Which of the following blood vessels is a direct branch of the ascending aorta?
A) right subclavian artery
B) left internal carotid artery
C) right pulmonary artery
D) left brachiocephalic artery
E) right and left coronary arteries
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Question 2) What do the ventral roots and dorsal roots fuse to form?
A) the dorsal root ganglion
B) medulla oblongata
C) spinal nerves
D) the spinal cord
E) central canal
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Question 3) The correct sequence of layers of a typical blood vessel, from superficial to deep, are ________.
A) tunica media, tunica intima, tunica externa
B) tunica media, tunica externa, tunica intima
C) tunica externa, tunica media, tunica intima
D) tunica externa, tunica intima, tunica media
E) tunica intima, tunica media, tunica externa
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Question 4) The spinal cord terminates by vertebra ________.
A) C7
B) T3
C) T9
D) L3
E) S4
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Question 5) Which type of vessel is constructed only from tunica intima?
A) arteries
B) arterioles
C) capillaries
D) veins
E) venules
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Question 6) Which of the following brain dysfunctions is also known as a stroke?
A) cerebrovascular accident (CVA)
B) Alzheimer's disease
C) aphasia
D) cerebral edema
E) Parkinson's disease
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Question 7) Veins ________.
A) carry blood away from the heart
B) branch into smaller vessels called arterioles
C) transport oxygen-rich blood
D) operate under high pressure
E) often have valves to prevent the backflow of blood
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Question 8) The blood-brain barrier is effective against the passage of ________.
A) water
B) nutrients such as glucose
C) respiratory gases
D) fats
E) metabolic waste such as urea
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Question 9) Which of the following increases heart rate?
A) low levels of calcium
B) parasympathetic nervous system stimulation
C) vagus nerve stimulation
D) cold
E) epinephrine
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Question 10) Cerebrospinal fluid ________.
A) is secreted by the arachnoid villi
B) enters the four ventricles after filling and circulating through the subarachnoid space
C) is secreted mostly by the ependymal cells lining the brain ventricles
D) is continually formed mostly by the choroid plexuses
E) is identical in composition to whole blood
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