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• Left atrium
  ...]ated [[blood]] from the [[pulmonary veins]], and pumps it into the [[left ventricle]], via the atrioventricular valve. ...trium to the right - which will reduce cardiac output, potentially cause [[cardiac failure]] and in severe or untreated cases, death.
  3 KB (405 words) - 21:29, 21 September 2010
• Double circulatory system
  ...pon systemic resistance. The left circuit inclusive of the left atrium and ventricle (which pumps ''oxygenated'' blood into the systemic circulation) is better ...much faster than blood supplying the toes. During intense exercise, the [[cardiac output]] can increase fivefold.
  4 KB (680 words) - 21:29, 21 September 2010
• Cardiac muscle
  Name = cardiac muscle | ..., with both differing significantly from smooth muscle cells. In addition, cardiac muscle cells, like skeletal muscle cells, are multinuclear whereas smooth m
  12 KB (1,684 words) - 21:29, 21 September 2010
• Coronary circulation
  [[File:Cardiac vessels.png|right|230px|thumb|Schematic view of the heart vessels]] ...ary arteries requires [[cardiac catheterization]] or [[Computed tomography#Cardiac|CT coronary angiography]].
  9 KB (1,314 words) - 21:29, 21 September 2010
• Ventricle (heart)
  ...[interventricular septum]]), while '''intraventricular''' means within one ventricle (for example an [[intraventricular block]]). ...into the [[pulmonary circulation]] to/for the [[lung]]s, and the '''[[left ventricle]]''' pumps blood into the [[systemic circulation]] through the [[aorta]] (s
  8 KB (1,029 words) - 21:29, 21 September 2010
• Systole (medicine)
  '''Systole''' ({{pronEng|ˈsɪstɒli}}) is a phase of the [[cardiac cycle]] where the [[myocardium]] is contracting in a coordinated manner in ...nts of systolic contraction are often based on [[ejection fraction]] and [[cardiac output]].
  10 KB (1,375 words) - 21:29, 21 September 2010
• Diastole
  ...ely describes diastole as [[recoil]] opposed to [[coil]] or systole. '''[[Ventricle (heart)|Ventricular]] diastole''' is the period during which the ventricles ...valve]] opens, causing accumulated blood from the atrium to flow into the ventricle. An easy way to think about this, though untrue, is that diastole is a [[su
  4 KB (575 words) - 21:29, 21 September 2010
• Artery
  ...mic]] artery. It receives blood directly from the left [[Ventricle (heart)|ventricle]] of the heart via the [[aortic valve]]. As the aorta branches, and these a ...hich the greatest pressure drop occurs. The combination of heart output ([[cardiac output]]) and [[systemic vascular resistance]], which refers to the collect
  11 KB (1,603 words) - 21:29, 21 September 2010
• Isovolumetric contraction
  '''Isovolumetric contraction''' is a term used in [[cardiac physiology]] to refer to an event occurring in early [[systole (medicine)|s ...] enters the [[atrium (heart)|atria]] and flows to the [[ventricle (heart)|ventricle]]s via the opened [[tricuspid]] and [[mitral]] valves. Atrial contraction r
  3 KB (341 words) - 21:29, 21 September 2010
• Portopulmonary hypertension
  ...ransplant Proceedings 2005;37:3861-3864</ref> Patients tend to have a poor cardiac status, with 60% having stage III-IV NYHA heart failure.<ref name="LePavec" ...en those accepted and those denied, there was no significant difference in cardiac output or right atrial pressure).<ref>Krowka et al. Hepatopulmonary syndrom
  19 KB (2,689 words) - 21:29, 21 September 2010
• E/A ratio
  Diastolic relaxation is divided into four distinct phases during the cardiac cycle: ...E peak arises due to early diastolic filling. Most filling (70-75%) of the ventricle occurs during this phase.
  5 KB (804 words) - 21:29, 21 September 2010
• Ion channel
  ...al processes that involve rapid changes in cells, such as [[cardiac muscle|cardiac]], [[skeletal muscle|skeletal]], and [[smooth muscle]] [[Muscle contraction ...s these channels open under hyperpolarizing conditions, they function as [[Cardiac pacemaker|pacemaking]] channels in the heart, particularly the [[SA node]].
  31 KB (4,177 words) - 22:12, 21 September 2010

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