Top 10 heaviest organs in the human body.

Heaviest organs in the body

1. Skin: 4,535g 
function: Protects against pathogens; provides insulation; synthesizes vitamin D; regulates temperature; provides sensation

 2. Liver: 1,560g 
function: Breaks down toxins; produces hormones, proteins and digestive biochemicals; regulates glycogen storage

3. Brain: 1,500g 
function: Drives executive functions such as reasoning; coordinates responses to changes in environment

 4. Lungs: 1,300g 
function: supplies oxygen to be distributed around the body; expels carbon dioxide that is created around the body

 5. Heart: 300g 
function: Pumps oxygenated blood from lungs around the body; pumps deoxygenated blood to the lungs

 6. Kidneys: 260g (pair) 
function: remove waste products; regulate sodium and water retention; filter blood; produce urine and hormones

 7. Spleen: 175g 
function: filters blood; holds a reserve supply of blood; recycles iron; synthesizes antibodies; removes bacteria

 8. Pancreas: 70g
 function: Produces insulin and glycogen; secretes enzymes that assist in the absorption of nutrients in the small intestine

 9. Thyroid: 20g 
function: controls body’s energy use; makes proteins; controls hormone sensitivity

10. Prostate gland: 11g 
function: secretes an alkaline fluid that constitutes 50-75 per cent of the volume of semen