Humans transport Flashcards
What does blood do?
blood allows substances to be transported from one place to another
What 4 components make up blood?
Red blood cells
White blood cells
Platelets
Plasma
Where is oxygen carried from and to
From the lungs
To all the cells of the body
Where is carbon dioxide carried from and to
From all the cells of the body to the lungs
Where is urea carried from and to
From the liver
To the kidneys
Where is glucose carried from and to
From the small intestine
To all the cells of the body
What do white blood cells do?
White blood cells are part of the body’s immune system
What do platelets do?
They form clots when a blood vessel is damaged
What do red blood cells do?
They are involved in the transport of oxygen and carbon dioxide
What is plasma and what does it do?
Plasma is the pale yellow liquid part of blood and if carries water, urea and glucose etc.
Why are red blood cells special?
They have no nucleus to contain its maximum mass of heamoglobin to pick up more oxygen.
It has a biconcave shape to increase surface area allowing diffusion to take place quickly
Name the three main types of blood vessels
Arteries
Veins
Capillaries
Where do arteries carry the blood?
Arteries carry the blood away from the heart
Where do veins carry the blood?
Veins return the blood to the heart
Describe the artery structure
It has thick, muscular walls to withstand high pressure and a relatively narrow central channel
