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Homeostasis - MCAS

MCAS Vocabulary - Homeostasis, Nervous System, Endocrine System

QuestionAnswer
metabolism all of the chemical reactions that build or break down materials within an organism
axon long fiber that carries electrical impulses away from the nerve cell body
glucose simple sugar that is used to make ATP through cellular respiration
insulin protein hormone that helps to decrease blood sugar
circulatory system body system consisting of the heart and blood vessels that circulate blood through the body
kidneys organs that filter nitrogen wastes from blood to make urine
liver organ that stores excess glucose, makes bile, and filters drugs out of the blood
excretion elimination of wastes from the body (urine, carbon dioxide, sweat)
spinal cord cord of nerve tissue that conducts messages between the brain and the peripheral nerves
sensory neurons neurons that carry sensory information from receptors to the central nervous system
motor neurons neurons that carry outgoing information from the central nervous system to the muscles and glands
neuron nerve cell; conducts electrical signals
endocrine system collection of glands that secrete hormones into the blood which regulate growth, development, and homeostasis
hormone chemical messengers secreted by glands into the blood
gland an organ that secretes hormones into the bloodstream
nervous system consists of brain, spinal cord, and nerves and regulates the body's responses to internal and external stimuli
homeostasis the process by which organisms keep their internal environment relatively stable
negative feedback loop an opposite action to what is occurring in the body to regain homeostasis
dendrites part of a neuron that carries the electrical impulse to the cell body
nerve bundle of neurons surrounded by connective tissue
synapse space where two adjacent neurons meet
neurotransmitter chemical messenger sent across a synapse which allows two neurons to communicate
central nervous system consists of the brain and spinal cord
peripheral nervous system consists of all of the nerves outside of the brain and spinal cord
impulse electrical signal sent down the axon of a neuron
brain organ that analyzes information from sensory nerves and organizes a response from motor nerves
cell body receives information from dendrites and sends it along the axon
glucagon protein hormone that helps to increase blood sugar
Created by: mshunt
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