When a muscle relaxes,
A. crossbridges form and muscle extensibility returns the muscle to rest length.
B. crossbridges form and muscle elasticity returns the muscle to rest length.
C. crossbridges stop forming and muscle elasticity returns the muscle to rest length.
D. crossbridges stop forming and muscle extensibility returns the muscle to rest length
C
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Which muscle tissue contains fibers with multiple nuclei?
A. Skeletal muscle B. Cardiac muscle C. Involuntary muscle D. Smooth muscle E. Visceral muscle
A researcher has questions about the functions of the greater omentum, an organ found in the abdominal cavity. They begin researching its various functions. This researcher is studying the physiology of the organ.
Answer the following statement true (T) or false (F)
Each of the following factors will increase cardiac output except:
a. increased venous return. b. secretion of acetylcholine onto the SA node c. increased EDV d. increased heart rate. e. increased force of ventricular contraction.
With secondary active transport, the movement of
a. Na+ into the cell by the cotransport carrier is downhill. b. Na+ into the cell by the cotransport carrier is uphill. c. glucose by the cotransport carrier is uphill. d. two of these answers. e. none of these answers.