Describe skeletal muscle
-Striated
-Voluntary muscle
-Is 40% to 50% of body weight ("red meat" attached to bones)
Describe smooth muscle
-Nonstriated, involuntary, visceral muscle
-Found in walls of hollow visceral structures such as digestive tract, blood vessels, and
ureters
,-Contractions not under voluntary control; movement caused by contraction is
involuntary
Describe cardiac muscle
-comprises bulk of heart
-cells branch frequently
-Characterized by unique dark bands---intercalated disks
-intercalated disks allow cardiac muscle cells to contract efficiently as a whole unit
-Uninucleate
-Striated
-Involuntary control
, Identify the similarities between the three types of muscle.
-Smooth and cardiac are uninucleated, under involuntary control
-Cardiac and skeletal are striated
Describe Contractibility
ability to contract(shorten)
Describe Excitability
responds to stimulation
Describe Elasticity
ability to go back to resting state
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