The ball-and-socket joint of the hip is replaced with a pivot joint in which the femur is directly planted into the acetabulum. What movement(s) is/are now the only one(s) possible?
A. Abduction and adduction
B. Rotation
C. Circumduction
D. Flexion and extension
Answer: B
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The parasympathetic division arises from the ________ regions of the spinal cord
A) sacral and lumbar B) brain, sacral, and coccygeal C) brain, lumbar, sacral, and coccygeal D) brain, thoracic, and lumbar E) brain and sacral
The heart valves
A. stabilize and hold the arteries leaving the heart. B. permit the passage of blood in one direction. C. are only used in the fetal heart. D. direct the conduction impulse through the heart muscle. E. separate the right and left sides of the heart.
When viewing an object in close distance, the lens should be more
A) rounded. B) flattened. C) convex. D) lateral. E) medial.
Inhaling through the nostrils is preferred over the mouth because
A) there is less resistance to air flow. B) it combines olfaction with respiration. C) it allows better conditioning of the inhaled air. D) bacteria won't be inhaled from the oral cavity. E) it dries out the mouth.