The striated appearance of skeletal muscle is due to the
a. orderly arrangement of the T tubules
b. orderly arrangement of the lateral sacs of the sarcoplasmic reticulum
c. orderly arrangement of the thick and thin filaments into A and I bands
d. orderly arrangement of the motor units
e. presence of white and red muscle fibers within the muscle
C
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A muscle that dorsiflexes the foot is the
A) tibialis anterior. B) tibialis posterior. C) peroneus brevis. D) soleus. E) gastrocnemius.
The right atrioventricular valve is also called the
a. tricuspid valve. b. left atrioventricular valve. c. bicuspid valve. d. mitral valve.
As pressure in the aorta rises due to atherosclerosis, more ventricular pressure is required to open the aortic valve
Indicate whether the statement is true or false
What muscle action means to bring the thumb to the palm?
A. Opposition B. Elevation C. Reposition D. Depression