Alpha cells are to ________ as beta cells are to ________
A) glucagon; insulin
B) somatostatin; insulin
C) insulin; glucagon
D) glucagon; somatostatin
E) pancreatic polypeptide; insulin
Answer: A
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Which layer of blood vessels contains smooth muscle?
A) tunica externa B) tunica intima C) tunica media D) None of the listed responses is correct.
As blood is pumped from the left ventricle, it passed through the _____.
A) ductus arteriosus B) tricuspid valve C) mitral valve D) aortic semilunar valve E) pulmonary semilunar valve
Changes in the respiratory system that accompany aging include
A. overactive cilia, causing frequent coughing. B. thickening of the alveolar walls. C. thinning mucus. D. slowed swallowing reflex.
Which of the following muscles is involved in inversion at the ankle joint?
A) extensor digitorum longus B) tibialis anterior C) fibularis (peroneus) longus D) fibularis (peroneus) tertius