Answers
Central Nervous System - Ans -(CNS) brain and spinal cord.
Peripheral Nervous system - Ans -Body Nerves that connect to the central nervous
system (brain and spinal cord). Connects the central nervous system to the body's organs
and limbs.
Autonomic Nervous System - Ans -Controls involuntary bodily functions (not
consciously controlled), such as breathing, the heartbeat, and digestive processes
Somatic Nervous System - Ans -Controls voluntary bodily functions (consciously
controlled), such as controlling skeletal muscles
2 Major Functions of Nervous System - Ans -1. Sensory Reception-end of peripheral
neurons monitor conditions( light,sound,temperature)
2. Integrative Functions- Sensory messages that get sent repeatedly get remembered
"motor functions" (subconscious actions)
Order of Stimulus (from sensory to effector) - Ans -1. Stimuli: physical or chemical
signal (ex. hot room)
2. Nerve impulse (ex. sends signal to brain)
3. Effectors: muscle & glands react (ex. sweat glands start sweating)
Stimulus - Ans -Things that initiate nerve impulses (ex. hot room)
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, Effector - Ans -Response (ex. Sweating)
Motor Functions - Ans -Complex muscle-and-nerve acts that produce movement
(walking, writing, typing running etc.)
"Electrochemical" - Ans -A nerve impulse is partially electric (change in
polarity/charge) and partially chemical (neurotransmitters)
Synapse - Ans -Where the nerve impulse is sent (connection of 2 neurons) .
Action Potential changes the charge of the synapse (causes electricity) and
Neurotransmitters are sent.
Myelin Sheath - Ans -Covering of Schwann Cells, Speeds up nerve impulses.
Axon - Ans -The long threadlike part of a nerve cell that carry the nerve impulse
Dendrites - Ans -Branch like extensions on a neuron that GET signals and connect to
the synapse
Neurotransmitters - Ans -Chemicals that transmit signals across a synapse from one
neuron to another 'target' neuron
Multipolar Neuron - Ans -Most of the brain/spinal cord & is mylinated
Bipolar Neuron - Ans -Found in eyes, nose, and ears
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