blood pressure are located in the…
Medulla
Cell bodies of the sensory neurons of thespian nerves are located in…
The dorsal root ganglia of the spinal cord
Fissure that separates the cerebral hemispheres…
Longitudinal fissure
Describe cerebrum…
Executive suite
Shallow groove on surface of the cortex…
Sulcus
Generalization that would not apply to the cerebral cortex…
The hemispheres are exactly equal in function
Central sulcus separates the lobes…
Frontal from parietal
Ridges of tissue on the surface of the cerebral hemispheres…
Geri
