1. Axial Skeleton and Appendicular Skeleton
Axial Skeleton - Is all of the 80 bones that are in the central axis or center of the human body. Here is a list of all the Axial bones.
Appendicular Skeleton - Is all of the 126 bones that are classified as appendages of the human body. Here is a list of all the Appendicular bones.
2. Three Main Functions of the Skeletal System
What a human would look like without a Skeletal System.
Support the body
The most obvious of the skeletal system's purposes is to support and strengthen the body. Without bones the human body would have no structure and the muscles would have nothing to move.
The most obvious of the skeletal system's purposes is to support and strengthen the body. Without bones the human body would have no structure and the muscles would have nothing to move.
The brain is completely protected by the skull.
Protect Soft Organs
Bones help protect the soft organs in our body from being punctured or harmed by outside forces. The human skeleton has specialized sets of bones which their only purpose is to protect organs. Some of these specialized bones are the rib cage, which mainly protects the heart and lungs, and the skull which is a large group of bones that connect to protect the most important organ in the body.
Bones help protect the soft organs in our body from being punctured or harmed by outside forces. The human skeleton has specialized sets of bones which their only purpose is to protect organs. Some of these specialized bones are the rib cage, which mainly protects the heart and lungs, and the skull which is a large group of bones that connect to protect the most important organ in the body.
The skeletal system is surrounded by attached muscles.
Allows Movement
The skeletal system has a large surface area which gives room for muscles to connect. These muscles extend and contract which in turn moves the skeletal system.
The skeletal system has a large surface area which gives room for muscles to connect. These muscles extend and contract which in turn moves the skeletal system.
Representation of yellow bone marrow.
Stores Minerals and Fats
Bones have a hollow center that is full of two types of marrow. Yellow bone marrow is used to store fat cells. These fat cells can only be acsessed by the body in extreme need of energy. In the case of severe blood yellow bone marrow can be converted by the body into red bone marrow.
Bones have a hollow center that is full of two types of marrow. Yellow bone marrow is used to store fat cells. These fat cells can only be acsessed by the body in extreme need of energy. In the case of severe blood yellow bone marrow can be converted by the body into red bone marrow.
Inside of femur lined in red bone marrow.
Blood Cell Formation
The other type of bone marrow is red bone marrow. Red bone marrow's primary job in the human body is to create new blood cells. In a newly born child red bone marrow is the marrow in the bones. This is due to the amount of growing that will occur throughout a human's childhood. Once an adult the red marrow is slowly replaced by yellow marrow so that the body can store energy.
The other type of bone marrow is red bone marrow. Red bone marrow's primary job in the human body is to create new blood cells. In a newly born child red bone marrow is the marrow in the bones. This is due to the amount of growing that will occur throughout a human's childhood. Once an adult the red marrow is slowly replaced by yellow marrow so that the body can store energy.
3. Main Types of Bones
The Femur is the largest long bone in the human body.
Long Bone
Some long bones are the largest in the human body. They are distinguishable because they are longer than they are wide. Features on the long bone include a long shaft with a head on each end. The interior of the long bone conisists of mostly compact bone.
Examples: Femur, Humerous, Tibia, Fibula, Ulna,and Radius
Some long bones are the largest in the human body. They are distinguishable because they are longer than they are wide. Features on the long bone include a long shaft with a head on each end. The interior of the long bone conisists of mostly compact bone.
Examples: Femur, Humerous, Tibia, Fibula, Ulna,and Radius
The Carpals consist of 8 short bones.
Short Bone
Short bones are can be very small since they are normally cube shaped. They can be found all throughout the body and are in areas where there needs to be more movement. Short bones are comprised of mostly a spongy bone interior.
Examples: Carpals and Tarsals
Short bones are can be very small since they are normally cube shaped. They can be found all throughout the body and are in areas where there needs to be more movement. Short bones are comprised of mostly a spongy bone interior.
Examples: Carpals and Tarsals
The Scapula a large flat bone.
Flat Bone
Flat bones are usually thin bones that appear to be flattened. Most flat bones are have a curve in them. The big difference from these bones is that they have two thin layers of compact bone that surrounds a layer of spongy bone in the center.
Examples: Ribs, Bones of the Skull, and Scapula
Flat bones are usually thin bones that appear to be flattened. Most flat bones are have a curve in them. The big difference from these bones is that they have two thin layers of compact bone that surrounds a layer of spongy bone in the center.
Examples: Ribs, Bones of the Skull, and Scapula
The unique shape of the Hyoid bone makes it an irregular bone.
Irregular Bone
Irregular bones are all of the bones that do not fit into any other group of bones. All of these bones have extremely unique shapes and specialized functions.
Examples: Vertebrea, Mandible, Sacrum, and Hyoid
Irregular bones are all of the bones that do not fit into any other group of bones. All of these bones have extremely unique shapes and specialized functions.
Examples: Vertebrea, Mandible, Sacrum, and Hyoid