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APHY 201 - Exam 3 Study Questions With 100% SURE ANSWERS
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APHY 201 - Exam 3 Study Questions With 100% SURE ANSWERS
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Practice questions for this set
b. fascicles
c. T-tubules
, d. crossbridges
e. sarcoplasmic reticulum
Which of these statements about the heart is FALSE?
2 a. Valves ensure one-way flow of blood through the heart.
b. Some myocardial cells are capable of spontaneous depolarization.
c. The action potential of a pacemaker cell is identical to that of a skeletal muscle cell.
The force exerted by a contracting muscle on an object is called:
a. the load
3 b. muscle tension
c. motor unit
d. complete tetanus
As action potentials travel down a T-tubule, a voltage-sensitive protein changes shape. This
shape change opens a ____ _.
4 a. Sodium channel
b. Potassium channel
c. Calcium channel
d. Sodium-potassium pump
Don't know?
Terms in this set (30)
The functional unit of a skeletal muscle fiber is the a. sarcomere
_____.
a. sarcomere
b. myofibril
c. sarcolemma
d. sarcoplasmic reticulum
e. myofilament
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APHY 201 - Exam 3 Study Questions
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