The posterior side of the thigh, leg, and foot is served by the ________ nerve.
A) obturator
B) common fibular
C) tibial
D) femoral
C) tibial
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Which action causes the closure of the right atrioventricular valve?
A. Contraction of the right ventricle B. Contraction of the left atrium C. Contraction of the left ventricle D. Contraction of the right atrium E. None of these answers is correct.
Which of the following is not a factor that contributes to keeping the articular surfaces of diarthroses in contact?
A) structure and shape of the articulating bone B) arrangement and tension of the muscles C) strength and tension of joint ligaments D) number of bones in the joint
An essential amino acid
A. can be formed from lipids in the body. B. must be supplied in the diet. C. can be synthesized by the body if there is enough nitrogen. D. must be made from glucose. E. cannot be converted to nonessential amino acids.
An extended period of time between the P wave and the QRS complex may indicate which of the following?
A. Ventricular contraction is faster than usual. B. Ventricular contraction is taking longer than usual. C. The signal is taking too long to get to the AV node. D. The signal is traveling too quickly to the AV node. E. The atria are not contracting.