Air normally moves into the lungs from the:
a. Higher pressure within the lungs during inspiration
b. Increased intrathoracic pressure during inspiration
c. Positive pressure forcing air into the lungs
d. Pressure gradient created when the lungs expand
Answer: d. Pressure gradient created when the lungs expand
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The right and left cerebral hemispheres are connected by the:
a. Corpus callosum b. Grey matter c. Diencephalon d. Cerebellum
A male patient fell 20 feet from a cliff to a trail below. The primary assessment shows him to be confused, with an open airway and shallow breathing. His pulse is 72 beats per minute and his blood pressure is 78/50 mmHg. The skin is warm and flushed. The patient has no motor ability or sensation in his legs. Which one of the following is the MOST likely cause of this patient's presentation?
A) Hypoglycemia B) Internal bleeding C) Hemorrhagic shock D) Spinal injury