Answer the following statements true (T) or false (F)
1. The hinge joint provides the widest range of motion for the body.
2. To increase the angle of a joint is the definition of flexion.
3. To increase the angle of a joint is the definition of extension.
4. To move a part of the body away from the midline is called adduction.
5. To move a part of the body toward the midline is called adduction.
1. FALSE
2. FALSE
3. TRUE
4. FALSE
5. TRUE
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The hormone insulin enhances the transport of glucose into body cells. Its secretion is controlled by a negative feedback system between the concentration of glucose in the blood and the cells that secrete insulin. Which of the following statements is most likely to be correct?
A. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration. B. A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration. C. A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration still further. D. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration still further.
In ECG tracings, extension of the P-R interval to more than 200 msec most likely can indicate which of the following?
A) coronary ischemia or myocardial damage B) congenital heart defect C) electrolyte disturbances D) damage to the conducting pathways E) inadequate blood supply to the heart
Dendritic or Langerhans cell function to:
a. produce melanin b. produce carotene c. help provide immunity d. produce new epidermal cells
The kidneys are supplied by the ________ arteries.
A. inferior mesenteric B. suprarenal C. lumbar D. renal