Increased levels of carbon dioxide in the blood will result in decreased
A) heart rate.
B) cardiac output.
C) blood flow to the lungs.
D) parasympathetic stimulation of the heart.
E) sympathetic stimulation of the heart.
D
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The lateral malleolus found on the distal end of the fibula is often known as the:
A) heel bone. B) kneecap. C) lateral ankle bone. D) medial ankle bone.
The output energy of all receptors is a type of ________ energy
A) chemical B) nuclear C) mechanical D) electrical E) thermal
Which one of the following best describes the order of a somatic reflex?
A) Somatic receptor ? efferent nerve fiber ? afferent nerve fiber ? interneuron ? skeletal muscle B) Somatic receptor ? interneuron ? afferent nerve fiber ? efferent nerve fiber ? skeletal muscle C) Somatic receptor ? efferent nerve fiber ? interneuron ? afferent nerve fiber ? skeletal muscle D) Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? smooth muscle E) Somatic receptor ? afferent nerve fiber ? interneuron ? efferent nerve fiber ? skeletal muscle
When a skeletal muscle works hard,
A) PO2 and pH increase. B) pH increases and PCO2 declines. C) pH declines and PCO2 increases. D) pH and PCO2 increase. E) pH and PCO2 decline