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Nervous System - Part I
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The functional division of the nervous system that is also called the visceral system
Autonomic nervous system
The functional division of the nervous system that controls skeletal muscles
Somatic nervous system
The system that promotes the fight-or-flight response
Sympathetic nervous system
The system that stimulates the activity of the digestive tract
Parasympathetic nervous system
The structural division of the nervous system that includes the brain
Central nervous system
The structural division of the nervous system that includes the cranial nerves
Peripheral nervous system
A nerve cell fiber that carries impulses away from the cell body
Axon
The part of a neuron that receives a stimulus
Dendrites
The sheath around some neuron fibers taht aids in regeneration
neurilemma
A gap in the neuron sheath
Node
The portion of the spinal cord made up of myelinated axons
White matter
The scientific name for a nerve cell
Neuron
A bundle of neuron fibers located outside the central nervous system
Nerve
A bundle of neuron fibers located within the central nervous system
Tract
Neurons that conduct impulses towards the brain
Afferent (Sensory)
Neurons that conduct impulses away from the brain
Efferent (Motor)
The coating of individual nerve fibers
Endoneurium
The coating of an entire nerve
Epineurium
The step in which the membrane potential returns to rest
Repolorization
The ion that crosses the neuron membrane to cause depolarization
Na+
The result of positive ions entering the neuron
Depolarization
A sudden change in membrane potential that is transmitted along axons
Action potential
The ion that leaves the neuron to cause repolariazation
K+
Binds norepinephrine
Adrenergic receptor
Binds acetylcholine and induces muscle contraction
Nicotinic receptor
Acetylcholine receptor found on effector organs of the parasympathetic system
Muscarinic receptor
Degeneration of nerves supplying the extremities
Peripheral neuritis
A disease associated with the destruction of myelin sheaths
Multiple sclerosis
Paralysis of one arm
Monoplegia
A viral disease resulting in paralysis
Poliomyelitis
A viral disease caused by herpes zoster
Shingles
Loss of sensation and motion in the lower part of the body
Paraplegia
A disease associated with selecive destruction of motor neurons
Amyotrophic lateral sclerosis
The skin region supplied by a single spinal nerve is called:
A. dermatome
B. plexus
C. galglion
D. synapse
A. dermatome
The voluntary nervous system controls:
A. cardiac muscle
B. skeletal muscle
C. glands
D. visceral muscle
B. skeletal muscle
Which of the following are effectors of the nervous system:
A. muscles and glands
B. receptors and neurotransmitters
C. synapses and dendrites
D. sensory neurons and ganglia
A. muscles and glands
Cell bodies of sensory neurons are collected in ganglia in the:
A. dorsal root of the spinal nerve
B. ventral horn of the spinal cord
C. effector organ
D. sympathetic chain
A. dorsal root of the spinal nerve
Which of the following substances is a neurotransmitter:
A. actin
B. epinephrine
C. myelin
D. sebum
B. epinephrine
A lumbar tap is done to remove:
A. blood
B. intracellular fluid
C. interstitial fluid
D. cerebrospinal fluid
D. cerebrospinal fluid
Neurons that relay impulses within the spinal cord are called:
A. mixed nerves
B. interneurons
C. afferent neurons
D. motor neurons
B. interneurons
Fibers that carry impulses towards the neuron cell body are called_____
Dendrites
The portion of the spinal cord made up of cell bodies and unmyelinated axons is called the _____
Gray matter
The fatty material that covers some axons is called_____
Myelin
The junction between two neurons is call a(an)_____
Synapse
The network of spinal nerves that supplies the pelvis and legs is the _____
Lumbosacral plexus
The brain and spinal cord together are referred to as the_____
Central nervous system
The neurotransmitter used at cholinergic synapses is _____
Acetylcholine
The small channel in the center of the spinal cord that contains cerebrospinal fluid is the _____
Central canal
A nerve cell is also called _____
Neuron
Author
nkwannabe
ID
119570
Card Set
Nervous System - Part I
Description
Nervous System - Part I
Updated
2011-11-29T16:41:14Z
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