Which joint in the body has the most range of motion?
A. sternoclavicular
B. acromioclavicular
C. glenohumeral
D. humeroulnar
C. glenohumeral
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During repolarization of a neuron:
A) potassium ions move out of the cell. B) sodium ions move into the cell. C) sodium ions move out of the cell. D) potassium ions move into the cell.
You and your lab partner are doing an experiment in physiology lab. Each of you has an isolated muscle cell and you are supposed to stimulate it with an electrode as soon as its absolute refractory period ends. You're watching an electromyograph tracing to know when to use the electrode. Your partner has a cardiac muscle cell and you have a skeletal muscle cell. Which one of you will use your electrode more times in one minute?
A. You both will use the electrode the same number of times. B. Your partner will use the electrode more times in a minute than you will. C. You will use the electrode more times in a minute than your partner will. D. The number of times you will use the electrode in a minute cannot be determined by this information alone.
Which of the following must the human body obtain from the environment in order to survive?
A. Nitrogen B. Water C. Carbon dioxide D. Wastes
Which of the following planes divides the body into cranial and caudal parts?
A) midsagittal B) transverse C) dorsal D) sagittal