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Exercise Physiology

QuestionAnswer
T or F? The peripheral nervous system contains the brain and spinal cord? False
T or F? The neurons in your foot are the same as the neurons in your brain? True
What are the two divisions of the autonomic nervous system? Sympathetic and Parasympathetic
What controls voluntary movements? Somatic Nervous system
What are the incoming sensory neurons called? Afferent
What are the outgoing motor neurons called? Efferent
What part of the nervous system is known as the rest and digest system? Parasympathetic
What part of the nervous system is known as the fight or flight system? Sympathetic
What are the three parts of a neuron? Cell body, axon, and dendrites
What part of the neuron receives the signal? Dendrites
What part of the neuron sends the signal? Axon
What part of the neuron contains the nucleus? Cell body
What is the resting membrane potential of a neuron? -70mV
T or F? At rest, there are more potassium ions outside the neuron? False
T or F? At rest, the inside of a neuron is more negative than outside? True
What is it called when the inside of a cell becomes less negative? Depolarization
What is it called when the inside of a cell becomes more negative? Hyperpolarization
T or F? Action potentials are inhibitory? False
What is the threshold at which generates an action potential? -55mV
What refractory period occurs during depolarization? Absolute
What refractory period occurs during repolarization Relative
T or F? Action potentials can only travel one direction? True
What connects the left and right hemispheres of the brain? Corpus callosum
What is the outermost layer of the cerebrum? Cerebral Cortex
Which lobe of the brain is used for visual input? Occipital lobe
What lobe of the brain is the primary motor cortex located? Frontal lobe
What is the major sensory relay center in the brain? Thalamus
What is the regulatory center of homeostasis in the brain? Hypothalamus
What relays information between the brain and the spinal cord? Brian Stem
Which receptor senses pain? Nociceptors
Created by: 12stephanie20
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