Kyphosis is
A. the normal dorsal convexity in the thoracic region of the spine.
B. an exaggeration of the dorsal convexity in the thoracic region of the spine.
C. the normal dorsal concavity in the lumbar region of the spine.
D. an exaggeration of the dorsal concavity in the lumbar region of the spine.
Answer: B
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Which is TRUE about typical, resting neurons?
A. The plasma membrane is completely impermeable to potassium ions. B. The concentration of sodium ion is greater inside the cell than outside. C. The permeability of the plasma membrane to potassium ions is much greater than its permeability to sodium ions. D. The plasma membrane is completely impermeable to sodium ions. E. The plasma membrane is most permeable to sodium ions.
Which feature enables mammals to breathe and chew at the same time?
A. Large nasal conchae B. The perpendicular plate of the ethmoid bone C. The shape of the pterygoid process D. A hard palate that separates the oral and nasal cavities E. The presence of a hyoid bone
From which of the primary germ layers of the embryo does the epidermis of the skin develop?
a) Endoderm b) Ectoderm c) Mesoderm d) All of these choices are correct. e) Both endoderm and ectoderm.
Glomerulonephritis is inflammation of the
A) collecting ducts. B) peritubular capillaries. C) glomerular capillaries. D) glomerular capsule.