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nervous system

the bodys speedy electrochemical communication network, consisting of nerve cells of the peripheral and central nervous system

central nervous system

the brain and spinal cord

peripheral nervous system

the sensory and motor neurons that connect to the rest of the body


neural "cables" containing many axons. part of the peripheral nervous system. connects to the central nervous system with muscles glands and sense organs

sensory neurons or afferent

carry incoming information from the sense receptors to the central nervous system

motor neurons or efferent

carry outgoing information from the CNS to muscles and glands


CNS neurons that internally communicate and intervene between the sensory inputs and motor outputs

somatic nervous system

component of the PNS that controls the bodys skeletal system

autonomic nervous system

part of PNS that controls the glands and muscles of the internal organs like the heart

sympathetic nervous system

division of the ANS that arouses the body, mobilizing its energy in stressful situations

parasympathetic nervous system

division of the ANS that calms body conserving its energy

sympathetic and parasympathetic nervous system

2 divisions of the autonomic nervous system

somatic and autonomic nervous system

2 components of the PNS


our automatic response to stimuli. a simple, automatic, inborn response to a sensory stimulus

neural network

interconnected neural cells, with experience networks can learn, as feedback strengthens or inhibits connections that produce certain results


tissue destruction, this is a naturally or experimentally caused destruction of brain tissue

edoctrine system

set of glands that secrete hormones into the blood stream. it is the "bodys snail" "slow" for the body so like 1 second


chemical messengers that are produced in one tissue and affect another, similar in structure to neurotransmitters. when acted on brain they influence our interests for sex, food, and aggression. travel in the blood

adrenal glands

located right above the kidney, release epinephrine and norepinephrine. increase heart rate, blood pressure, and blood sugar giving us a surge of energy, helps to arouse the body in times of stress. works with the sympathetic NS

pituitary glands

endoctrines systems most influential. produces of controls release of many different types of hormones. located under the hypothalamus which controls it


adjacent brain area to pituitary glands and controls it

adrenal glands, pituitary glands

parts of the endoctrine system that control hormones

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