science 1st

digestion

_____ is the process by which our body breaks down food into nutrients that can be anbsorbed and used for energy, growth, and cell repair

mouth

digestion begins in this organ, where food is chewed and mixed with saliva containing enzymes that start breaking down carbohydrates

esophagus

it is a muscular tube that transports food from the mouth to the stomach through coordinated contractions known as peristalsis

stomach

this is a sac-like organ where food is mixed with gastric juices, including hydrochloric acid and enzymes, to further break down proteins

small intestine

this organ is the primary site for digestion and nutrient absorption.

large intestine

this organ absorbs water and minerals from the remaining indigestible food matter and compacts it into feces

rectum&anus

this organ is the final section where waste is stored before being excreted from the body.

liver

this organ produces bile, which helps in the digestion of fats

pancreas

this organ secretes enzymes that assist in digesting proteins, fats, and carbohydrates

gall bladder

this organ stores and concentrates bile, releasing it into the small intestine as needed.

what are the four main stages of digestion?

ingestion, digestion, absorption, excretion