Your skeletal system is to your body what wood and bricks are to a house. With a strong foundation, your body is designed to do a multitude of amazing tasks, from running to giving birth.
Learn about the skeletal system and some unique trivia you might never have known about the bones, cartilage, and ligaments that make up your skeletal system.
Inside your body are
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 large bones and in your pelvis, ribs, and skull. Though it’s less dense than cortical bone, it’s still quite hard and protective.
Bone marrow is a spongy substance that’s found inside large bones like your hips, pelvis, and femur. Bone marrow houses stem cells. Stem cells are responsible for producing many of your body’s most important cells, including blood, brain, heart, and bone cells.
Adults will end up with only 206 bones, but babies are born with
The stapes, a bone in your inner ear, is the
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 weight that bone handles in a day. No wonder it’s so strong!
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
You have 206 bones in total, and
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 in place.
A 13th rib is rare — only
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.
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.
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.
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.
Bones lose strength over time. Keeping them strong requires eating calcium-rich foods like dairy products, broccoli, and some fish. 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.