4th Periodic Test (UnOffical)

The entry point of the food.

The first digestion stage is

while the tongue mixes the food with saliva ←this mixture is called

It connects the mouth and the esophagus.

It has a flap called the _______which closes the windpipe that is connected to the trachea,

A muscular tube that is approximately 25 cm long.

Receives food/bolus from the esophagus.

90% of the chemical digestions and absorption of food nutrients occur, and the remaining 10% happens in the stomach

3 segments of small intestine

Mainly for digestion and neutralization (first segment)

Primarily absorbs sugar, amino acids, and fatty acids (second segment)

Primarily absorbs anything that wasn’t absorbed in the jejunum. (Third Segment)

Digestion does not happen here

Responsible for reabsorption of water and mineral salts

The undigested food becomes

An expandable storage organ of undigested food or stool/feces

controls the releasing/holding of stool for a short period

The last part of the digestive tract. 2 inch long canal.

Located around the oral cavity

Contains water, mucus, and enzymes amylase

3 major parts of salivary glands

cleanse the teeth, and moisten and lubricate

Long narrow glands that stretch from the spleen through the duodenum.

chief hormone for metabolizing sugar.