28 May Nine Remarkable Spine Facts
Nine Remarkable Spine Facts
- Cartilage in your spine expands and contracts.
-You are taller in the morning than at night, because at night you have had gravity pushing down on you all day long.
-When astronauts return from space they are usually 1.5 or 2 inches taller than when they left.
- You have the same number of bones in your neck as a giraffe.
- Some people have spines that are extremely flexible. They can bend far enough back to make ⅔ of a circle.
- Babies have more spinal bones than adults.
-You started out with 33 vertebrae but ended up with just 26. What happened to the extra bones?
-Some of the vertebrae grew together to form the sacrum (back of the pelvis) and coccyx (tailbone).
- Even though the spine is often injured, it can be extremely resilient:
-It may require a force greater than 3,000 newtons to fracture the cervical spine.
-That’s equal to the impact created by a 500-pound car crashing into a wall at 30 miles per hour.
- Your spine contains over 100 joints, 220 ligaments, and more than 120 muscles.
- The bones of your spine keep growing until you reach your full height, but your spinal cord stops growing when you are five years old.
- The top bone of your spine holds up your head. It was named after Atlas, the Greek Titan who held up the world.
- Where do you have more nerve cells, your spinal cord or your gastrointestinal tract?
-Your digestive tract has 500 million neurons.
-That’s five times as many as the 100 million neurons in your spinal cord.