Which statement about the ventilation/perfusion (V/Q) ratio in a healthy person is true?
A) Blood flow and amount of ventilation are equal throughout the lungs
B) The upper portion of the lungs has wasted ventilation
C) The amount of blood perfusion throughout the lungs is greater than the amount of oxygen in the lungs
D) The lower portion of the lungs has more oxygen than perfusion
B) The upper portion of the lungs has wasted ventilation
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The thalamic nuclei that help maintain consciousness are the:
a. Intralaminar nuclei b. Relay nuclei c. Reticular nuclei d. Association nuclei
The several layers of cells providing protection above the cell membrane are called the what?
A) Complex epithelium B) Stratified epithelium C) Layered epithelium D) None of the above
What is the most common material used for fire service ladders?
A. Steel B. Wood C. Aluminum D. Fiberglass
Which of the following are the grooves on the surface of the cerebrum?
A. Cerebellum B. Corpus callosum C. Convolutions D. Sulci E. Gyri