Larry's muscles weakened while he played tennis for hours on a hot summer afternoon. This inability to maintain intensity is defined as:
A) muscular fatigue. B) atrophy. C) hypertonia. D) hypotonia.
Answer: A
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What is the function of the roughened tubercles at the proximal end of the humerus?
A. They serve to attach ligaments. B. They are for the attachment of muscles by way of tendons. C. They accommodate the passage of the biceps brachii tendon. D. They are the points of attachment between the scapula and humerus. E. They are attachment points for the periosteum.
Which part of the brain exerts the most control over the autonomic nervous system?
A. The cerebral cortex B. The midbrain C. The hypothalamus D. The thalamus E. The medulla oblongata
A(n) ________ is a substance that consists entirely of atoms with the same atomic number.
Fill in the blank(s) with the appropriate word(s).
Atrial contraction
A) begins during the latter part of the P wave. B) begins just after the Q wave. C) begins during the first part of the P wave. D) begins just after the T wave. E) None of the answers are correct.