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: The '''heart''' beats faster when you [[exercise]].
: The '''heart''' is protected by the [[Rib Cage|rib cage]].
==Key Stage 3==
===Meaning===
[[File:HeartPicture.png|right|300px|thumb|A computer generated image of a [[heart]].]]
The [[heart]] is an [[organ]] which [[Pump|pumps]] [[blood]] around the body.
===About the Heart===
: The [[heart]] is made of [[Muscle Tissue|muscle tissue]], [[Connect Tissue|connective tissue]], Nerve Tissue|nerve tissue]], and [[blood]].
: The [[muscle]]s in the [[heart]] [[contract]] and relax to pump [[blood]].
: A healthy [[heart]] beats around 70 times per minute when you are resting.
: The [[heart]] beats faster when you [[exercise]].
: The [[heart]] is protected by the [[Rib Cage|rib cage]].