Science L1 Q5
Cards (25)
- Food energy is usually measured -calories(kcal or Cal.)
- Ingestion - It is the journey of taking in food or any substance into the body through the mouth.
- Digestion - It is the process that involves break down of large food molecules into smaller molecules for easy absorption of the cells.
- C. Absorption - It occurs mostly in the small intestine. is the process of passing the soluble food molecules in the wall of the small intestine.
- Assimilation - It is the movement of digested food nutrients into the blood vessels of the small intestine through diffusion and use of nutrients into the body cells to provide energy
- Elimination - release of undigested food collected in the rectum called feces and pushed out of the body through the anus.
- Mouth - mechanically break down food into small pieces.
- Bolus - formedmoist ball so it can be easily swallowed.
- Pharynx - Common passage of food and air.
- epiglottis - A flap-like cartilage that covers the larynx so that no food particle enter the trachea during swallowing.
- Esophagus - A tube that attaches the mouth to the stomach.
- Esophagus - Came from the Greek word meaning “to carry what is eaten.”
- peristalsis - A series of wave-like muscle contraction. Push and transport foods and liquids in small sections to the stomach.
- Stomach - A J-shaped, bag-like muscular organ that can hold approximately one liter of fluid and food.
- hydrochloric acid and pepsin - special cells that secrete gastric juices. that begin the chemical breakdown of proteins.
- 2-6 hours to 24 hours - Food remains in the stomach
- chyme - Partially digested food becomes liquified, which passes in small amounts into the duodenum.
- Small intestine - about 6 meters long, consist of three parts
- duodenum - the U-shaped
- Ileum - much-coiled
- Duodenum, jejunum, and ileum - three parts of small intestine
- Liver – largest gland in the body.
- Pancreas – soft triangular gland lying between stomach and small intestine.
- Gallbladder - releases bile through a duct into the small intestine to help in the breaking up of large fat particle into smaller ones so that it can be easily digested by the enzymes in the small intestine.
- large intestine - Where after Undigested food leaves iand passes?