A herniated disc occurs when
A. the body of a vertebra is fractured.
B. the covering of the spinal cord is torn.
C. there is a fracture of the vertebral arch.
D. there is protrusion of the nucleus pulposus.
E. spinal nerves are cut.
D
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Why do inhaled foreign objects lodge more frequently in the right main bronchus than the left?
A. Objects tend to be drawn toward the left main bronchus because air pressure is slightly lower in the left lung. B. The right main bronchus is more horizontal than the left. C. The right main bronchus is wider and more vertical than the left. D. The right main bronchus angles more sharply from the trachea. E. The right main bronchus is longer than the left.
In fetal circulation the descending aorta carries the less oxygenated blood from the
_________. A) ligamentum arteriosum. B) foramen ovale. C) ductus arteriosus. D) ductus venosus.
Identify the posterior most region of the hard palate.
a. Palatine process. b. Palatine bone. c. Vomer. d. Sphenoid. e. Palatine bone.
Which of the choices below is not a glomerular filtration rate control method?
A) renal autoregulation B) neural regulation C) electrolyte levels D) hormonal regulation