Ch 13-14 Flashcards
(35 cards)
Process of interpreting sensory input to decide the action
Integration
Input that monitors changes occurring inside and outside the body
Sensory
Input that responds to integrated stimuli
Motor
The central nervous system consists of the (2 items)
Brain and spinal cord
The peripheral nervous system consists of the (2 items)
Spinal nerves and cranial nerves
The afferent division is also known as
Sensory division
The efferent division is also known as
Motor division
Division containing nerve fibers that carry impulses away from the CNS
Efferent
The two subdivisions of the efferent division are
Somatic and autonomic
This efferent subdivision is involuntary
Autonomic
This efferent subdivision is voluntary
Somatic
Support cells of the CNS
Neuroglia
These cells brace neurons
Astrocytes
These cells dispose of debris in the nervous tissue
Microglia
These cells circulate cerebrospinal fluid
Ependymal cells
These cells protect neuron cell bodies
Satellite cells
These cells form myelin sheaths in the PNS
Schwann cells
These cells produce myelin sheaths
Oligodendrocytes
Cells that transmit messages
Neurons
The nucleus is contained in this part of the neuron
Cell body
This part of the neuron conducts impulses away from the cell body
Axons
This part of the neuron conducts impulses toward the cell body
Dendrites
Axons end in ____ ____ that contain vesicles with ______ and are separated from the neuron by a gap called _____ _____ and the junction between the nerves are _____
Axonal terminals
Neurotransmitter s
Synaptic cleft
Synapse
Gaps in the myelin sheaths along the axon
Nodes of Ranvier