This organ is where most nutrient absorption occurs.
Small Intestine
These grape-like sacs are where oxygen and carbon dioxide are exchanged.
Alveoli
These blood vessels carry blood away from the heart.
Arteries
This side of the heart receives blood from the body and transports it to the lungs.
Right
These two systems work together to deliver oxygen to the body's cells.
Mouth and Stomach
These tiny hair-like structures line the trachea to trap and move debris upwards.
Cilia
These vessels are one cell thick to facilitate gas exchange.
Capillaries
This chamber of the heart pumps oxygenated blood to the body.
Left Ventricle
Circulatory
This accessory organ produces bile that is used to digest lipids in the small intestine.
Liver
This structure splits the respiratory system into two.
Bronchi
Plasma
Our body undergoes these two types of circulation.
Systemic and Pulmonary
This structure spans part of both the digestive and respiratory system.
Amylase and Lipase
This structure is also known as the voice box.
Larynx
This iron-containing protein found in red blood cells allows blood to become oxygenated.
Hemoglobin
Left and Right Pulmonary Arteries.
This structure blocks the pathways between the respiratory and digestive system.
Epiglottis
This circular muscle controls the movement of food from the stomach to the small intestine.
Pyloric Sphincter
Inspiratory Reserve Volume (IRV)
Red Blood Cells have this specific shape, making them more flexible to travel through vessels.
Biconcave
This valve separates the right atrium and right ventricle.
Atrioventricular (AV) tricuspid valve
This is the teacher's favourite system.
Digestive