Anatomical Organization
The 2 main divisions of the nervous system
What are the central nervous system and peripheral nervous system
The most abundant neuroglia cell
The 2 ways to classify neurons
What are structurally and functionally
The value of the resting membrane potential
-70mV
A disease the gradually destroys the myelin sheath of neurons in the central nervous system
What is Multiple Sclerosis
The part of the nervous system that consists of the brain and spinal cord
What is the central nervous system
The 2 neuroglia cells that are functionally similar
What are oligodendrocytes and schwann cells
The structural classification of neurons that is the must abundant
What is multipolar
The period of time when an action potential cannot be generated
What is the refractory period
The transport system that carries supplies to the axon terminals
What is anterograde transport
The 2 subdivisions of the peripheral nervous system
What are the sensory (afferent) and motor (efferent) divisions
The type of neuroglia that acts as phagocytes to support immune function
What is microglia
The functional classification of neurons that are between sensory and motor neurons
What are interneurons
The phase of an action potential caused by an influx of sodium into the neuron
What is depolarization
The number of cranial nerve pairs
What is 12
The 2 divisions of the motor division of the peripheral nervous system
What are the autonomic and somatic divisions
The type of neuroglia that control the chemical environment of a neuron
What is satellite cells
The rarest structural classification of neurons that are only found in sensory organs
What is bipolar
The type of conduction that allows impulses "jump" from one Node of Ranvier to another
What is saltatory
A collection of neuron cell process in the central nervous system
What are tracts
The 2 divisions of the autonomic nervous system
What are the sympathetic and parasympathetic divisions
The organelle within a neuron cell body that functions as a modified rough endoplasmic reticulum to biosynthesize proteins and membranes
What is nissl bodies
The structural classification of neurons found in the ganglia of the spinal cord and cranial nerves
What is unipolar
The 2 things that determine how fast an action potential travels
What is axon diameter and degree of myelination
The body cavity where central nervous system structures are located
What is the dorsal cavity