Circulatory System Flashcards
Right ventricle function
Pumps blood to lungs
Left ventricle function
Pumps blood to rest of body
Pulmonary artery
Takes blood low in oxygen from right ventricle to the lungs
Pulmonary vein
Takes oxygen-rich blood from the lungs to the left atrium
Aorta
Takes oxygen-rich blood from the left ventricle to the body
Pulse
Wave of pressure
Heart disease
Caused by small arteries that supply blood to the heart becomming clogged with fat
Plasma function
Transport chemicals and heat
Plasma carries what around the body
Red amd white blood cells, platelets, heat
Haemoglobin
Needs iron to make
Carries oxygen
Function of white blood cells
Fight infection
Platelets function
Clots blood
Funcion: red blood cells
Transport oxygen
3 main types of blood vessels
Arteries, veins, capillaries
Arteries function
Carry blood away from the heart
Capillaries definition
Allows material to pass in and out of blood
Veins
Carries blood to the heart
What is the heart made of
Cardiac muscle
What is blood composed of
Plasma, red blood cells, white blood cells, platelets
Average heartbeat
79 bpm
Heart valves
Make sure that Blood can only flow in one direction
Septum
Muscular wall separates two sides of the heart
Left ventricle
Pumps blood from heart all around the body, very thick
Right ventricle
Pumps blood from heart to lungs, short distance so muscular walls are thin
Heart function
Pumps blood around the body
Right ventricle:
Oxygen content
Carbon dioxide
Low
High
Left ventricle:
Oxygen content
Carbon dioxide
High
Low
3 Ways to avoid heart disease
Exercise
Not smoking
Healthy diet
Vena cava
Takes blood low in oxygen from the body to the right atrium
