Questions with the keyword 'heart'

• where is our heart and our lungs ? by Brie mode fearless to Theresia Comments: (No comments so far )
• how does our heart work ? by Brie mode fearless and 1 other. to Theresia, Andy, Duane, Giovanna, Katie Comments: (No comments so far )
• what happens when our heart stops beating ? by Brie mode fearless to Theresia Comments: (So far, one comment )