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16 Cards in this Set

  • Front
  • Back
The primary internal communication network of the body; divided into the central nervous and the peripheral nervous system.
nervous system
Bundles of neuron axons that carry information in the peripheral nervous system.
Division of the nervous system that consists of the brain and the spinal cord.
central nervous system (CNS)
Simple, automatic behaviors that are processed in the spinal cord.
spinal reflexes
Division of the nervous system that includes all the nerves lying outside the central nervous system.
peripheral nervous system
Subdivision of the peripheral nervous system that communicates sensory information to the CNS and carries motor messages from the CNS to the muscles.
somatic nervous system
Subdivision of the peripheral nervous system that regulates involuntary functions.
autonomic nervous system
Branch of the autonomic nervous system that produces rapid physical arousal in response to percieved emergencies or threats.
sympathetic nervous system
Branch of the autonomic nervous system that maintains normal bodily functions and conserves the body's physical resources.
parasympathetic nervous system
System of glands located throughout the body that secrete hormones into the bloodstream.
endocrine system
Chemical messengers secreted into the bloodstream primarily by endocrine glands.
Endocrine gland attached to the base of the brain that secretes hormones that affect the function of other glands as well as hormones that act directly on physical processes.
pituitary gland
Pair of endocrine glands that are involved in the human stress response.
adrenal glands
The outer portion of the adrenal glands.
adrenal cortex
The inner portion of the adrenal glands; secretes epinephrine and norepinephrine.
adrenal medulla
The endocrine glands that secrete hormones that regulate sexual characteristics and reproductive processes; ovaries in females and testes in males.