think of any machine. Think, how does it work? We see many gadgets and machine
around us such as washing machine, car, oven, cycle, television, mobile and
many more. All these machines are made up of many parts and each has its own
function to perform. Similarly our body
functions with help of many parts. Some parts are external which is outside our
body such as hands, legs etc. and some are internal parts which inside of the
body such as liver, stomach, brain etc.
body part is very important and has special task to do. Some of the internal
organs are brain, liver, stomach, heart, lungs, kidneys, small intestine and
brain is very delicate and is protected by skull from outside. Brain controls
the entire function of our body. Brain receives signals from our sense organs
and sends information to other part of the body. It store information and helps
to think and learn new things. It control functions such as breathing,
digestion, muscles control, emotions, heartbeat etc.
is internal organ where most of the digestion takes place. It is a muscular,
elastic, pear shaped bag under the ribs. From upper end, it connects to food
pipe (esophagus) and lower part leads into the small intestine. Stomach
secretes gastric juices which help in the digestion of food.
Heart is an important organ of our
body. It works day and night. We can feel our heart beats on placing our hand
on the left side of our chest. Our heart beats about 72 times in a minute. Its
job is to circulate blood throughout our body through blood vessels (arteries
Heart is a red brown colored muscular
organ. It receives de oxygenated blood (impure blood) from different parts of
body through veins and pump oxygenated blood (pure blood) to the body through
arteries. Arteries appear red in color and carries pure blood that contains
nutrients from digested food and oxygen. Veins appear blue in color and carries
waste material and carbon dioxide.
Heart is located in slanting position
in the center of chest. The heart has four chambers right atrium, left atrium,
right ventricle, and left ventricle.
Liver lies on the right side of the
stomach. It is the largest gland in the body. It secretes and sends bile juice to
stomach which helps in digestion. Liver breaks down fats, filters toxins
(harmful substances) and controls blood sugar.
The air we inhale travel through
trachea (windpipe) goes to lungs. Lungs are pair of spongy, cone shaped
structures located in chest and are protected by rib cage.
The tiny hairs present in the nose filters
particulate matter from the air. Oxygen from air inhaled is absorbed in blood
stream and carbon dioxide from the blood stream is expelled and finally we
breathe out carbon dioxide through our nose. This process is
called gas exchange and takes place in the lungs. Then veins carry oxygen rich
blood to the heart and heart pumps to the other parts of the body.
While breathing in air (called
inhalation), our lungs expands and while breathing out air (called exhalation),
Kidneys are two bean shaped organs in
our body. The kidneys are located at both sides of our backbone just under the
rib cage .People are born with two kidneys but we can live healthy life even with
Entire blood in the body passes through
kidney many times a day. Kidneys filter water and salts from our blood. The
waste get collected in the urinary bladder and thrown out of body as urine.
The small intestine is a long tube. It
is 20 feet long and about an inch in diameter. Most of the nutrients are
absorbed into our blood stream in small intestine from food we eat and drink. Then
food moves from our small intestine to our large intestine.
The large intestine is about 5 feet
long and about 3 inches in diameter. The large intestine absorbs water from
wastes, creates stool. And then stool enters the rectum and thrown out of the