Ossification Of Bones

Bones possess five important functions including, support, protection, movement, storage and blood cell formation (Marieb, 2012). Bones protect and support the body by acting as a rigid framework surrounding delicate organs and tolerating enormous pressure when weight bearing and moving (Marieb, 2012). Bones are also responsible for storing fat, minerals and producing blood cells (hematopoiesis) within the cavities of bone marrow (McCance & Huether, 2014) (Marieb,

Osteoclasts are bone-absorbing cells that breakdown bone and assist in depositing calcium and phosphate in the blood.

There are approximately two hundred six bones in our body and they're essential in our life. Bones consists of osseous tissue, nervous tissue, and epithelial and muscle tissue. Examples are the femur, humerus, clavicle, and sternum. The bones have many different functions in our bodies, but basically, their main functions are to provide support and protection for the body. Bones provide a framework that supports our body and bones such as skull, vertebrae and rib cage try to prevent internal organs from injuries. Also, bones enable movement by providing points of attachment for muscles and they produce blood cells, also known as hematopoiesis in the red marrow. Lastly, bones store minerals, such as calcium and phosphorus for different cellular activities and store lipids in adipose cells of the yellow marrow as an energy reservoir. There are different shapes and textures of bones. Bones can be flat, such as scapula and sternum, or irregular like the sphenoid bone and vertebra. Also, bones can be short or long. Examples of short bones are the carpal bone and talus and long bones are ulna, femur, and radius. In terms of texture, bones can be compact or spongy. Compact bones are dense and heavy while spongy bones are porous and light. Both types of bones are connective tissues. Usually compact bones are the out layer of a bone and spongy bones are the internal portion of the bone.

The frame work of our entire skeletal system is called the skeleton and it comprises mostly of bones. Bones are inflexible and strong providing structure and support to our body, without which we would be just another huge blob on the floor! Bones also provide the structure for muscles to attach so that our bodies are able to move about easily for which all the bones in out body link to form joints that permit proper movement. Our skeleton also protects out internal organs from getting damaged easily by providing a protective cover around it. A fully grown human skeleton consists of 206 bones whereas a new born baby has around 300-350 parts.

What are the roles of osteoclasts in bone formation? Osteoclasts are large cells that function to reabsorb, or to digest bone tissue. They digest bone tissue from the inner sides of bones thus enlarging the inner bone cavity so that the bone does not become overly thick and heavy.

There are two types of bone in the human body; Cortical bone is dense and compact, forms the outer layer of the bone and the trabecular bone forms the inner layer of the bone and is known as spongy bone (National Library of Medicine, 2016).

There are 206 bones of the human skeleton. Bone is a connective tissue that are considered organs. Bones are composed of collagen and a mineral called hydroxyapatite, it gives the bones its incredible strength. The bones are important structures in the body for several reasons they support, protect, produce hormones, store minerals and growth factors and allows the body to move. Homeostatic imbalance of the bone can result in diseases of the bone such as Osteitis Deformans, which causes a weak growth of development of bones.

One of the most important function of the bone is support, they provide support for our body and hold organs. Another Function of the bones is protection the rib cage protects our heart and lungs and the skull protects the Brain. Our bones help us move around. Our bones help in the production of Blood cells. Our bones Save energy and minerals like calcium and phosphorus.

Bones never finish growing. It is renewed throughout life by a twopart remodeling process, resorption and formation. During resorption, osteoclast cells break down minerals and remove old bone tissue. During formation, osteoblast

Bones is a living tissue that contain a blood vessel and nerves. It capable of moulding itself when it damaged.

This paper will discuss the composition and cells of bone, different types and organization of bone, bone remodeling, bone development in children, and bone fractures

Spongy bone- has space between the plate ( trabeculae) bone, some of them are filled with red bone marrow example the strenum, rib, hip bones, and hear the end of the long bones in production of red blood cell. Sponge bones make up most of the bone tissue flat, short, and irregular bones

Bones are living tissues. They provide support, protect organs, contain multiple minerals, and store the marrow that creates cells for our entire body. Bones consist of compact bone, cancellous bone, osteoblasts, osteocytes, osteoclasts, osteoid, and inorganic salts. Compact bone is a dense bone tissue that makes up eighty percent of the human skeleton. It is made of primarily of inorganic salts, which produce bone hardness, and contains tiny spaces for osteocytes. Matured compact bone is layered, it contains vascular canals that provide necessary blood supply for osteocytes. Cancellous bone makes up the remaining twenty percent of the human skeleton. It is lightweight and porous, allowing small spaces for bone marrow and blood vessels.

The skeleton is a very important part of the body and is separated into two sections: the appendicular and axial skeleton. The appendicular is any part of the body that attaches to another bone. Those include but not limited to the legs, arms, and hands. The axial bones are located within the center of the body like the spine and ribs. Bones in these two regions are classified into different shapes including long, short, irregular, and flat. Flat bones are found in the skull and ribs. The flat bones in the human body are flat and thin often curved. Short bones are the same size length wise and width wise. Those are found in the wrist and ankle. Irregular bone does not go into a category. This bone can be found in the pelvis. Lastly, is the

The skeletal system is made up of bones and joints. Bones are a dry dense tissue that is composed of calcium phosphorous and organic matter. The bones are protected and covered by a layer of fibrous connective tissue membrane called the periosteum (Brown, et al., 2015, p. 1547). There are two basic types of bone tissue: Compact Bone and Spongy Bone. Compact bones are dense smooth bones, while Spongy bones are composed of small needle-like pieces of bones and open space. Bones are then categorised according to the shape of the bone into four groups: long, short, flat and irregular. Long bones characteristically are typically longer then they are wide and generally have a shaft with heads at either ends e.g. the humerus. They are mainly compact bones. Short bones