B4 Flashcards
(37 cards)
Blood Plasma
Your blood plasma is a yellow liquid. The plasma transports all of your blood cells and some other substances around your body.
Red Blood Cells
There are more red blood cells than any other type of blood all in your body - about 5 million in each cubic millimetre of blood. These cells pick up oxygen from the air in your lung and carry it to the cells where it is needed.
White blood cells
White blood cells are bigger than red blood cells and there are fewer of them. They have a nucleus and form part of the body’s defence system against harmful microorganisms.
Function of Arteries
They carry blood away from the heart to your muscles.
Structure of Arteries
They have thick walls containing muscle and elastic fibres.
Function of Veins
They carry blood away from the muscles back the heart to be re-oxygenated.
Structure of Veins
They have much thinner walls than arteries and often have valves to prevent the back flow of blood.
Function of Capillaries
They are ha huge network of tiny vessels linking the arteries and veins, throughout the body. This enables glucose and oxygen to diffuse out of the blood and into the cells.
Structure of Capillaries
They are very narrow with thin walls.
Pulmonary Artery
Takes deoxygenated blood to the lungs
Vena cava
It carries blood from the deoxygenated body to the heart.
Aorta
Carries oxygenated blood to the body.
Pulmonary vein
Brings oxygenated blood from the lungs to the heart.
Left Atrium and ventricle
The cavities in your heart that stores oxygenated blood, while awaiting for the heart to spasm, this is so then the blood can be pumped around the body via the Aorta.
Right Ventricle and Atrium
The cavities in your heart that stores deoxygenated blood, while awaiting for the heart to spasm, this is so then the blood can be pumped to the lungs via the Pulmonary Artery, to be re-oxygenated.
Stents
These are little metal mesh which is fed from your growing to your canonry heart, which is floppy, or collapsed. They then inflate a balloon to lock the mesh. This gives structure to your artery which may otherwise stop the blood flow to your heart.
Statins
Statins are tablets which are prescribed by doctors to anyone who has a high risk of high colestial and slows down the rate at which fatty material is diposotied in the Comanary artery. They are cheep for the NHS and us, but people could over dose.
Leaky valves
Valves may become flimsy or stiff due to the high blood pressure at which the human heart and blood system has to work under. Many people have leaky valves but with it not treated it may cause breathing issues, and eventually death.
Artificial pacemaker
A pacemaker is a group of cells found in the right atrium which control the beating ay your heart. This is important because if the heart beats too slowly, the body will be starved of oxygen, where as if the heart beats too fast the body cannot pump blood around. If the pacemakers stop working, they can be replaced by an artificial pacemaker this is an electrical device which sends the heart into spasm causing the heart to pump blood. High costs.
Artificial Heart
A patient can have an artificial heart if they are waiting for a heart transplant. However, they have to be changed after a few years and there is a high risk of blood clots.
Nose and Mouth
Inhales oxygen and respire Carbon dioxide
Trachea
A pipe to transport oxygen to the lungs and carbon dioxide back to the mouth or nose to be exhaled out the body.
Bronchi
Splits inhaled air equally into both lungs
Ribs
Protects the lungs from any injury