The system responsible for the exchange of gases between the blood and atmospheric air is the ________ system.
A. endocrine
B. cardiovascular
C. nervous
D. urinary
E. respiratory
Answer: E
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An elderly patient has a broken femur that is healing very slowly. A young resident suggests using a device that will create an electrical field in the area of the fracture to help speed the healing process. Why might this possibly help?
Venous valves are responsible for
A) preventing anterograde flow. B) channeling blood away from the heart. C) channeling blood toward the heart. D) preventing blood from re-entering a ventricle. E) regulating blood pressure in veins.
Which of the following would NOT lead to an increase in the strength and compression resistance of a connective tissue?
A) Increase the number of collagen fibers in the matrix. B) Decrease the number of collagen fibers in the matrix. C) Increase the concentration of proteoglycans in the ground substance. D) Align the fibers in the matrix in direction of most stress or force. E) All of these would increase the strength and compression resistance of a connective tissue.
The triceps surae consists of three muscles in the lower limb.
Answer the following statement true (T) or false (F)