How is your spine supposed to look. Simple Tips to Keep Your Nervous System Healthy.



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What does a normal spine look like?



How is your spine supposed to look

Wherever you looked, there were vampires, ghosts, or bony skeletons grinning back at you. Vampires and ghosts don't really exist, but skeletons sure do! Every single person has a skeleton made up of many bones. These bones give your body structure, let you move in many ways, protect your internal organs, and more. It's time to look at all your bones — the adult human body has of them! What Are Bones Made Of? If you've ever seen a real skeleton or fossil in a museum, you might think that all bones are dead. Although bones in museums are dry, hard, or crumbly, the bones in your body are different. The bones that make up your skeleton are all very much alive, growing and changing all the time like other parts of your body. Almost every bone in your body is made of the same materials: The outer surface of bone is called the periosteum say: It's a thin, dense membrane that contains nerves and blood vessels that nourish the bone. The next layer is made up of compact bone. This part is smooth and very hard. It's the part you see when you look at a skeleton. Within the compact bone are many layers of cancellous say: KAN-sell-us bone, which looks a bit like a sponge. Cancellous bone is not quite as hard as compact bone, but it is still very strong. In many bones, the cancellous bone protects the innermost part of the bone, the bone marrow say: Bone marrow is sort of like a thick jelly, and its job is to make blood cells. How Bones Grow When you were a baby, you had tiny hands, tiny feet, and tiny everything! Slowly, as you grew older, everything became a bit bigger, including your bones. A baby's body has about bones at birth. These eventually fuse grow together to form the bones that adults have. Some of a baby's bones are made entirely of a special material called cartilage say: Other bones in a baby are partly made of cartilage. This cartilage is soft and flexible. During childhood, as you are growing, the cartilage grows and is slowly replaced by bone, with help from calcium. By the time you are about 25, this process will be complete. After this happens, there can be no more growth — the bones are as big as they will ever be. All of these bones make up a skeleton that is both very strong and very light. Your Spine Your spine is one part of the skeleton that's easy to check out: Reach around to the center of your back and you'll feel its bumps under your fingers. The spine lets you twist and bend, and it holds your body upright. It also protects the spinal cord, a large bundle of nerves that sends information from your brain to the rest of your body. The spine is special because it isn't made of one or even two bones: It's made of 33 bones in all! These bones are called vertebrae say: VER-tuh-bray and each one is shaped like a ring. There are different types of vertebrae in the spine and each does a different kind of job: The first seven vertebrae at the top are called the cervical say: These bones are in the back of your neck, just below your brain, and they support your head and neck. Your head is pretty heavy, so it's lucky to have help from the cervical vertebrae! Below the cervical vertebrae are the thoracic say: These guys anchor your ribs in place. Below the thoracic vertebrae are five lumbar say: Beneath the lumbar vertebrae is the sacrum say: SAY-krum , which is made up of five vertebrae that are fused together to form one single bone. Finally, all the way at the bottom of the spine is the coccyx say: COK-siks , which is one bone made of four fused vertebrae. The bottom sections of the spine are important when it comes to bearing weight and giving you a good center of gravity. So when you pick up a heavy backpack, the lumbar vertebrae, sacrum, and coccyx give you the power. When you dance, skip, and even walk, these parts help keep you balanced. In between each vertebra the name for just one of the vertebrae are small disks made of cartilage. These disks keep the vertebrae from rubbing against one another, and they also act as your spine's natural shock absorbers. When you jump in the air, or twist while slamming a dunk, the disks give your vertebrae the cushioning they need. Your Ribs Your heart, lungs, and liver are all very important, and luckily you've got ribs to keep them safe. Ribs act like a cage of bones around your chest. It's easy to feel the bottom of this cage by running your fingers along the sides and front of your body, a few inches below your heart. If you breathe in deeply, you can easily feel your ribs right in the front of your body, too. Some thin kids can even see a few of their ribs right through their skin. Your ribs come in pairs, and the left and right sides of each pair are exactly the same. Most people have 12 pairs of ribs, but some people are born with one or more extra ribs, and some people might have one pair less. All 12 pairs of ribs attach in the back to the spine, where they are held in place by the thoracic vertebrae. The first seven pairs of ribs attach in the front to the sternum say: STUR-num , a strong bone in the center of your chest that holds those ribs in place. The remaining sets of ribs don't attach to the sternum directly. The next three pairs are held on with cartilage to the ribs above them. The very last two sets of ribs are called floating ribs because they aren't connected to the sternum or the ribs above them. But don't worry, these ribs can't ever float away. Like the rest of the ribs, they are securely attached to the spine in the back. Your Skull Your skull protects the most important part of all, the brain. You can feel your skull by pushing on your head, especially in the back a few inches above your neck. The skull is actually made up of different bones. Some of these bones protect your brain, whereas others make up the structure of your face. If you touch beneath your eyes, you can feel the ridge of the bone that forms the hole where your eye sits. And although you can't see it, the smallest bone in your whole body is in your head, too. The stirrup bone behind your eardrum is only. Want to know something else? Your lower jawbone is the only bone in your head you can move. It opens and closes to let you talk and chew food. Your skull is pretty cool, but it's changed since you were a baby. All babies are born with spaces between the bones in their skulls. This allows the bones to move, close up, and even overlap as the baby goes through the birth canal. As the baby grows, the space between the bones slowly closes up and disappears, and special joints called sutures say: SOO-churs connect the bones. Your Hands As you sit and type at the keyboard, while you swing on a swing, even when you pick up your lunch, you're using the bones in your fingers, hand, wrist, and arm. Each arm is attached to a shoulder blade or scapula say: SKA-pyuh-luh , a large triangular bone on the upper back corner of each side of the ribcage. The arm is made up of three bones: HYOO-muh-rus , which is above your elbow, and the radius say: RAY-dee-us and ulna say: UL-nuh , which are below the elbow. Each of these bones is wider at the ends and skinnier in the middle, to help give it strength where it meets another bone. At the end of the radius and ulna are eight smaller bones that make up your wrist. Although these bones are small, they can really move! Twist your wrist around or wave and you'll see how the wrist can move. The center part of your hand is made up of five separate bones. Each finger on your hand has three bones, except for your thumb, which has two. How is your spine supposed to look

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6 Comments

  1. As the legend goes, chiropractic medicine was born on September 18, , when Daniel David Palmer, a magnetic healer in Davenport, Iowa, met a deaf janitor named Harvey Lillard. The center part of your hand is made up of five separate bones. RedViv March 8, , 4:

  2. COK-siks , which is one bone made of four fused vertebrae. Bishara, a pediatric cardiologist in Louisiana, doubted if a chiropractor could spot issues that typically take years of traditional medical training to identify.

  3. Here is more information about how regular massages can help your back and spine. I think i stopped playing completely when I got to the level with the grim Reaper dude. Bone marrow is sort of like a thick jelly, and its job is to make blood cells.

  4. Have had every complication possible, but was lucky always to be in fine hospitals with excellent nurses and smart smart doctors. A recent Wisconsin bill proposed that schools would have to allow exams performed by chiropractors to fulfill sports physical requirements. It opens and closes to let you talk and chew food.

  5. The pelvis acts as a tough ring of protection around parts of the digestive system, parts of the urinary system, and parts of the reproductive system. SKA-pyuh-luh , a large triangular bone on the upper back corner of each side of the ribcage. Well, with the bones of the legs and feet!

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