Madeleine is an active 18-year-old who fell off her bike, fracturing the medial epicondyle of her humerus. In addition to experiencing severe pain in her elbow, she experienced numbness along the medial side of her hand. She went to the emergency room and the physician examined her. What other muscle function could be impaired in this type of injury?
a. adduction of the thumb
b. flexion of the thumb
c. extension of the thumb
d. abduction of the thumb
a. adduction of the thumb
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The skin is sometimes referred to as the
A) cutaneous membrane. B) mucous membrane. C) serous membrane. D) synovial membrane. E) peritoneal membrane.
Once an SA nodal cell reaches threshold, the depolarization phase occurs during which
A. potassium moves out through fast voltage-gated channels. B. potassium comes in through fast voltage-gated channels. C. calcium comes in through fast voltage-gated channels. D. calcium moves out through slow voltage-gated channels. E. sodium moves out through slow voltage-gated channels.
Which of the following will increase the rate of a chemical reaction?
A. An increase in product concentration B. Enzyme inhibition C. A decreased temperature D. An increase in reactant concentration
Turning the foot so that the sole faces medially is an example of
A. supination. B. eversion. C. adduction. D. inversion.