Cells of the conducting system in the heart are more sensitive to which ion?
A) Chloride B) Iron C) Sodium D) Potassium
D
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The fourth ventricle is in the
A. right cerebral hemisphere. B. brainstem. C. left cerebral hemisphere. D. midline of the brain, beneath the corpus callosum.
The alveolar epithelium consists primarily of flat, pancake-like simple squamous cells called ________.
A. goblet cells B. tonsils C. pneumocytes D. capillaries
An increase in the length of the cardiac muscle fibers prior to contraction ____________________ the number of heart sounds heard
Fill in the blank(s) with correct word
A Caucasian patient with pale skin is treated for low blood pressure with medication that elevates the blood pressure; however, the skin's pallor does not change. Which of the following is the most likely cause of the pallor in this patient?
A. Respiratory disease that results in the blood being poorly oxygenated B. The presence of hematomas in the skin C. Hypertension caused by excessive use of the medication D. Anemia