Imran Arif BIO 203.03
Pre-lab 7
Vocabulary
Systole- The time at which ventricular contraction occurs.
Atrium- The upper chambers of the heart.
Ventricles- The lower chambers of the heart which pump blood to the body.
Pacemaker- An object or substance that influences the rate at which a certain phenomenon occurs, often used alone to indicate the natural cardiac pacemaker.
Sinoatrial Node- The impulse generating (pacemaker) tissue located in the right atrium.
Sinus Venosus- An enlarged region between the vena cava and the right atrium, which houses the pacemaker in the amphibian heart.
Electrocardiogram- An recording of the electrical activity of the heart on a moving strip of paper. The electrocardiogram detects and records the electrical potential of the heart during contraction.
Dipole- A molecule that has both negative and positive charges.
P wave- The start of the measure in electrical activity on the ECG of the heart.
QRS......
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Approximate Word Count: 555
Approximate Pages: 3 (260 words per double-spaced page) |