The Nervous System Flashcards
The…. consists of the brain, the spinal cord, and the network of nerves throughout the body
nervous system
It influences how we act or react to
stress
The…. is the brain and spinal cord and where most info is processed
central nervous system
The….is the network of nerves throughout the rest of the body
peripheral nervous system
The …. nervous system controls basic functions of the body that we do not normally have conscious control over
autonomic
One division of the autonomic system is….
sympathetic
The other division of the autonomic system is….
parasympathetic
Synptic bulbs on the ends of the axons make connections with othe nerve cells with tiny gaps or …. between the cells
synapses
Schwann cells wrap around the axons of some neurons forming a lipid and cholestrol rich insulating layer called the
myelin sheath
The characteristic of nerve cells which sets them apart from the other cells of the body which allows them to transmit signals is their ability to
depolarize
Transmission of the signal across a synapse involves the release of a chemical called a
neurotransmitter
A shortage of …. in the brain causes parkinsons disease
dopamine
Overactivity of the nerve cells that release dopamine seems to be related to
schizophrenia
Deficiencies in …. in the brain are associated with depression.
serotonin
…. means to feed the receptor cells
neurotrophic
