Bollywood Movies Releasing in Oct-Nov-Dec 2017

Unknown Facts about Human body.

The human body of man is made up of many tissues and organs. They number in millions. The cell are organised uniquely and function dynamically together. Their complexities can be understood better when it is closed scanned. Here are some bits of information that are quite interesting.

• The Stomach takes 20 minutes to tell the brain that it is full and that one should stop eating.
• The thickness of skin varies from 1/2 to 6 mm, depending on area of body.
• The four taste zones on your tongue are bitter ( back), sour ( back sides) salty( front side) and sweet (front).
• One uses 14 muscles to smile and 43 to frown.
• It takes the interaction of 72 different muscles to produce human speech.
• The strongest muscle of the body is the masseter muscle,which is located in the jaw.
• The small intestine is about 750 cm long.
• The large intestine is 150 cm long and 3 times wider than the small intestine.
• Most people shed 20 kg on skin in a lifetime.
• When you sneeze, air rushes through your nose at the rate of 156 kmph.
• About 5-6 litres of blood is filtered by 2 million nephrons 37 times a day.
• Each of our eyes has 6M cones, which help us see in colour.
• Our heart beats about 1,00,000 times/day.
• The average human brain has about 100 billion nerve cells.
• The thyroid cartilage is more commonly known as the Adam's apple.
• It's impossible to sneeze with open eyes.
• When you sneeze, all your body function stop even your heart.
• Babies are born without knee cap. They don't appear till they are 2-6 years of age.
• Children grow faster in spring season.
• Women blink twice as much as men.
• If one is blind in one eye, he only loses about 1/5 of vision and the sense of depth.
• Our eyes are the same size from birth, but our nose and ears never stop growing.
• Hair is made of the same substance as fingernails.
• A finger nails takes about 6 months to grow from base to tip.
• The energy used by brain is enough to light a 25 watt bulb.
• The heart produces enough pressure to squirt blood 900 cm.
• We get a new stomach lining every 3-4 days. IF we didn't , the strong acids our stomach uses to digest food would also digest our stomach.
• Each square inch of human skin consists of 600 Cm of blood vessels.
• The Liver is the only major organ in the human body that can regenerate itself if part of it is removed.

Central Nervous System:

Central Nervous System:

The Brain along with spinal cord constitutes the nervous system .

The brain consist of

1.Cerebrum : The largest part of the brain consisting of two hemispheres which controls voluntary actions and are the seats of intelligence, memory, imagination and will.

2.Cerebellum : The large mass having ridges and furrows attached to cerebrum, which regulates muscular movement of locomotion.

3.Medula Oblongata : The lowermost part of the brain which continues as  the spiral cord in vertebral column. It control involuntary action.

Glands of Human body

Glands of Human body :

Organs of the human body which manufactures aome liquid products which are secreted from the cell are called glands.

Ducted Glands : also know s Exocrine glands secrete their product through well defined ducts e.g  Liver- Production of bile, Lachrymal- secretes tears in the eyes;Salivary – Secretes saliva in the mouth;Sweat gland secrete sweat.

Ductless Glands : Also know as Endocrine glands or internally secreting glands. They secrete hormones directly in the blood stream in response to instructions from the brain

Main Organs of Human Body

Main Organs:

Heart: The heart is situated in the centre of the thorax ,just behind the breast the breast bone-sternum and is enclosed in a tough membrane called the pericardium. Its average weight is about 340 grams in men and 225 grams in women. Contraction and relaxation mechanism of ventricles results  a heart beat of 70-72/min in males and 78-82/ min in females. Contraction of ventricles is called systole and relaxation is called diastole. Circulation of blood in the body is regulated by heart.

Lungs :  A pair of spongy organs consisting of elastic tissues situated in the chest cavity. There are two lungs, the right lung is larger than the left lung. Together they weight upto 1.18 and 1.19 kg in a health adult. Their main function is to purify blood and supply Oxygen to it. The entire blood supply (4.5 to 5 litres) washes through the lungs about once a minute.

Liver : The Liver situated on the right side of the stomach is the largest gland in the human body. It weights around  8812 grams. The gall bladder is attached to the liver and stores bile produced by it. The liver is responsible for the metabolism of the products of digestion, storage and release of substances (principally glucose) so as to maintain constant level in the blood.

Kidneys: The two kidneys are situated in the upper posterior of the abdominal cavity, one on each side of vertebral column. Each kidney is approximately 10 cm long, 5 cm wide and 2.5 cm thick. They filter nitrogenous waste of the body from the blood and throw it out in the form of urine.

Human Brain : Consist of two parts : The brain located in the skull and the spinal cord located in the vertebral column.

The weight of average human brain triples between birth and adulthood. The final weight of a brain in an adult male is about 1.4 kg and 1.3 kg in case of woman) which averages about 3 % of body weight.

The Human brain uses about 20 % of the oxygen a man breathes, 20 % of calories a man takes in and 15 % of body blood.

Musclar System in Human Body

Musclar System :

Muscles are tissues attached to bones and composed of fibres. They are capable of contracting and relaxing to effect body movements.

Total Number of Muscles : There about 630 important muscles in human body, which normally account for 40 per cent of the body weight.

Largest Muscle : The bulkiest muscle in the body is gluteus maximus or the buttock muscle.

Longest Muscle : Sartorius is the longest muscle in the body which originates in the upper part of the hip bone and is attached to tibia bone of the leg.

Smallest Muscle : Stapedius muscle in the middle ear.

The Sketetal System: - Human Bones

The Skeletal System:

There are around 206 bones in the skeletal system of an adult. Bones of hands and feets only constitute 50 % of the total bones in the human body.

A new born baby has 300 bones, out of which 94 bones fuse together as it grows.

The Largest bones in the human body is the femur in the thigh. The average length of this bone is 50 cm.

The shortest bone in Human body is the Stirrup bone in middle ear.

Composition of Bones	Percentage
Organic Matter	33.30%
Phosphate of Lime	51.04%
Carbonate of Lime	11.30%
Flouride of Calcium	2.00%
Phosphate of Magnesia	1.16%
Soda/Chloride of Sodium	1.00%