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Created page with "==Key Stage 4== ===Meaning=== right|300px|thumb|A [[diagram showing the 4 chambers of the heart with the '''atria''' at the top.]] The '''atria'..."
==Key Stage 4==
===Meaning===
[[File:HeartChambers.png|right|300px|thumb|A [[diagram]] showing the 4 chambers of the [[heart]] with the '''atria''' at the top.]]
The '''atria''' are chambers in the [[heart]] where [[blood]] enters through [[vein]]s.
===About the Atria===
: The [[heart]] has two '''atria'''. A [[Right Atrium|right '''atrium''']] and a [[Left Atrium|left '''atrium''']]
: The [[Right Atrium|right '''atrium''']] receives [[deoxygentated]] [[blood]] from the body though a [[vein]] called the [[Vena Cava]].
: The [[Left Atrium|left '''atrium''']] receives [[oxygentated]] [[blood]] from the [[lung]]s though a [[vein]] called the [[Pulmonary Vein|pulmonary vein]].
===Meaning===
[[File:HeartChambers.png|right|300px|thumb|A [[diagram]] showing the 4 chambers of the [[heart]] with the '''atria''' at the top.]]
The '''atria''' are chambers in the [[heart]] where [[blood]] enters through [[vein]]s.
===About the Atria===
: The [[heart]] has two '''atria'''. A [[Right Atrium|right '''atrium''']] and a [[Left Atrium|left '''atrium''']]
: The [[Right Atrium|right '''atrium''']] receives [[deoxygentated]] [[blood]] from the body though a [[vein]] called the [[Vena Cava]].
: The [[Left Atrium|left '''atrium''']] receives [[oxygentated]] [[blood]] from the [[lung]]s though a [[vein]] called the [[Pulmonary Vein|pulmonary vein]].