Diffusion occurs when molecules move against their concentration gradients
Indicate whether the statement is true or false
FALSE
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In order to stabilize the hyoid so that the larynx can be elevated in swallowing, the ________ muscle group is used.
A. infrahyoid B. auricularis C. suprahyoid D. pterygoid E. hyoglossus
Which is one of the largest muscles in the body and the one most responsible for extending and laterally rotating the thigh?
A. Gracilis B. Pectineus C. Sartorius D. Tensor fasciae latae E. Gluteus maximus
Most of the reabsorption of filtered calcium is unregulated and occurs in the ________, but an additional amount can be reabsorbed in the ________, depending on the plasma concentration of parathyroid hormone.
A. proximal convoluted tubule; descending loop of Henle B. distal convoluted tubule; medullary collecting ducts C. distal convoluted tubule; renal corpuscle D. distal convoluted tubule; proximal convoluted tubule E. proximal convoluted tubule; distal convoluted tubule
Answer the following statements true (T) or false (F)
1. An ECG is a graphic representation of the heart’s electrical activity. 2. An unusual P wave tracing on an ECG would indicate a problem with ventricular depolarization. 3. The QRS complex on an ECG measures the repolarization of the ventricles. 4. The T wave tracing measures atrial repolarization. 5. Depolarization occurs just before contraction.