The Circulatory System Flashcards
The circulatory system
Is a set of organs which form the internal transport system of the body
The circulatory systems main functions are
To transport food nutrients oxygen waste substances hormones and heat
To transport oxygen from the lungs to the tissue cells for respiration
To transport waste products like urea and carbon dioxide to excretory organs to be excreted
To transport hormones to targeted organs
Fighting against diseases and preventing loss of blood through the blood clotting when wounded
The circulatory system consist of
Heart arteries veins capillaries
What is double circulatory and what does it mean
Blood passes through the heart twice to complete one circulation
Double circulation consists of
Pulmonary circulation and systematic circulation
What does the right side of the system deals with
Deals with deoxygenated blood
The left side of the system deals with
It deals with oxygenated blood
Pulmonary circulation
Is the system which pumps deoxygenated blood from the heart to the lungs which contains the pulmonary artery and pulmonary veins
The systematic circulation is
Is the system which pumps oxygenated blood from the heart to the rest of the body part and brings back deoxygenated blood to the heart consists of the arota and vena cava
Aorta
An artery that carries oxygenated blood from the heart to the rest of the body
Pulmonary artery
An artery that carries deoxygenated blood from the heart to the lungs
Pulmonary vein
A vein that carries oxygenated blood from the lungs into the heart
Vena cava
A vein that carries deoxygenated blood from the rest of the body into the heart
Left atrium
Receives oxygenated blood from the lungs via the pulmonary vein
Left ventricle
It pumps oxygenated blood out of the heart to the rest of the body
Right ventricle
It pumps deoxygenated blood out of the heart to the lungs to get oxygen
Right atrium
Received deoxygenated blood from the rest of the body via vena cava
Coronary arteries
They provide the heart muscle with blood food and oxygen
Coronary veins
Delivers deoxygenated blood from the cardiac muscle to the right atrium
Valves
They prevent the Back backflow of blood so that the blood can only flow in One direction
Septum
Separate the two sides of the heart to prevent oxygenated blood and deoxygenated blood from mixing
Types of blood vessels
Arteries veins capillaries
What results are heart attack and cardiac muscle not to respire
When the coronary arteries get blocked due to the buildup of fatty deposits cardiac muscles failed to receive nutrients and oxygen this results in a heart attack because the cardiac muscle will not respire
Causes of a heart attack
Eating a high cholesterol diet being overweight
stress
smoking
not exercising regularly
a genetic presdisposition