Which statement about the dartos muscle is false?
A. The dartos muscle reacts to temperature changes.
B. The dartos muscle is the smooth muscle wall in the scrotum.
C. The contraction of the dartos muscle reduces the surface area of the scrotum to reduce heat loss.
D. If it is warm, the dartos muscle contracts to help keep the testes cool.
Answer: D
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The type of contraction where the tension exceeds the load is called
A) isometric contraction. B) isotonic eccentric contraction. C) isotonic concentric contraction. D) isometric concentric contraction. E) isometric eccentric contraction.
Increased metabolic activity and weight loss are associated with
A. hypothyroidism. B. cretinism. C. too little TSH. D. lack of iodine in the diet. E. hyperthyroidism.
If two vectors lying in the same plane are added together and the result is zero, then which of the following is true of the vector quantities?
A. they are equal in magnitude B. they are opposite in direction C. both A and B D. none of the above
Two of the four primary tissue types contain excitable cells, cells that receive stimuli and generate electrical signals. One of these is muscle tissue. Name the other
A) nervous B) connective C) epithelial