2.6 biology

Created by

Amber M

Cards (23)

Red blood cells 
Cells in the blood that carry oxygen. They have a biconcave shape, no nucleus and contain haemoglobin.
White blood cells 
Cells in the blood that make up the immune system by destroying pathogens.
Oxyhaemoglobin 
The substance produced when oxygen binds with haemoglobin in the lungs.
Haemoglobin 
The substance that carries oxygen in red blood cells.
Biconcave 
The shape of red blood cells to increase their surface area.
Pathogens 
Disease causing microbes.
Lymphocytes 
White blood cell that produces antibodies.
Phagocytes 
White blood cell that engulfs pathogens during phagocytosis.
Antibody 
Protein that is produced by lymphocytes to destroy pathogens.
Valves 
Prevent the backflow of blood. They are found in veins and there are four in the heart.
Vena cava 
Largest vein in the body. Brings deoxygenated blood back to the heart from the body.
Aorta 
Largest artery in the body. Brings oxygenated blood from the heart to the body.
Pulmonary artery 
Artery that takes deoxygenated blood from the heart to the lungs.
Pulmonary vein 
Vein that takes oxygenated blood from the lungs back to the heart.
Coronary arteries 
Blood vessels that supply the heart muscle with blood.
Arteries 
Blood vessels that carry blood away from the heart under high pressure. They have a narrow central channel and thick, muscular walls.
Veins 
Blood vessels that carry blood back to the heart under a low pressure. They have thinner walls, a wider channel and contain valves.
Capillaries 
Thin walled blood vessels that have a large surface area, forming networks at tissues and organs to allow efficient exchange of materials.
Ventricle 
Chamber that pumps blood out of the heart.
Atrium 
Chamber that receives blood from the veins.
In the lungs 
Oxygen + haemoglobin -> oxyhaemoglobin
In the body cells
Oxyhaemoglobin -> oxygen + haemoglobin
The left ventricle is thicker than the right ventricle as it has to pump blood all around the body.