Action Potentials
CNS
PNS
Pathways
ANS
100
This is the separation of charge across a cell membrane.
What is transmembrane potential.
100
This anchors the spinal cord.
What is the filum terminale.
100
This ramus serves the muscles and skin of the back.
What is the dorsal rami.
100
This pathway carries sensory information regarding touch, vibration, pressure, and proprioception.
What is the dorsal column pathway (also known as the medial-lemnicus pathway).
100
In a sympathetic state, your digestive and urinary functions do this.
What is decrease.
200
During this period, Na gated channels are resetting.
What is the absolute refractory period.
200
CSF drains into the dural sinus via these.
What are arachnoid granulations.
200
This reflex is activated when a muscle is contracting too strongly.
What is the tendon reflex.
200
This pathway sends subconscious information regarding position.
What is the spinocerebellar pathway.
200
This is the term for when a structure receives signals from both parasympathetic and sympathetic fibers.
What is dual innervation.
300
These decrease in strength as they spread from the origin of the stimulus.
What is graded potentials.
300
Draw where you would find cell bodies of visceral motor neurons.
What is anterior and lateral.
300
A function of this cranial nerve involves controlling the muscles of mastication.
What is the trigeminal nerve.
300
Draw the pathway the sends information regarding itch.
What is spinothalamic.
300
To reach the heart, sympathetic fibers do this
What is go into the chain ganglion.
400
This occurs when many stimuli arrive at multiple synapses at once in multiple locations.
What is spatial summation.
400
This cortex creates motor plans.
What is the premotor cortex.
400
The idea that particular receptors for particular modalities go to specific regions of the brain describes what?
What is labeled line.
400
The basal ganglia and substantia nigra are involved in this pathway.
What is the extrapyramidal pathway (subconscious motor).
400
This structure contains postganglionic neurons with short axons and is activated during a sympathetic response.
What is the adrenal medulla.
500
Heart cells fire using this type of synapse.
What is electrical synapse (gap junctions).
500
This region of the brain is affected during ataxia.
What is the cerebellum.
500
These cells help to maintain the environment around neurons.
What are satellite cells.
500
You lose sense of touch, position, temperature, and pain in your left arm. Where is the damage?
What is F.
500
In the GI tract, integration centers for reflexes can occur in ganglia and do not have to travel to the spinal cord. This is called...
What is a short reflex (long reflexes travel to the spinal cord for integration).
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