Digestive System 1
The process of breaking down food
What is digestion?
Type of blood cell that carries oxygen.
Blood vessels that carry blood away from the heart.
What are arteries?
Main organs of the respiratory system.
What are the lungs?
Process of breaking down food.
What is digestion?
Where digestion begins
What is the mouth?
Type of blood cell that fights infection and disease.
What is a white blood cell?
Blood vessels that return blood to the heart.
What are veins?
Another name for the windpipe.
What is the trachea?
Where food ends up after traveling down the esophagus. Secretes acid and pepsin to digest proteins and churns/mixes up food.
What is the stomach?
Tube that connects the mouth to the stomach
What is the esophagus?
Fragments of blood cells that aid in blood clotting.
What are platelets?
The bottom chambers of the heart; their function is to pump blood.
What are ventricles?
Large muscle under the lungs that contracts and relaxes during inhalation and exhalation.
What is the diaphragm?
Main site of nutrient absorption; contains bumps called villi.
What is the small intestine?
Where water is absorbed from waste. Also contains bacteria that help produce Vitamins K and B
What is the large intestine?
Very thin blood vessels where gases and nutrients are exchanged between the blood and the nearby cells.
What are capillaries?
Place where blood cells are produced.
What is bone marrow?
Each lung contains millions of these inflatable sacs where gas exchange takes place.
What are alveoli?
Some functions of this organ include making bile, detoxifying poisons such as alcohol, and storing blood sugar as glycogen.
What is the liver?
Organ located behind the stomach that produces enzymes and regulates blood sugar.
What is the pancreas?
Large arteries that carry deoxygenated blood away from the heart to the lungs.
What are pulmonary arteries?
Large artery that carries oxygenated blood away from the heart to be distributed throughout the body.
What is the aorta?
Process by which oxygen moves from the air in the alveoli to the blood in the surrounding capillaries.
What is diffusion?
Involuntary waves of smooth muscle contraction that push food and waste through the digestive tract.
What is peristalsis?