Contraction of the cremaster muscle
A) causes the characteristic wrinkling of the surface of the scrotum.
B) produces an erection.
C) propels sperm through the urethra.
D) moves sperm through the ductus deferens.
E) moves the testes closer to the body cavity.
A) causes the characteristic wrinkling of the surface of the scrotum.
You might also like to view...
The nucleus of a cell
A) it contains large proteins that form chromosomes and are the genetic material for the cell. B) is completely enclosed with no way in or out. C) is surrounded by a double membrane. D) contains only the DNA. E) has all of the above attributes.
Which of the following pressure (mm Hg) would be recorded as intra-alveolar pressure during a normal resting inspiration?
a. 756 b. 760 c. 764 d. 768 e. 0
Gustatory receptors are sensitive to dissolved chemicals but insensitive to light. This is due to
A) receptor specificity. B) accessory cells. C) the fact that they are interoceptors. D) receptor potentials. E) both accessory cells and the fact that they are interoceptors.
Hemoglobin releases the same amount of oxygen to all the tissues regardless of variations in their metabolic rate
Indicate whether the statement is true or false