The ability of the brain to maintain optimum blood pressure by speeding up or slowing down the heart is an example of
a. intrinsic control d. Both a and c
b. extrinsic control e. Both b and c
c. positive feedback
B
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Hemorrhage with a large loss of blood causes ________
A) no change in blood pressure but a slower heart rate B) a lowering of blood pressure due to change in cardiac output C) no change in blood pressure but a change in respiration D) a rise in blood pressure due to change in cardiac output
Spastic paralysis occurs when
a. descending excitatory pathways are destroyed b. excitatory inputs to motor neurons are unopposed because of disruption of an inhibitory system in the brain stem c. muscle spindles are destroyed d. the cerebellum is damaged e. the motor neurons are destroyed
Most limb bones are classified as what shape?
A. Short B. Flat C. Irregular D. Long E. Wide
Following an injury to his arm, a patient complains that he has no sensations from his "pinky." You suspect that he has damaged the
A. median nerve. B. radial nerve. C. musculocutaneous nerve. D. ulnar nerve. E. axillary nerve.