Perilymph is found in the ________
A) auditory tube
B) membranous labyrinth
C) external acoustic meatus
D) bony labyrinth
D
Explanation:
A) The auditory tube does not contain perilymph.
B) The membranous labyrinth contains endolymph.
C) The external acoustic meatus does not contain any fluid.
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Most people retain adequate kidney function in old age. Why?
A. Nephrons use blood more efficiently. B. Glomeruli grow new blood vessels through life. C. A loss of nephrons does not radically impair function because there are so many to begin with. D. Decreased activity in old age leads to a decrease in production of toxins. E. Older people drink less fluid and therefore have less need to produce urine.
Which cell type is targeted by the human immunodeficiency virus (HIV)?
A. Helper T-lymphocyte B. Memory B-lymphocyte C. Cytotoxic T-lymphocyte D. Natural killer cell E. Plasma cell
During development, tissue called ___________ differentiates to form the connective tissues of cartilagenous and fibrous joints
Fill in the blank with correct word.
The ABO blood group is determined by __________ in the plasma membrane of RBCs.
A. glycolipids B. glycoproteins C. antibodies D. antigen-antibody complexes E. agglutinins