The Skeletal System Essay

Our bone tissues are made of a much harder substance than the cartilage, but they can be worn away by friction. They are tough on the outside, but on the inside they have a sponge-like design that helps to reduce the weight while retaining strength. They are designed to maintain the body’s structure and support the body’s movement and are used to protect weaker tissues, such as the brain, lungs and heart.

The bones are made up of two minerals, including calcium. Calcium is critical in order to maintain the level of bone mass to support structures of the body. If calcium is truncated in other regions of the body then it will be released from the bones into the bloodstream sending it to the appropriate destination. Bones begin to weaken if an insufficient amount of calcium is not consumed. The body will discontinue absorbing calcium if an abundant amount of calcium is consumed, in which vitamin D aids this process.

The skeletal system is made up of cartilage and bone. Both bone and cartilage are connective tissues, that is, they are composed of cells in a matrix with intracellular fibers. Just imagine connective tissue as a gelatin salad with grapes and coconut. The grapes would represent cells, the gelatin the support material for matrix, and the pieces of coconut the intracellular fibers. By changing the amounts of each ingredient and adding extra substances, we can produce a material that is very hard like bone and can withstand weight or softer like cartilage which can be used as a cushioning material.

1- A function of the Skeletal System that is essential to life is the bones because there are many functions of the bones such as support , protection, movement, blood formation, detoxification, and mineral storage and balance.

Based on color, the cartilage was whitish in color while the bone was cream colored. The cartilage was relatively more flexible than the bone. On composition, bone is made up of calcium while cartilage is made up of hyaline materials. Upon piercing with a knife, the bone is resistant to piercing. On application of more force, it cracks and breaks unevenly as compared to the cartilage that is less resistant to piercing and was cut clean through upon application of a relatively lesser

Skeletal tissue is voluntary which means that it is used in the movements of the skeletal components.

Bones are structured to provide strength, protection, and movement. In addition the structure allows the bones to serve as a reservoir for several minerals including calcium because calcium can quickly move between the bone and the blood.

Bone tissue is hard and has a calcified matrix (where the pores are filled with calcium) containing collagen fibers; osteocytes (mature bone cells) lie in the lacunae (cavity containing bone cells). The key functions of bone tissues are: support and protect the body structure and provide cavities for fat storage and synthesis of blood cells. Because the matrix of bone tissue is hard and rigid, the tissue is able to provide support and protection to the

Type I collagen clearly contributes to the integrity and strength of bone matrix, and defects in its production leads to bone of poor quality, susceptible to fracture( Kini and Nandeesh 2012). Type I collagen is a triple helical structure consisting of two identical a1 chains and one a2 chain with a non-helical region where the N-telopeptide and C-telopeptide join to the crosslinks (Brown et al.,2009; Bergmann et al., 2009 ; Seibel 2005). During type I collagen synthesis, pro-peptides are released both from the N-terminal and C-terminal ends of the procollagen molecule, after the three individual alpha chains have created the triple helix, which will become part of the collagen fibril( Kini and Nandeesh

This system is made of bones which are composed mainly of collagen, a protein that is woven into a flexible framework,Bone also contains calcium phosphate and calcium carbonate, minerals that add strength and harden the framework. The combination of calcium and collagen gives the bone its strength and flexibility. This system provides support, movement, protection, blood cell production, calcium storage and endocrine regulation .

The skeleton system gives strength, support and shape to the human body. It also helps keep 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

thesis project. A description of the biology of bone will be provided first and its focus

Bone tissue is a connective tissue with an abundant matrix of intercellular substances that encloses widely separated cells. The bone matrix is made up of an inorganic component known as mineral salts that hardens the bone, and an inorganic component – collagen fibres and an amorphous mixture called ground substance, which gives the bone its strength (Tortora, Grabowski 2001). There are three types of cells that can be found in the bone, they are osteoblasts, osteoclasts and osteocytes. Osteoblasts are the cells that synthesizes a specialized organic material called osteoid which is important in the build-up of mineralized bone, osteoclasts are relatively larger multi nucleate cells made up of mitochondria and lysosomes that are responsible for the continuous erosion of bones. Lastly the last cells found in the bone are osteocytes, these are adult osteoblast cells found in the lacunae that have been surrounded by mineralized matrix. (Thibodeau, Patton 2003).Osteocytes are responsible for maintaining metabolism within the bone such as the exchange of nutrients with the blood.

The Skeletal System has many bones which contain protein, nutrients, and protects certain organs from damage. It also alters our shape.