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30 Cards in this Set
- Front
- Back
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what is the base for nerve and muscle excitation
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membrane potential
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what is membrane potential
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difference in electrical charge
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what does nerous tissue consist of
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neurons and neuroglia
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what do neuroglia do of
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protect and assist neurons
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what is another name of neuroglia
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glial cells
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what do neurons do
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detect stimuli and transmit info
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what are dendrites
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multiple short branched processes
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what do dendrites do
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recieve signals
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what does an axon do
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outputs signals
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what makes up most of the colume of nervous tissue
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glial cells
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what is muscular tissue responsible for
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movement
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what are the three types of muscle tissue
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skeletal smooth and cardiac
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what do skeletal muscles consist of
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muscle fibers
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where is skeletal muscle attatched to
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bones
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describe the nucleus in skeletal muscle
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multple nuclei located peripherally
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are skeletal muscles striated
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yes
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what control is the skeletal muscle under
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voluntary
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cardiac muscle cells are called what
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myocytes
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descrbe the nucleus situation in cardiac muscle
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one nucleus centrally located
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what is the appearance in cardiac muscle as far as striations go
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light striations
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what are myocytes joined by
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intercalated discs
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what do intercalated discs do
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allow electrical excitation
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what is cardiac muscle control
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involuntary
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describe smooth muscle
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no striations
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what is the control of smooth muscles
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involuntary
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what is the smooth muscle also called
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visceral muscle
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where is smooth muscle
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visceral organs
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describe the esophagus and small intestine smooth muscle
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two layers, one encircles the organ and one longitudinally
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what impacts blood pressure
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smooth muscle
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what are the connections inbetween one cell and another
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intercellular junctions
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