Chapter 5-- The Ciculatory System Flashcards
What was the name of the person who first described how the way blood was flown around the human body
William Harvey(1578-1657)
Name 5 functions of blood
To transport oxygen to the cells
To transport food to the cells
To transport waste materials away from the cells
To help fight infection
To help keep the body at the correct temperature
Define tissue
A tissue is a group of cells with a similar structure and function
What is blood made up of
A straw colored liquid named plasma
Name 3 types of blood cells
Red blood cells
White blood cells
Platelets
What is the function of the red blood cell
Carry oxygen to the body cell
Function of the white blood cell
Fight infection
Function of platelets
Clot blood when blood vessels are damaged
What is plasma made out of
Mostly water and proteins
What makes a red blood cell red
Red blood cells have a red pigment called haemoglobin
Name the three types of blood vessels
Arteries veins and capillaries
Describe an arterie
Arteries have thicker walls that are very strong, they also have a smaller lumen than veins. They are usually deeper in the body than veins.
Describe a vein
Veins have thinner walls and are easier than arteries to damage but have thicker lumen
Describe the capillary
Capillaries are only 1 cell thick
What are valves in the heart for
To prevent backflow