All fibers of the triceps brachii are innervated by the __________.
A. humeral nerve
B. axillary nerve
C. ulnar nerve
D. radial nerve
Ans: D. radial nerve
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What is the mechanism called that pushes blood from the lower veins to the chest veins due to a pressure difference?
a. chest flow b. chest gradient c. chest pump d. respiratory pump e. respiratory gradient
Which of the following are limitations of DNA polymerase?
It can only add bases to the exposed 3' end of a pre-existing strand. It can only replicate the leading strand. It can only replicate the lagging strand. None of the choices are correct.
Semen is
A. responsible for engorgement of erectile tissue of the penis. B. sperm cells plus the secretions of accessory glands. C. is composed only of sperm cells. D. a vaginal secretion needed to activate sperm cells. E. produced solely by the testis.
Which of the following is true regarding the tendon reflex?
A) It makes the ipsilateral motor neurons relax. B) It causes a muscle that is being stretched to contract. C) It prevents overcontraction of a muscle. D) It makes the contralateral motor neurons contract. E) It causes a tendon to contract.