The region known as the macula densa is part of
A) the proximal convoluted tubule.
B) the distal convoluted tubule.
C) the collecting duct.
D) the nephron loop (loop of Henle).
E) glomerular (Bowman's) capsule.
B
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________ techniques have been used to identify victims of the World Trade Center and Pentagon attacks and Thomas Jefferson's descendants.
A. Friction ridge analysis B. Carbon dating C. Hair analysis D. DNA fingerprinting
Which of the following is NOT a cardinal sign of diabetes mellitus?
A) polycythemia B) polyuria C) polydipsia D) polyphagia
Which membrane is thick, relatively waterproof, and usually dry?
A) subserous fascia B) cutaneous membrane C) deep fascia D) synovial membrane E) hypodermis
The trachea
A) is lined by dense regular connective tissue. B) is reinforced with C-shaped cartilages. C) contains the vocal cords. D) always maintains the same diameter. E) ends distally at the level of the diaphragm.