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20 terms

Nervous and Chemical Control Vocab

Chapter 15
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axon
part of the neuron that sends messages to surrounding neurons or body organs
brain
organ that sends and receives messages to and from all body parts
cerebellum
brain part that helps make you movements smooth and graceful rather than robotlike
cerebrum
brain part that control thought, reason, and the senses
dendrite
parts of the neuron that receive messages from nearby neurons
diabetes mellitus
disease that results when the pancreas doesn't make enough insuiln
endocrine system
made of small glands that make chemicals for carrying messages through the body
hormone
chemicals made in one part of an organism that affect other parts of the organism
insulin
homone that lets your body cells take in glucose and sugar from your blood
medulla
brain part that controls heartbeat, breathing, and blood pressure
nerve
many neurons bunched together
nervous system
made of cells and organs that let an animal detect changes and respond to them
neurons
nerve cells
pituitary
an endocrine gland that forms many different hormones;
the master gland
reflex
protective reactions that occur within the nervous system
spinal cord
part that carries messages from the brain to body nerves or from body nerves to the brain
synapse
small space between the axon of one neuron and the dendrite of a nearby neuron
thyroid gland
an important endocrine gland found near the lower part of your neck
thyroxine
the hormone that controls how fast your cells release energy from food
response
the action of an organisms because of a change in its environment