Veins carry blood in which direction?
A. back to the aorta
B. back to the heart
C. from the left ventricle to the systemic system
D. None of these answers is correct.
Answer: B
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A chronic degenerative disease of the brain indicated by hand tremors, rigidity, and shuffling gait is known as:
A) multiple sclerosis B) amyotrophic lateral sclerosis C) Parkinson disease D) Alzheimer disease
Identify the combining form esophag(o) with its closest definition.
A. appendix B. pancreas C. liver D. esophagus
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