The C shape of the tracheal cartilages is important because
A) large masses of food can move through the esophagus.
B) large masses of air can pass through the trachea and thus the bronchi.
C) it facilitates turning of the head.
D) the bronchi are also C-shaped.
E) it permits the trachea to pinch shut prior to sneezing.
A
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This structure contains unmyelinated axons and serves as a communication route between the right and left sides of the gray matter in the spinal cord.
A. Lateral commissure B. Posterior commissure C. White commissure D. Denticulate ligaments E. Gray commissure
The molecular formula for bicarbonate ion is HCO3-. It is therefore a
A. radioactive isotope. B. polyatomic cation. C. polyatomic anion. D. cationic compound.
The shaft of a long bone is called the
A) epiphysis. B) trabecula. C) canaliculus. D) diaphysis. E) lamella.
A patient who sustains a blow to the side of the head above the cheekbone cannot remember the words to a new song on the radio, no matter how many times he hears it. The head injury likely damaged his ________.
A. medial temporal B. inferior temporal C. inferior lateral D. prefrontal