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which electrolytes plays an important role in the generation of nerve impulses
potassium
At which vertebral level does the spinal cord end
first lumbar vertebra
what component of a neuron contains organelles and produces the protein and energy needed to carry out its functions
cell body
function of __________ is to send information or nerve impulses away from the cell body
axons
The __________ causes muscles to contract or relax and glands to secrete products
neurotransmitter
What is located at the end of the axon branches that allows impulse transmission to continue to other neurons
synaptic knob
toughest and outermost layer of the meninges is the __________
dura mater
structures of the spinal cord that carries sensory information to the brain
ascending track
A(n) __________ is an automatic response to a stimulus
reflex
the “bumps” of brain matter between the sulci are called
gyri
A thick bundle of nerve fibers called the __________ connects the two cerebral hemispheres
corpus callosum
Which lobe of the brain controls motor activity
frontal
cranial nerves that carry sensory information from the tongue are the __________
facial nerves
In which way does an individual develop a naturally acquired active immunity
from exposure to organisms that cause a disease
The nonspecific body defense in which neutrophils and monocytes can leave the bloodstream to attack pathogens in other tissues is __________
phagocytosis
Mucous membranes and skin are examples of which type of nonspecific body defense
mechanical barriers
