Two of the nerves of the lumbar plexus are the
A. femoral and sciatic nerves.
B. obturator and pudendal nerves.
C. pudendal and sciatic nerves.
D. femoral and obturator nerves.
Answer: D
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Which sympathetic pathway involves only a preganglionic axon going to the effector organ?
A. Splanchnic nerve pathway B. Adrenal medulla pathway C. Postganglionic sympathetic nerve pathway D. Spinal nerve pathway E. None of the choices is correct.
The diaphragm separates the ________ cavity from the ________ cavity.
A) pleural; mediastinum B) thoracic; abdominopelvic C) pericardial; pleural D) abdominal; pelvic E) pericardial sac; pericardial
Which of the following is an advantage of sheep?
a. industry competition c. excellent scavengers b. low meat production d. susceptible to disease
The predominant extracellular cation is ________.
A. Cl? B. bicarbonate C. H+ D. Na+ E. K+