PPT: The Human Body | General Awareness for SSC CGL PDF Download

 Page 1


The Human Body
Page 2


The Human Body
Parts of the Circulatory System
The Heart
The central pumping organ 
that moves blood 
throughout the body, 
beating continuously 
throughout life.
Blood Vessels
The network of arteries, 
veins, and capillaries that 
transport blood to and from 
all parts of the body.
Blood
The fluid that carries oxygen, nutrients, hormones, and waste 
products throughout the body.
The circulatory system carries food and oxygen to all parts of your 
body. It also carries waste substances that your body does not need.
Page 3


The Human Body
Parts of the Circulatory System
The Heart
The central pumping organ 
that moves blood 
throughout the body, 
beating continuously 
throughout life.
Blood Vessels
The network of arteries, 
veins, and capillaries that 
transport blood to and from 
all parts of the body.
Blood
The fluid that carries oxygen, nutrients, hormones, and waste 
products throughout the body.
The circulatory system carries food and oxygen to all parts of your 
body. It also carries waste substances that your body does not need.
The Heart
Can you guess what 
makes blood flow in our 
body?
Size and Location
About the size of your 
fist, located inside 
your chest slightly to 
the left, protected by 
the ribs.
Function
A special muscle that 
pumps blood through 
your body in a process 
called circulation.
Efficiency
Takes less than a 
minute to pump blood 
to every part of your 
body, working 
continuously without 
stopping.
Page 4


The Human Body
Parts of the Circulatory System
The Heart
The central pumping organ 
that moves blood 
throughout the body, 
beating continuously 
throughout life.
Blood Vessels
The network of arteries, 
veins, and capillaries that 
transport blood to and from 
all parts of the body.
Blood
The fluid that carries oxygen, nutrients, hormones, and waste 
products throughout the body.
The circulatory system carries food and oxygen to all parts of your 
body. It also carries waste substances that your body does not need.
The Heart
Can you guess what 
makes blood flow in our 
body?
Size and Location
About the size of your 
fist, located inside 
your chest slightly to 
the left, protected by 
the ribs.
Function
A special muscle that 
pumps blood through 
your body in a process 
called circulation.
Efficiency
Takes less than a 
minute to pump blood 
to every part of your 
body, working 
continuously without 
stopping.
The Heart
Left Side
The left side of the heart pumps blood that 
contains oxygen all around the body. This 
oxygen-rich blood provides energy to all cells 
and tissues.
The left ventricle has thicker walls because it 
needs to generate enough pressure to push 
blood throughout the entire body.
Right Side
The right side pumps blood without oxygen to 
the lungs only. This allows the blood to pick 
up fresh oxygen and release carbon dioxide.
The right ventricle has thinner walls as it only 
needs to pump blood the short distance to 
the lungs.
Page 5


The Human Body
Parts of the Circulatory System
The Heart
The central pumping organ 
that moves blood 
throughout the body, 
beating continuously 
throughout life.
Blood Vessels
The network of arteries, 
veins, and capillaries that 
transport blood to and from 
all parts of the body.
Blood
The fluid that carries oxygen, nutrients, hormones, and waste 
products throughout the body.
The circulatory system carries food and oxygen to all parts of your 
body. It also carries waste substances that your body does not need.
The Heart
Can you guess what 
makes blood flow in our 
body?
Size and Location
About the size of your 
fist, located inside 
your chest slightly to 
the left, protected by 
the ribs.
Function
A special muscle that 
pumps blood through 
your body in a process 
called circulation.
Efficiency
Takes less than a 
minute to pump blood 
to every part of your 
body, working 
continuously without 
stopping.
The Heart
Left Side
The left side of the heart pumps blood that 
contains oxygen all around the body. This 
oxygen-rich blood provides energy to all cells 
and tissues.
The left ventricle has thicker walls because it 
needs to generate enough pressure to push 
blood throughout the entire body.
Right Side
The right side pumps blood without oxygen to 
the lungs only. This allows the blood to pick 
up fresh oxygen and release carbon dioxide.
The right ventricle has thinner walls as it only 
needs to pump blood the short distance to 
the lungs.
Blood Vessels and Blood
B l o o d : A red liquid that flows around the body, carrying food particles and 
oxygen to all parts whilst removing waste products like carbon dioxide. There 
are three types of blood vessels.
Arteries
Carry blood away from the heart to the body's tissues and organs. Most 
arteries carry oxygen-rich blood.
Veins
Return blood to the heart from the body's tissues. Most veins carry 
deoxygenated blood except those from the lungs.
Capillaries
Tiny vessels connecting arteries and veins where exchange of nutrients 
and waste occurs.