With Halloween right around the corner, I thought it might be fun to share some facts that you may or may not know about your skeletal system. And, while Chiropractic uses the bones as levers to influence your body, it is important to remember that our target is your nervous system, which has its own extensive set of fun facts itself, including running every function of your body.
Now on to some trivia about a system of structures that allow us to do some amazing things!
1. Your skeleton is made of more than 200 bones.
Inside your body are 206ish bones. There are little bones that form in tendons called sesamoid bones that vary in number from person to person. Each bone plays a very important role in making all the mechanics of your body function properly.
2. The body has two types of bone
You may think of bone as a hard, dense material, but only one type of bone is like this. This dense, hard bone is called cortical bone. Cortical bones are primarily the “structure” bones.
The second type, trabecular bone, is soft and spongy. It’s often found inside the ends of large bones and in your pelvis, ribs, vertebra, and skull. Though it’s less dense than cortical bone, it’s still quite strong and protective.
Amazingly, as strong and hard bones are they are actually quite flexible, allowing them to absorb the strain of impacts (like when walking or running), lifting heavy objects, or bending around each other (like in your forearm) to increase range of motion.
3. Bones are filled with a spongy tissue
Bone marrow is a spongy substance that’s found inside large bones like your hips, pelvis, and femur. Bone marrow houses stem cells. These stem cells are responsible for producing the cells found in your blood.
4. Babies are born with 300 bones
Adults will end up with only 206 bones, but babies are born with almost 100 more. It’s not that bones disappear as we grow older. Instead, these tiny bones fuse together to form the larger bones of the skeletal system.
5. The smallest bone in the body is in your ear
The stapes, a bone in your inner ear, is the smallest of all your bones. This bone is also sometimes called the stirrup because of its Y shape. Together with the incus (anvil) and malleus (hammer) bones, the bones of the ear help translate sounds waves you hear into signals your brain can understand.
6. The longest bone in the body is in your leg
The femur, which runs from your hip to your knee, is the longest and largest bone in your body. It’s also the strongest. Just think of all the forces that bone handles in a day. No wonder it’s so strong!
7. Bones are designed to take a beating
Yes, bones can break. But they’re designed to stand up to daily wear and tear. For example, some bones must be able to absorb two to three times your body weight in force. They must also be resilient. You take 1 to 3 million steps per year, so bones are built to take the constant use.
8. More than half your bones are in your hands and feet
You have 206 bones in total, and 106 of them are in your hands and feet.
9. One bone isn’t connected to any other bones
The hyoid bone, which is in your throat, is the only bone that doesn’t connect to a joint. The hyoid is responsible for holding your tongue and throat muscles in place. It is also used in confirming choking deaths because it breaks when a person is choked.
10. Most people have 12 ribs on each side, but some have 13
A 13th rib is rare — only 1 percent of people are born with it. In most people, this extra rib, called a cervical rib, can cause medical issues like neck pain.
11. The biggest joint in your body is your knee
At the knee joint, three bones connect: your femur, tibia, and patella. Those three large bones require an equally large joint to connect them. That’s why your knee is the largest joint in your body.
12. A skeletal system isn’t that common in the world
Humans are part of a group of creatures called vertebrates. That means our bones are covered by a system of tissue and skin. Only 10 percent of the world’s animals (humans included) are vertebrates.
The other 90 percent are invertebrates. Their bones are on the outside of their body or they don’t have any bones at all.
13. Bones are strong, but teeth are stronger
The enamel on your teeth, which are considered part of your skeletal system, is actually stronger than bones. Enamel protects the delicate nerves and tissue inside your teeth. Inch for inch, your teeth can take more wear and tear than any of your other bones.
14. Bones are natural healers
When you fracture a bone, your body will go to work producing new bone cells and helping heal the break. A cast or brace just ensures the bone heals straight so you don’t have more problems in the future.
In fact, bones are constantly being remodeled (absorbed and remade) based on the stresses you put on them, so if you want stronger bones you need to be sure to exercise.
15. You can eat your way to stronger bones
Bones can lose strength over time. Keeping them strong requires eating calcium-rich foods or taking a good quality calcium supplement. Exercise, especially weight-bearing exercise, helps keep
bones strong, too.
The skeletal system can support you for a lifetime of movement. Taking proper care of it ensures you can move longer, experience more, and have greater health. Knowing how to properly care for your bones can go a long way to a healthy, fulfilling life.