The projections on the superior surface of the tongue, some of which house taste buds, are the
A. tonsils.
B. cilia.
C. rugae.
D. glossal spines.
E. papillae.
E
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Which of the following statements concerning the vagina is false?
A) It serves as a passageway for the elimination of menstrual fluids. B) It receives the penis during sexual intercourse. C) It holds sperm prior to their passage to the uterus. D) It forms the lower portion of the birth canal. E) It loses a portion of its lining during menses.
A communicating junction acts to facilitate
A) the passage of ions between the cells. B) the passage of neurotransmitters between cells. C) a change in the permeability of the postsynaptic membrane. D) growth of Schwann cells. E) All of the answers are correct.
The lungs can be found in which cavity?
A. Mediastinum B. Spinal cavity C. Pleural cavity D. Abdominal cavity
In comparison to a low-density lipoprotein (LDL), a high density lipoprotein (HDL) contains
A. less lipid. B. less protein. C. more cholesterol. D. more carbohydrate. E. more amino acids.