Chapter 9 Muscles And Muscle Tissue

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Created Apr 13, 2012
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Cardiac and skeletal muscle are _____
striated
Cardiac and smooth muscle are also _______
involuntary
smooth muscle is typically found within the walls of hollow visceral organs, blood vessels,...
airways
A skeletal muscle cell is called a _____ fiber
muscle
epimysium

epimysium
perimysium

perimysium
fasicicles and endomysium and muscle fibers. 

fascicles
Functional unit of muscle contraction is the sarcolemma, sarcoplasmic reticulum, and _____
sarcoplasm
Thin myofilaments are composed of myosin, actin, and light chain _____
myokinase
The sarcoplasmic reticulum of muscle fibers is a storage site for calcium ions and releases...
by action potential
_  tubules are continuous with the sarcolemma
T
An action potential is a rapid up and down shift in the voltage across a membrane from the...
value
resting membrane potential is maintaned by
sodium potasium ATP pump
Acetyl choline is the neurotransmitter released from vesicles in the synaptic knob of the ____
neuron
Excitation-Contraction Coupling
1.) Nerve signal 2.) Calcium is released 3.) ACh diffuses across synaptic cleft 4.) Binding...
A ___ unit consists of a motor neuron and the muscle fibers it innervates. 
motor
The amount of tension generated by a muscle and the force of its contraction depends on how...
stimulation
Concentric muscle contraction ecentric
muscle curling up weight going down


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