Nervous System
An action potential is initiated by
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What is the difference between a nerve and a neuron?
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Impulses must travel from neuron to neuron and neuron to muscle cell in an uninterrupted chain so that all the important messages necessary for survival are properly conveyed. How are impulses transferred from a neuron cell to its receiving cell?
An electrical impulse travels down the axon of a neuron and is transferred to the receiving neuron through the release of neurotransmitters.
Your senses of touch, taste, smell, vision, and hearing are all part of which system evolved for what purpose?
They are all part of the sensory nervous system that have evolved to allow an animal to precive stimuli from the environment by translating a stimulus into a pulse of positively charged ions.
Correctly identify the structure labeled 1 in the image
axon
Identify B in the neuron cell
axon terminal
Identify C in the neuron cell pictured
cell body
The nervous system has three divisions, including the ______ nervous system made up of the brain and spinal cord, the _______ nervous system made up of the ________ which recieves input, and the __________ system which produces a response.
central, peripheral, sensory, motor
Identify A in the neuron cell pictured below:
dendrite
External signals are first picked up by which part of a neuron?
dendrites
The brain is divided into which of the following three main regions?
hindbrain, midbrain, and forebrain
Identify D in the neuron cell pictured
myelin
The axons of neurons are often enclosed by a fatty protective coating produced by glial cells called
myelin sheath
Correctly identify the structure labeled 3 in the image
neurotransmitter
Correctly identify the structure labeled 4 in the image
receptor that receives the neurotransmitter
Correctly identify the structure labeled 2 in the image
synaptic vesicle
This image below describes what overall process that occurs within in the nervous system?
the synaptic cleft where the signal from one neuron is transmitter to the next neuron
