What property of neurons allows them to respond to changes in the environment?
A. Conductivity
B. Excitablity
C. Permeability
D. Secretion
Answer: B
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What vessels carry oxygen-poor blood toward the lungs for gas exchange?
A. Superior and inferior vena cavas B. Aorta and coronary arteries C. Pulmonary veins D. Pulmonary arteries
Which measurement would be most logical to describe the size of a cell?
A. 1–2 mm B. 10 um C. 2 cm D. 5–10 nm E. 1 dm
Which of the following is associated with acidosis?
a. Extreme nervousness b. Disorientation and comatose state c. Tingling, "pins and needles" sensations d. Muscle twitches and muscle spasms e. Convulsions
A 55-year-old woman develops a hiatal hernia in which the fundus of the stomach protrudes through the esophageal hiatus of the diaphragm into the thorax. Which of the following structures is/are at greatest risk of injury during surgical repair of this hernia?
(A) Thoracicduct (B) Azygosvein (C) Vagus nerves (D) Sympathetic chains (E) Superior epigastric vessels