Which of the following arteries is part of a circulatory pathway to the brain?
A. radial artery
B. cephalic artery
C. internal carotid artery
D. external jugular vein
E. axillary artery
C
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Parasympathetic preganglionic fibers leave the CNS in all of the following locations except
A) the midbrain. B) the pons. C) the medulla oblongata. D) spinal segments T1-L2. E) spinal segments S2-S4.
Which of the following formed elements in blood are removed by fixed macrophages in the spleen and liver after only 5 to 9 days in the circulation?
a) erythrocytes b) thrombocytes c) monocytes d) basophils e) eosinophils
Natural killer cells resemble ________ and develop from the same type of stem cell.
A. eosinophils B. neutrophils C. lymphocytes D. basophils
How are most nutrients absorbed in the digestive tract eventually transported out of the digestive system?
A) via the hepatobiliary duct B) through the aorta C) through the hepatic portal vein D) via pulmonary arteries E) via the pyloric valve