Due to its name and position in the forearm (posterior medial side of the forearm), the actions of the extensor carpi ulnaris are most likely to
A. flex the wrist and abduct the thumb.
B. flex the wrist and adduct the hand.
C. extend the wrist and abduct the hand.
D. flex the wrist and abduct the hand.
E. extend the wrist and adduct the hand.
Answer: E
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Energy sources available to form ATP in muscle fibers are below. Which statement is correct?
1 . phosphorylation of ADP by creatine phosphate 2 . oxidative phosphorylation of ADP in the mitochondria 3 . phosphorylation of ADP by the glycolytic pathway in the cytosol a. (1) and (2) produce the same amount of ATP b. (1) is the first sourced utilize to supply ATP to a contracting muscle c. (1) and (3) are considered aerobic d. (1) and (2) occur in the mitochondria e. none of these answers.
During aerobic exercise what is the primary means by which ATP is produced for contractile activity?
a. creatine phosphate. b. fermentation. c. oxidative phosphorylation. d. glycolysis. e. myoglobin.
Why do seals and sea lions retain zygapophyses in their backbones, while whales and sea cows do not?
How could we use this anatomy to determine the behavior of extinct whales (and what additional evidence do we have in one fossil whale to back up behavioral predictions)?
The covering of body surfaces and the lining of body cavities is composed of __________ tissue.
A. interstitial B. muscle C. adipose D. epithelial E. nervous