Define pacemaker system
What will be an ideal response?
Maintains the regular rhythm of the heart.
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The function of red blood cells is to
A) carry nutrients from the digestive system to the body's cells. B) defend the body against infectious organisms. C) remove carbon dioxide from the lungs. D) remove nitrogenous wastes from active tissues. E) carry oxygen from the lungs to the body's cells.
Where are the giant multipolar neurons called Purkinje fibers found?
A. The reticular formation B. The cerebral cortex C. The dorsal horn of the spinal cord D. The ventral horn of the spinal cord E. The cerebellum
Which anatomical term is correctly matched with its description?
A. Fossa - a ridge extending along the long axis of the bone B. Spine - a low ridge C. Tuberosity - a flat, tongue-shaped process D. Meatus - a tunnel E. Condyle - a small, rounded bump
Small arteries that direct blood into capillary beds are:
A) elastic arteries B) muscular arteries C) arterioles D) capillaries