A major difference between slow- and fast-twitch fibers is that
A) one neuron may innervate thousands of slow-twitch fibers.
B) one neuron may innervate as few as 10 fast-twitch fibers.
C) slow-twitch fibers are important for sustained contraction.
D) all of the above.
D
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The extracellular matrix is made of _______________________
a. fibers and ground substance b. fibers only c. ground substance only d. ground substance and cells
College students and military recruits in crowded situations are at higher risk for developing
A) melanoma. B) diabetes. C) meningitis. D) septicemia.
Direct effects of radiation
are not a concern if the patient is properly protected. include damaging effects on a biological, cellular, or molecular level. are only controlled by the type of x-ray unit you use. cannot be measured.
An AP thoracic projection with poor positioning demonstrates closed eighth through twelfth in-tervertebral disk spaces. How was the patient mispositioned for such a projection to be obtained?
a. The patient was rotated toward the left side. b. The patient's knees and hips were extended. c. The long axis of the vertebral column was laterally tilted. d. The patient's head was on a thick pillow.