Blood Flashcards
What is blood?
Blood is a bodily fluid in humans and other animals that delivers necessary substances such nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.
What is plasma?
Liquid part of the blood
What is the function of plasma?(2)
- Transport blood components
- Maintains constant temperature
What is another name for red blood cells?
Erythrocytes
Where are Red blood cells formed?
Bone marrow
How does the structure of a red blood cell help it carry out its function?(3)
- Biconcave shape: larger surface area for carrying oxygen
- flexible it can fit through capillaries
- no nucleus: more room for haemoglobin
Why do red blood cells have haemoglobin?
Carries oxygen around your blood and gives it its red color
What do red blood cells do?
Transport oxygen and carbon dioxide
What is another name for white blood cells?
Leucocytes
Where are white blood cells produced?(3)
Red marrow, spleen and lymph glands
What is the structure of a white blood cell?(2)
- larger than red blood cells
- have nuclei
White blood cells are ______ in number compared to red blood cells.
Fewer
What is function of the white blood cells?
Protect the body against infection and disease.
What is the structure of platelet cells?(2)
- Small irregular shaped discs
- No nuclei
How do platelets form?
Result from break-up of bigger cells
