Which of the following is not a branch of the aortic arch?
A. Left subclavian artery
B. Left common carotid artery
C. Right subclavian artery
D. Brachiocephalic trunk
E. All of these are branches of the aortic arch.
Answer: C
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What is the purpose of the three ankle ligaments on the outside of the foot?
A. Providing a place to grow pedal cartilage B. Giving form to the bony skeleton of the foot C. Preventing athletic sports injuries to the foot D. Holding together freely moving ankle joints
When chemoreceptors in blood vessels detect high levels of carbon dioxide in the blood, they stimulate all of the following changes EXCEPT
a) increased vasoconstriction of arterioles. b) increased blood pressure. c) decreased respiratory rate. d) increased sympathetic stimulation of arterioles and veins. e) increased vasoconstriction of veins.
The first branch of each spinal nerve, which communicates with an autonomic ganglion, is myelinated and is called a ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is descriptive of skeletal muscle fibers?
A) Skeletal muscle fibers lack a sarcolemma and myofibrils. B) Skeletal muscle fibers are smaller than most cells. C) Skeletal muscle fibers are uninucleate. D) Skeletal muscle fibers are striated.