chapter 15-1 science

Question Answer
Stimulus A change in a organism's surroundings that causes the organism
to react.
Response An action or change in behavior that occurs in reaction to a stimulus.
Neuron A cell that carries information through the nervous system.
Nerve Impulse A message carried by a neuron.
Dendrite A thread like extension of a neuron that carries nerve impulses toward the cell body.
Axon A thread like extension of a neuron that carries nerve impulses away from the cell body.
Nerve A bundle of nerve fibers.
Sensory Neuron A neuron that picks up stimuli from the internal or external environment and converts each stimulus
Motor Neuron A neuron that sends an impulse to a muscle or gland, causing the muscle or gland to react.
Interneuron A neuron that carries nerve impulses from one neuron to another.
Synapse The junction where one neuron can transfer an impulse to the next structure.

Question Answer CNS are not paired with its correct division Cranial nerves The sales and pns are neurons and astrocytes Is not true of the peripheral nervous system A neuron consist of Cell body dendrites and one axon The part …

Term Definition power stroke ATP-powered cross bridge binding and bending that pulls the thin filaments in closer together between the thick filaments during contraction of a muscle fiber excitation-contraction coupling series of events linking muscle excitation (the presence of an …

Term Definition Stimulus A change or signal in an organism's surroundings that causes the organism to react. Response An action or change in behavior that occurs in reaction to a stimulus. Neuron A cell that carries information through the nervous …

Term Definition Lactic Acid Builds up from oxygen debt Tendons Tissue to bone connection Abduction Pulls away Adduction Pulls toward you Cardiac Muscle Only in heart, involuntary movement, striated. 1 nucleus per cell Smooth Muscle Walls of hollow organs (except …

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