The act of closing the fingers to make a fist is an example of what type of joint movement (at the interphalangeal joints)?
A. Flexion
B. Abduction
C. Extension
D. Rotation
Answer: A
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Which is not a function of the basal nuclei?
a. inhibition of muscle tone b. coordination of impulses related to posture c. suppression of unnecessary motor activity d. autonomic control e. None of the above are functions of the basal nuclei.
Phospholipids are important components of the plasma membrane. What does "C" represent on the diagram?
A. phosphorus B. oxygen C. nitrogen D. polar (hydrophilic) region E. nonpolar (hydrophobic) region
Using the figure below, identify the labeled part.
1) Label A: ______________________________
2) Label B: ______________________________
3) Label C: ______________________________
4) Label D: ______________________________
5) Label E: ______________________________
6) Label F: ______________________________
7) Label G: ______________________________
8) Label H: ______________________________
9) Label I: ______________________________
10) Label J: ______________________________
11) Label K: ______________________________
12) Label L: ______________________________
13) Label M: ______________________________
14) Label N: ______________________________
15) Label O: ______________________________
Skeletal muscles help maintain body temperature in that
A) excess myosin is quickly metabolized to yield heat. B) they conserve actin and myosin in cold weather. C) the more active they are, the more heat is released. D) the more active they are, the more heat is used up.