The neuron
What are the three parts of a neuron
Dendrites, cell body, axon,
What is the all or nothing principle
The neuron either fires or it does not, there is no partial firing
Name the neurotransmitters
acetylcholine, dopamine, endorphins, epinephrine, GABA, glutamate, norepinephrine, serotonin
What is the difference between hormones and neurotransmitters
neurotransmitters are specific to receptors, as hormones are sent into the blood stream throughout the body
Two main parts of the nervous system
Central and peripheral
What is the function of a myelin sheath
to insulate and speed neural impulses
what state is resting potential at
polarized state
What neurotransmitter aids in anxiety relief
GABA
What gland produces adrenaline
adrenal gland
Two parts of the peripheral nervous system
Autonomic, somatic
What is the function of dendrites?
to receive electrochemical signals
What are neurotransmitters
chemical messengers
What are the functions of acetylcholine
muscle action, learning, attention, memory, REM sleep, emotions
What organ produces testosterone
testes
What is in the peripheral nervous system
nerves, sensory organs
What are neurons held in place by
glial cells
How does a message get sent down the axon
Action potential or the axon becomes depolarized
What neurotransmitter has these functions learning, movement, memory?
glutamate
what organ produces estrogen
ovaries
What is the difference of the sympathetic and parasympathetic nervous system
sympathetic arouses the body where as parasympathetic calms the body
Bundled axons form what
nerves
What are excitatory and inhibitory messages
excitatory are firing messages
inhibitory are dont fire messages
Name endorphins functions
mood, pain, blood pressure, appetite, sexual activity, learning, memory
what organ produces insulin
pancreas
What are the 3 parts of the brain divided into
Forebrain, midbrain, hindbrain