Which of the following would cause stroke volume to increase?
A) when venous return is decreased
B) when ventricular contraction is reduced
C) drugs that stimulate beta-1 receptors
D) decrease in heart rate
E) decreased sympathetic stimulation
C
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The lubricating secretions of the walls of the thoracic cavity and the outsides of the lungs come from goblet cells.
Answer the following statement true (T) or false (F)
Some amino acids can be synthesized by the body. Such an amino acid would be classified as a nonessential nutrient
Indicate whether this statement is true or false.
The major extrinsic muscle of the hand that the ulnar nerve controls is the ________.
Fill in the blank(s) with the appropriate word(s).
The region of the stomach that empties into the duodenum is the
A) antrum. B) fundus. C) body. D) cardia. E) pylorus.