Because of its weight-bearing capacity, the ________ spine is especially susceptible to injury.
A) cervical
B) thoracic
C) lumbar
D) coccygeal
Ans: C) lumbar
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Stephanie is in a car accident, flung from her vehicle and landing on her back on pavement. At the scene, an emergency medical technician checks her Babinski reflex, in which the great toe extends upward and the smaller toes fan apart. This reflex
A. is meaningless in assessing an emergency situation. B. is normal in adults. C. may indicate aging of the corticospinal tract. D. may indicate an injury to the corticospinal tract.
When the pH rises above 7.45, a state of ________ exists
A) apotheosis B) alkalosis C) ptosis D) hydrosis E) acidosis
Answer the following statements true (T) or false (F)
1. The spine has three curves; two convex and one concave. 2. Because the last two sets of ribs are not attached to any other bones in the body, they are called floating ribs. 3. Only the true ribs attach to the sternum by the costal cartilage. 4. The olecranon process of the humerus and the olecranon fossa of the ulna make up the structure of the elbow. 5. The indentation in the femur where the patella or kneecap fits is called the acetabulum.
What factors determine the maximum frequency of action potentials conducted by an axon?
What will be an ideal response?