Which of the following is an example of an isometric contraction?
A) shaking the head as to say "no"
B) pushing against an immovable wall
C) bending the elbow
D) rotating the arm
E) nodding the head as to say "yes"
B
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Which is not a function of the blood-brain barrier?
A. It protects brain neurons from exposure to abnormal hormone levels. B. It protects brain neurons from exposure to abnormal ion levels. C. It prevents brain neurons from being exposed to waste products in the blood. D. It prevents nicotine and alcohol from entering brain interstitial fluid. E. It prevents brain neurons from being exposed to drugs.
Rotation occurs when you have movement around a(n) ________
A) Axis B) Ball and socket C) Vessel D) Vertebrae
Molecules with the same atoms, in the same sequence, but arranged differently in space are called ________.
A. functional groups B. structural isomers C. aromatic molecules D. stereoisomers
This region of the neck is defined by the sternocleidomastoid muscle anteriorly. It contains many nerves
A) anterior triangle B) anterior line C) trapezoid space D) posterior triangle