Neurons or Neuroglia
Most sensory neurons are this shape
What is unipolar?
The anatomic term for a bundle of neurons and their blood supply outside the CNS
What is a nerve?
The amount of stimulus needed to initiate an impulse
What is threshold?
The posterior and inferior region of the brain
What is the cerebellum?
The number of cranial nerve pairs in the system
What is 12?
The cells that produce myelin in the PNS
What is a Schwann cell?
The number of spinal nerve pairs
What is 31 pairs?
The polarity of a resting membrane potential; a neuron at rest
What is negative inside and positive outside?
The cerebral lobe that is considered to be the general sensory region
What is the parietal lobe?
The name for cranial nerve X
What is the vagus nerve?
This is the primary function of ependymal cells
What is forming cerebrospinal fluid (CSF)?
The anatomic name for the sensory nerve root
What is the posterior or dorsal root?
Increased membrane permeability allows this to rush into the neuron
What is sodium?
The thalamus and hypothalamus are in this region
What is the diencephalon?
The French term for the painful syndrome of cranial nerve V
What is tic douloureux?
The plasma membrane of a Schwann cell
What is neurilemma?
The directional term for a motor pathway on spinal nerves
What is efferent?
The one-way direction of impulses in all neurons
What is dendrite> cell body> axon?
The name for the region of the cerebrum that connects right and left hemispheres
What is the corpus callosum?
Bell's palsy is a pathology associated with this cranial nerve
What is the facial nerve or cranial nerve VII?
The majority of these neurons are found only in the CNS
What are integrative or interneurons?
These are the effectors for somatic motor pathways
What are skeletal muscles?
The anatomic point where the impulse begins to travel down an axon
What is the axon hillock?
The vital function reflex center of the brain stem
What is the medulla oblongata?
These first two cranial nerves are examples of sensory-only nerves
What are the olfactory and optic nerves?