Which of the following is NOT a vasodilator substance produced in the extracellular fluid?
A. ADP
B. Lactate
C. CO2
D. ATP
Answer: D
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The muscle that raises the corners of the mouth as when smiling is the ________ muscle
A) orbicularis oculi B) zygomaticus major C) orbicularis oris D) masseter E) buccinator
Caffeine, nicotine, and alcohol all have effects on
A) long-term potentiation. B) synaptic activity. C) action potential conduction. D) neurotransmitter degradation. E) neurotransmitter reuptake.
What bone attaches the appendicular skeleton to the sternum?
A. Scapula B. Clavicle C. First rib D. Thoracic vertebra 1
Which of the following is NOT true of the pectoral girdle?
A. It consists of the clavicles and scapulae. B. The scapulae do not meet along their medial surfaces. C. The clavicles meet along their medial borders above the sternum. D. The loose attachment of the pectoral girdle to the humerus provides flexibility, but also increases shoulder injuries. E. All of these are true of the pectoral girdle.