Interesting Medical Facts

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Interesting Medical Facts


Here are some interesting medical facts which are not known to many. These interesting medical facts will blow your mind for sure.

  • There is about 1 kg of calcium in 206 bones.
  • Compact (cortical) bone specimens have been found to have tensile strength in the range of 700 – 1,400 kg per square cm (10,000 – 20,000 pounds per square inch) and compressive strengths in the range of 1,400 – 2,100 kg per square cm (20,000 – 30,000 pounds per square inch). These values are of the same general order as for aluminum or mild steel, but bone has an advantage over such materials in that it is considerably lighter.
  • Femur is the strongest bone of the body; yet it is hollow and comprised of 75% water.
  • Femur is the longest bone of the body making 1/4th of the total body length while Stirrup (an ear bone) is the shortest bone making it about 1/10th of an inch.
  • Teeth are even stronger than femur but they are not considered bones.
  • Hyoid (a bone in the neck region) responsible for making complex vocal sounds is the only bone without joints.
  • Bone is comparable to steel in strength but amazingly it is more elastic than steel.
  • Bone protects a very crucial blood forming structure called Bone Marrow which makes about 2 million blood cells in a second.
  • Humans and Giraffes have same number of bones in their necks.
  • Over a period of 7 Years our bone is replaced by a completely new bone by a process called bone resorption.
  • 60 bones are present in both arms and 60 bones are present in both feet out of total 206 bones.
  • The only bone that is fully grown in the body at the time of the birth is the ear bone.
  • Have you ever heard of disease called Disease of bone disappearance. Yes the bone totally disappears in Gorhams Disease and all that is left in the X-ray after the fracture of the bone is a void space because the bone is totally resorped.
  • A block of bone can carry about 9 tons of weight. A cubic inch of a bone can bear about 19,000 lbs of weight.
  • Foot bones are the most fragile bones.
  • If a rib is removed it can regenerate itself in 3 months.
  • There are 230 joints in a human body discovered till date.
  • Humans, birds, and bats have the exact same types of bones in their forearm.

  • The most suitable space for cancerous cells to metastasize is bones.
  • A panda is the only animal who has a bone in its penis.
  • Finger nails grows 4 times faster than toe nails.
  • A small piece of tibia, a leg bone, can carry the weight of a car.
  • A screw attached to a single cortex of the femur can carry a weight of 3 adults.
  • Human saliva has a painkiller 6 times more powerful than morphine.  It is called opiorphin, a natural painkiller.
  • There is enough DNA in an average person’s body to stretch from the Sun to Pluto and back — 17 times.
  • The average human body carries ten times more bacterial cells than human cells.
  • Bacteria produce chemicals that help us harness energy and nutrients from our food. Germ-free rodents have to consume nearly a third more calories than normal rodents to maintain their body weight.
  • The average person walks the equivalent of five times around the world in a lifetime.
  • An individual blood cell takes about 60 seconds to make a complete circuit of the body.

These are some of the interesting medical facts from a Quora thread. If you would like to share some interesting medical facts, do share in the comments section below.

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