Blood Flashcards
Blood
Connective tissue of plasma and cells
Plasma
Liquid part
90% water
What does plasma contain
Dissolved substances
What dissolved substances are in plasma
Minerals
Vitamins
Glucose
What shape are red blood cells
Biconcave shape
What do red blood cells not have
A nucleus mitochondria
Red blood cells contain
Haemoglobin
Where are red blood cells made
Bone marrows
What are red blood cells broken down by
Liver or spleen
White blood cells are … than red blood cells
Larger and less numerous
Function of white blood cells
Protect against disease
Large nucleus in white blood cells produce..
Antibodies
Platelets are
Fragments of cells
Function of platelets
Clotting
What determines blood groups in red blood cells
Type of antigen present
Name another blood grouping system
Rhesus system
3 functions blood
Transports food wastes hormones and gases
Temperature regulation
Defence against disease
What does the closed system endure
That blood pressure is high enough to reach all parts of the body
Open system
Blood bathed the cells
What is a portal system
A pathway that begins and ends in capillaries
What do portal veins not connect directly to
The heart
What does the hepatic portal vein connect
Ileum to liver
Function ofred blood cells
Transport oxygen
What feature allows blood cells to pass through the narrow capillaries
They are flexible
