THE CIRULATORY SYSTEM
We already know that a group of organs working together to perform a particular
HEART
The main funcition of the blood heart is to pump blood containing oxygen and nutrient to all part of the body. The heart also also recive blood which contain carbondioxyted from all part of the body and pump it to the lung for purification
function is called an organ system. The circulatry system is an organ system
THE CIRCULATRY SYSTEM
The cirulatory system transport nutrient water and oxygen inside our body through blood
The circulatory system is mainly divide into three part
1 heart
2 blood and
3 blood vessel
The heart nis a muscular organlocated on the left side of the chest It is protected by the rib cage .It pinp s blood to all part opf the body.
STRUCCTURE AND FUNCITION OF THE HEART
The human heart consist of four chamber two upper chamber and two lower
chamber. The upper chamber are are called the artria of suricles and the lower chamber are callled the ventriocal. Auricles receive blood cioming from the rest of the body and ventrtical pump blood out of the heart
HEART BEAT
While pumping blood the heart makes a rhythmic movement called heart beat ]
We can feel the hert beat at differnt place of the body such as the wrist of the neck.
KEEPING YOUR HEATH HEATHY
It s importent to keep our heart heathy for puroper funcition of your body
1 Always eat a blsced diet
2 Do not eat junk of fried food
3 do not live in polluyted sarrounding
BLOOD
A blood substance that flow inside our body is called blood. Blood flows throught muscular tube called blood vessels. Blood is pumped by the differnt part of the different part of the body
FUNCTION OF THE BLOOD
1 Blood transport oxygen and carbondioxide throught the body.
2 The red blood cell (RBCs)carry the oxygen from the lung to all part of the body
3 Blood transport the nutrient from th4e digested food to all the cell in the body
4 Blood mainten the temperature or our body
5 The white blood cell (WBCs) protect our body from infection and disease causing organism.
BLOOD VESSELS
The thin kmuscular tube throught which blood flows thoughtout the body are calledblood vessels There are three type of the blood vessel - arteries , vins and capillaries
STRUCTURE AND FUNCITION OF THE BLOOD VESSEL ARTERIES
They are the largest of thee three blood vessels. Each artery is divide into small part called arterioles which form a network throughout the body . Aorta is the main artery coming out of the heart. It is the largest arteryt in our body
VEINS
Veins are thinner than arteries. They can carry more blood than arteries .They carry blood from diffent part of the body back to heart.
CAPILLARIES
They are the tinnest of the three blood cell. They connected the arteries to the veins
BLOOD CIRCULATION
The continuous movement of nutrient,oxygen,and carbondioxide between the heart and the other body part by blood is calles blood circulation.
