Circulatory System Flashcards
What is the right of the heart responsible for
For reviewing and sending deoxygenated blood
What is left hand side of the heart responsible for
Sending and receiving oxygenated blood
Do the veins go towards or away from the heart
Go towards
What does the vena carva do
Brings deoxygenated blood back from the body
What does the pulmonary vein do
Bring oxygenated blood back from the lungs
What does pulmonary mean
Lungs
What does he aorta do
Send oxygenated blood to the body
Pulmonary artery does what
Send deoxygenated blood to the lungs
Do artery’s go towards or away from the heart
Away
What is the wind pipe called
Trachea
What does the trachea split into
Bronchi
What do bronchi divide into
Bronchioles
At the end of the bronchiole are?
Alveoli
What do the alveoli do
Carry out gas exchange
Lung adaptations
High number of alveoli
Constant movement of air in and out of the lungs
Constant movement of blood to and from the lungs
Capillaries that supply the blood to the lungs are only one cell thick
Why does the high no of alveoli help the lungs
Very high surface area
Why does the constant movement of air in and out of the lungs help
Maintains a very high concentration gradient
Why does the constant movement of blood to and from the lungs help
Maintains very high concentration gradient
Why does the capillaries being only one cell thick help
Reduces diffusion distance between the alveoli and the blood
What does the blood include
Plasma
White blood cells
Red blood cells
Platelets
What do platelets do
Help with blood clotting
What do red blood cells do
Help transport the oxygen around the body
What do white blood cells do
Fight of infection and pathogens
Plasma does what
Medium in which it all sits in also where substances are dissolved such as: digested food
Hormones
Carbon dioxide
