A deficiency of acetylcholine receptors leads to muscle paralysis in myasthenia gravis
Indicate whether the statement is true or false
TRUE
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How does severe vomiting cause a metabolic alkalosis?
A) production of bicarbonate B) production of hydrogen ions C) loss of hydrogen ions D) loss of bicarbonate E) loss of phosphate
Chemoreceptors in the carotid and aortic bodies
A. primarily respond to changes in blood oxygen levels. B. become important in the control of breathing when oxygen declines, but carbon dioxide is normal. C. function in conditions such as being at high altitudes. D. produce an increase in the rate and depth of breathing E. have all of these characteristics.
In a normal electrocardiogram, the
A. P wave occurs after the QRS complex but before the T wave. B. QRS complex results from ventricular depolarization. C. P wave results from repolarization of the atria. D. repolarization of the atria is clearly visible. E. T wave represents depolarization of the atria.
What is the function of prolactin in males?
A. Stimulates milk production in the mammary glands B. Regulates water and electrolyte balance in the kidneys C. Stimulates growth of sperm cells D. None of the choices are correct.