Neuron Anatomy
neuron structure that carry impulses to next neuron
What is an axon?
cranial nerve I
What is olfactory?
2 components of the CNS
What are the brain and spinal cord?
PNS neuroglia that form myelin
What are Schwann cells?
shallow groove in brain and heart
What is a sulcus?
processes that receive messages and conduct toward cell body
What are dendrites?
What is optic?
cavities in the brain
What are the ventricles?
NS subdivision that controls smooth and cardiac muscle
What is the autonomic nervous system?
striated involuntary muscle
What is cardiac muscle?
clusters of ribosomes within neuron
What are Nissl bodies?
cranial nerve VIII
What is auditory?
functions in posture and balance
What is the cerebellum?
2 components of the PNS
What are the somatic and autonomic nervous systems?
bending of light
What is refraction?
gaps in the myelin sheath
What are nodes of Ranvier?
slowing of heart rate is a function of this nerve
What is the vagus or cranial nerve X?
connects the 2 cerebral hemispheres
What is the corpus callosum?
cell bodies, dendrites, and unmyelinated axons
What is gray matter comprised of?
holds lens of eye in position
What are suspensory ligaments?
2 functions of myelin
What is protection and increase speed of conduction?
cranial nerve that functions in tongue movement for speech
What is the hypoglossal?
2 parts of the diencephalon
What is the thalamus and hypothalamus?
NS subdivision that innervates skeletal muscle
What is the somatic nervous system?
fluid in the eye formed as an embryo
What is vitreous humor?