The Skeletal System - Bone Essay Example
The skeletal system is one of the most important systems in the human anatomy - The Skeletal System introduction. Without this system our bodies wouldn’t have any source of motion or movement. From the skull all the way to the toes of our feet, everything is important. Out of the 206 bones, they all form our different shapes and make us all unique. They create our frame work and enables us the move and perform our different activities during our everyday life. Another thing that the skeletal system does is protects all of our vital organs. The heart and lungs wouldn’t be anything without our sternum and rib cage.
That’s why when you break a rib it hurts to breathe. The rib you have broken keeps poking your lungs, and in some case can poke a hole in your lungs. It also produces blood cells; the marrow in some bones produces these. 2. 6 million Blood cells are produced a second. These blood cells are used to carry oxygen to and from your lungs. Without oxygen, well you’d die in a matter of 20 minutes. Another fact to consider is that bones also serve as a storage area. They store needed calcium and phosphorus. Without these minerals we wouldn’t grow.
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Neither would our blood cells, or tissues. So when we are born, that’s how small we would be for the rest of our life. Crazy isn’t it? There are many uses of the skeletal system. Different bones do different things and have different functions. The Spine, the ribs, and the femur are some of these many different bones. I think it’s about time I tell you about these, so that’s what I intend to do next. The Spine The spine is one of the most (if not the most) important bones in the human body. It is the “back-bone” of the body if you will.
It looks like a column of bone and cartilage that goes from the back of your head all the way to the pelvic region. The reason I say that it is probably the most important bone is the body is because it houses the spinal cord. The spinal cord sends signals to the different parts of the body. These signals permit us to fulfill different functions. Such as moving our arms, legs, fingers, toes, etc. The spine is made up of two different things, 33 different bones called “vertebrae” and disks. The Ribs The ribs are the flat, curvy framework of bones that protect the upper rgans. They connect to the back of the spine and have small muscles that help us breathe. These muscles expand and relax, this is why our chest seem to move when we breathe. There are 12 different kinds of ribs. The 7 “true ribs” and 5 “false ribs. ” The 7 “true ribs” are attached to the sternum. The 5 “false ribs” are called this for a reason. These ribs do not directly touch the sternum. The Femur The femur is the last thing I’m going to talk about. The femur is also known as the thigh bone. It’s the longest bone in the body.
The upper part of the bone is rounded off into a ball. This ball is connected to the socket in the hip. The kneecap bring together the other bone that forms the leg called the tibia. The femur is also the most proximal bones in the body. It permits us the run, jump, and perform to the numerous activities. Conclusion The skeletal system is a vital part of our anatomy. I told you of a few things about 3 of 206 bones. These 206 bones make up our person, as well of many different animals. I hope you have a better understanding of this system.