What is the degree of burn in which all three layers of skin have been destroyed and the victim feels no pain?
A. First
B. Second
C. Third
D. Fourth
Answer: C
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Microfilaments do not
A) anchor the cytoskeleton to membrane proteins. B) help determine the consistency of cytoplasm. C) produce cell movement, with myosin. D) consist of the protein called actin. E) distribute chromosomes to opposite ends of a dividing cell.
The lymphatic system differs from the cardiovascular system in that
A. the lymphatic vessels have their own "pump" to assist flow. B. the lymphatic system only carries fluid away from tissues. C. lymph circulates fluids and cardiovascular does not. D. lymph capillaries allow free movement of fluid in and out of the capillaries. E. lymph capillaries do not contain any fluid.
When the flexor muscles of one arm contract in a withdrawal reflex, the extensor muscles of the other arm contract. This phenomenon is called
A. crossed flexor reflex. B. crossed extensor reflex. C. ipsilateral reflex. D. flexor extensor reflex.
Which of the following could be defined by a movement analyst as a mechanical system?
A. entire human body B. right arm C. projected ball D. all of the above