What is needed to return a membrane to its resting membrane potential, with all ions in the correct locations?
A. Na+/K+ pump action
B. Outflow of K+ ions via passive ion channels
C. Outflow of Na+ ions via passive ion channels
D. Influx of negatively charged ions into the cell
Answer: A
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Fill in the blank(s) with the appropriate word(s).
If you were contracting and relaxing your masseter, what would you probably be doing?
A) swallowing B) blinking C) sticking out your tongue D) bending the neck to look down E) chewing or eating
________ tissue exhibits the characteristics of excitability, contractility, and elasticity
A) Connective B) Nervous C) Muscle D) Epithelial
A patient has shortness of breath, is experiencing severe chest pain, and is coughing up bloody sputum. What is the most likely diagnosis?
A) varicose veins B) atherosclerosis C) venipuncture D) pulmonary embolism