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Science
Biology
Anatomy
Anatomy & Physiology Quiz 5
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Gravity
Quiz # 5
Terms in this set (73)
Stroke volume
Volume of blood ejected from the ventricles during each beat.
Ventricles
thicker or discharging; LV separated from RV by interventricular septum.
Atrium
thinner or receive chambers; LA separated from RA by interatial septum
Systole
Heart contraction
Diastole
heart relaxation
Tricuspid Valve
Located between the RA and RV
Bicuspid or mitral valve
Located between the LA and LV
Myocardium
called heart or cardiac muscle
Endocardium
inner lining of chambers
Epicardium
outer heart layer called pericardium
Sinoatrial node
pacemaker
Atrioventricular node
Bundle of his and branches- 2nd and 3rd components of the conducting system
Purkinie fibers
contraction of the ventricles
P wave
depolarization of the atria
QRS wave
depolarization of the ventricles
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Verified questions
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Distinguish among hypertonic, hypotonic, and isotonic solutions.
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Shannon, a 28-year-old, has been in the first stage of labor for 15 hours. Her uterine contractions are weak, and her labor is not progressing normally. Shannon and her doctor desire a vaginal delivery, so the physician orders that Pitocin (a synthetic oxytocin) be infused. What is the effect of this hormone?