What type of receptors do norepinephrine and epinephrine bind in the heart?
A. Muscarinic
B. ?1-adrenergic
C. Nicotinic
D. ?-adrenergic
Answer: B
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Acid-base balance exists when
A) there is a balance between the rates of absorption across the digestive tract with rates of loss at the kidneys. B) the amount of water gain equals the amount of water loss. C) protein intake equals protein excretion. D) the net gain in sodium ions equals its net loss. E) the production of hydrogen ions is equal to their loss.
An elevated leukocyte count is indicative of infection. What procedure would give a physician a better guess at what type of infection?
A) a hemoglobin A1C test B) a platelet count C) a CBC D) a bleeding time test E) a differential white blood cell count
To tip the soles of the feet medially, so they face each other, requires ________. Tipping them out laterally so they face away from each other is ________.
A. medial excursion; lateral excursion B. inversion; eversion C. retraction; protraction D. opposition; reposition E. dorsiflexion; plantar flexion
Which type of bone cells package calcium and phosphate ions?
A. osteochondral progenitor cell B. osteoclasts C. osteoblasts D. osteocytes