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Muscle Tissue

Muscle Tissue and Gross Anatomy

QuestionAnswer
skeletal muscle; striated or non-striated? striated
cardiac muscle; striated or non-striated? striated
smooth muscle; striated or non-striated? non-striated
which muscles are voluntary? skeletal muscle
which muscles are involuntary? cardiac and smooth muscle
what are the characteristics of skeletal muscle? long, cylindrical, and multinucleated
what are the characteristics of cardiac muscle? Y-shaped branching, and intercalated discs
what are the characteristics of smooth muscle? small, spindle-shaped, and single nuclei
what does 'striated' mean? refers to the alternating lines on the tissue (light/dark bands)
what does voluntary refer to? having conscious control over the tissue
what is the neuromuscular junction? it is the area where the nerve makes a connection with skeletal muscle
what is action potential? the electrical current that runs through our nerves and muscles
what is the somatic motor neuron axon? the extension of the nerve that carries an action potential to the skeletal muscle
what is the axon terminal? the bulbous swelling at the end of the nerve that connects to the skeletal muscle. this is the part of the nerve that connects to the skeletal muscle
what does terminal mean? end
where are the synaptic vesicles (transport sacs) located? within the axon terminal
describe the synaptic vesicles (transport sacs). contain ACh, an excitatory neurotransmitter that diffuses from the nerve to the muscle and initiates the new action potential on the skeletal muscle.
Created by: jxycemarie
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