-A man has over 10000 million neurons in his brain. This is more than the number of stars in the Andromeda galaxy.
-The human brain can store 100 trillion bits of information compared to one trillion of a computer.
-When a pin pricks our skin the nerves transmit the message to the central neuraxis and back to the effected part at the speed of more than 3 x 106mph.
-In a year, a person heart beats 40000000 times.
-If all the blood vessels in the human body were laid end to end, they would stretch more than 15000 kms.
-The red blood cells are produced at the rate of 3 million per second by the bone marrow.
-A men's sense of smell is at least 2000 times more sensitive than his sense of taste. His tongue can detect only five basic tastes while his nose can distinguish more than100000 different smells.
-The liver, body's second largest organ has been estimated to have about 500 functions. 80% of the liver can be respected without altering its function.
Compiled by Sunita Subedi
B.Sc. Third Year Physics
1 comment:
Nerve impulses do NOT travel at 3 million mph !!! More like between 0.1 to 100 meters/second (the latter being around 240 mph) !!
Makes me wonder about validity of the remainder of these interesting "facts"...
Matt, Ph.D. Physiologist
Post a Comment