Original Resolution: 1600x1689 Heart And Lungs Internal Organs In A Male Human Body Anatomy Of People Part Of The Human Heart Anatomy D Stock Vector Illustration Of Atrium Biology 148566379 The structure of the trachea is supported by rings of cartilage that keep it from collapsing. 475x282 - The average heart expands and contracts about 100,000 times each day, pumping close to 2,000 gallons (7,571 liters) of blood throughout the body.
Original Resolution: 475x282 Pin On Projects To Try In the lungs, carbon dioxide is exchanged for oxygen. 612x525 - The structure of the trachea is supported by rings of cartilage that keep it from collapsing.
Original Resolution: 612x525 89 585 Human Heart Stock Photos Pictures Royalty Free Images Istock Hearts are the symbol of love! 1350x1800 - The pain caused by a heart attack feels like a tight ache, squeezing or fullness in the left or center of the chest.
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