Amazing Human Body

General Knowledge

• The largest organ in the body is the skin.
• The liver is the largest gland and the largest internal organ in the human body.
• The brain uses over a quarter of the oxygen used by the human body.
• Our heart beats around 100000 times a day, 36500000 times a year and over a billion times if you live beyond 30.
• Length of thumb is the same with nose.
• Red blood cells carry oxygen around the body. They are created inside the bone marrow.
• It takes about 20 seconds for a red blood cell to circle the whole body.
• The biggest muscle in the body is gluteus maximus, in the buttock.
• The lungs contain over 300,000 million capillaries. If they were laid end to end, they would stretch 2400km.
• Every drop of blood in human body is filtered by the body over 300 times a day.
• The ovum is the largest cell in the human body.
• The smallest is the male sperm cell; it is one-tenth of the diameter of a human hair.
• Adult lungs have a surface area of around 70 square meters.
• The stapes is the smallest bone in the body. It's located in the inner ear.
• The acid in stomach is strong enough to dissolve razor blades.
• Nose and Ears continue growing throughout entire life.
• Each person has a unique tongue print just like the fingerprints.
• The longest muscle in the body is Sartorius.
• The smallest muscle in the body is Stapedius, deep in the ear. It is thinner than a thread and 0.05 inches (0.127 centimeters) in length.
• Enamel is hardest substance in the human body.
• All babies are color blind when they are born, they only see black & white.
• The tongue is the strongest muscle in the human body.
• It takes 17 muscles to smile and 43 to frown.
• The adult body is made up of: 100 trillion cells, 206 bones, 600 muscles, and 22 internal organs.
• Bones in an adult account for 14% of the body's total weight.
• A baby born with 300 bones in their body, but as an adult we have 206 bones.
• 200 muscles used to take one step.
• The strongest bone in your body is the femur (thighbone) and it's hollow. It is also the longest and largest bone in Human body.
• The normal pulse is 70 heartbeats per minute.
• Blood is 6 times thicker than water.
• Facial hair grows faster than any other hair on the body.
• Our kidneys filter about 1.3 liters of blood every minute & expel up to 1.4 liters of urine in a day.
• The only part of the body without blood supply is the cornea in the eye. It takes in oxygen directly from the air.
• An average human produces 10,000 gallons of saliva in a lifetime.
• The fastest growing nail is on the middle finger.
• 14 bones make up the human face.
• The human heart creates enough pressure while pumping to squirt blood to 30 feet.
• The tooth is the only part of the human body that can’t repair itself.