Gas exchange between the air in the lungs and the blood takes place in the ________.
A. primary bronchi
B. alveoli
C. trachea
D. respiratory bronchi
E. terminal bronchioles
Answer: B
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In the blastocyst, the trophoblast will become __________, whereas the embryoblast will become __________.
A. part of the placenta; the yolk sac B. part of the placenta; the embryo C. the embryo; part of the placenta D. the embryo; the yolk sac E. the yolk sac; the embryo
Which of the following is not a molecule at the "metabolic crossroads" ?
a) Glucose 6-phosphate b) Pyruvic acid c) Acetyl coenzyme a d) Glycogen e) All of these are molecules at the "metabolic crossroads"
Patients with hyperosmolar hyperglycemic nonketotic coma:
A) present with severe dehydration and neurologic deficits. B) experience more severe acidosis than patients with diabetic ketoacidosis. C) typically require prehospital sodium bicarbonate therapy. D) most commonly have a history of type 1 diabetes mellitus.
Inability to feel or move below the level of the nipple line indicates injury to which spinal nerve root?
A) C7 B) T1 C) T4 D) L1