The smallest bone in human body is stapes or stirrup bone. It is one of the three auditory ossicles in the middle ear. Its length is 0.10 to 0.13 inch.
Your tongue is the only muscle in your body that is attached at only one end
You use 14 muscles to smile and 43 to frown.
A living bone has layers of hard calcium, phosphate on the outside and a honeycomb of hard bone are living cells within.
Every second, hundreds of tiny pulses of electricity shoot through your body along living wires called nerves.
There is a place in the retina where the light sensitive cells are interrupted by the presence of the optic nerve head. It is known as The Retinal Neural Transmission Layer.
The cavity of Ascaris is known as Coelom.
The membranous labyrinth of the ear is filled with Endolymph.
Crura-cerebri is found in Mid-brain.
The strongest muscle of the body is the masseter muscle, which is located in the jaw. (Check)
Muscles account for 40 percent of one's body weight.
There are 230 joints in the body.
Kids have 20 first teeth. Adults have 32 teeth.
The small intestines are about 25 feet long.
The large intestines are five feet long and are three times wider than the small intestines.
Most people shed 40 pounds of skin in a lifetime.
Your body is 70 percent water.
Normal body temperature is 98.6° Fahrenheit.
When you sneeze, air rushes through your nose at a rate of 100 mph.
An eyelash lives about 150 days before it falls out.
Your brain sends messages at the rate of 240 mph.
About 400 gallons of blood flow through your kidneys in one day.
You blink your eyes about 20,000 times a day.
Your heart beats about 100,000 times a day.
Humans breathe 20 times per minute, more than 10 million times per year and about 700 million times in a lifetime.
You have about 100,000 hairs on your head.
There are 10 million nerve cells in your brain.
Each of your eyes has 120 million rods, which help you see in black and white.
Each eye has six million cones, which help you see in color.
One in 12 man is colorblind.
Brain of a normal human adult weighs about 3lb
For an adult blood pressure of 120/80 is regarded as ideal and pressure of up to 140/90 is normal.
Iris in the eye contracts on the entry of light.
Retina acts as a lens in the entry of light.
In your body where is the macula- Eye centre of the Retina
Weight of heart is 300 gram.
Heart pumps five liters of blood in 1 minute.
Colon is mainly responsible for water absorption from the undigested residue.
