Small Intestine (Smaller in width, longer in length)

Length: About 6 meters

Function: Main site for digestion and absorption of nutrients

Parts:

Duodenum – breaks down food

Jejunum – absorbs nutrients

Ileum – absorbs vitamins and leftover nutrients

Large Intestine (Wider, but shorter)

Length: About 1.5 meters

Function:

Absorbs water and salts

Stores undigested waste (which becomes feces)

Parts:

Cecum, Colon (ascending, transverse, descending, sigmoid), and Rectum

Key Differences (Point Form):

Length: Small is longer; Large is shorter

Width: Large is wider

Function:

Small – Digestion & nutrient absorption

Large – Water absorption & waste storage

Structure: Small is coiled; Large is more like a frame around it