A certain drug decreases heart rate by blocking a receptor on cardiac pacemaker cells. This drug probably binds to ________ receptors
A) nicotinic cholinergic
B) muscarinic cholinergic
C) alpha-1 adrenergic
D) alpha-2 adrenergic
E) beta-1 adrenergic
Answer: E
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Vertebrae in which region are fused in adults?
A) sacral vertebrae B) cervical vertebrae C) thoracic vertebrae D) lumbar vertebrae
Which cranial nerves have motor functions only?
A) oculomotor, trochlear, abducens, accessory, and hypoglossal nerves B) olfactory, optic, oculomotor, and trochlear nerves C) vestibulocochlear, glossopharyngeal, and vagus nerves D) trochlear, trigeminal, and facial nerves E) oculomotor, trigeminal, abducens, facial, vagus, and accessory nerves
The cruciate ligaments attach to the ________ of the tibia.
A) intercondylar area B) epicondyles C) anterior tuberosity D) condyles E) None of the answers are correct.
The basic unit of heat energy is the kilocalorie, which is the amount of heat required to raise the temperature of 1 g of H2O by 1°C
a. True b. False Indicate whether the statement is true or false