Chapter 9 Muscles and Muscle tissue

18 cards

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Created Apr 13, 2012
by
briannoe23

 

 
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1
Cardiac and skeletal muscle are _____
 
striated
2
Cardiac and smooth muscle are also _______
 
involuntary
3
smooth muscle is typically found within the walls of hollow visceral organs, blood vessels,...
 
airways
4
A skeletal muscle cell is called a _____ fiber
 
muscle
5
epimysium
 
epimysium
6
perimysium
 
perimysium
7
fasicicles and endomysium and muscle fibers. 
 
fascicles
8
Functional unit of muscle contraction is the sarcolemma, sarcoplasmic reticulum, and _____
 
sarcoplasm
9
Thin myofilaments are composed of myosin, actin, and light chain _____
 
myokinase
10
The sarcoplasmic reticulum of muscle fibers is a storage site for calcium ions and releases...
 
by action potential
11
_  tubules are continuous with the sarcolemma
 
T
12
An action potential is a rapid up and down shift in the voltage across a membrane from the...
 
value
13
resting membrane potential is maintaned by
 
sodium potasium ATP pump
14
Acetyl choline is the neurotransmitter released from vesicles in the synaptic knob of the ____
 
neuron
15
Excitation-Contraction Coupling
 

1.) Nerve signal

2.) Calcium is released

3.) ACh diffuses across synaptic...

16
A ___ unit consists of a motor neuron and the muscle fibers it innervates. 
 
motor
17
The amount of tension generated by a muscle and the force of its contraction depends on how...
 
stimulation
18

Concentric muscle contraction

 

ecentric

 

muscle curling up

 

weight going down

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