The skeletal system consists of 206 bones and has other body attachments that assist in connecting them which are tendons, ligaments, and cartilage. The skeletal system provides vital functions for the human body. The functions this system provides are support, movement, protection, blood cell production, storage for calcium and endocrine regulation. Bone serves as the basic unit of the human skeletal system. Ossification is characterized as a process that produces new bone. This process is also known as bone formation. Bone formation consists of two types of development. They are intramembranous and endochondral formation. Intramembranous ossification takes place when cells within the membrane change and become osteochondral progenitor cells. …show more content…
They also differ in the types of bones that make up their individual skeletons. Axial skeleton consists of bones from the skull, vertebral column, ribs and sternum and the appendicular skeleton consists of bones from the limbs, pelvis girdle, and pectoral girdle. The skeletal system is crucial for the human body to continue functioning and maintaining homeostasis. To protect different sections of the body there are 5 types of bones that serve a specific function for the system. The first type is long bone. Long bones are hard bones that provide strength, structure and mobility. (Medicine Net) These bones are longer than they are wide and they are mainly located in the appendicular skeleton. They also consist of several sections which are Diaphysis, epiphysis, metaphysic, and epiphyseal plates. The diaphysis is the long central shaft. Next, Epiphysis forms into the large ends of long bones while the area between the diaphysis and epiphysis is also known as metaphysis. Lastly, epiphyseal plates are plates of cartilage that allow growth to take place during childhood years. Cartilage cell production stops when the human body stops growing and the plates eventually become replaced by bone. Flat …show more content…
These functions are mineral storage, energy storage, and hematopoiesis. In regards to metabolic reaction, this system has extremely critical functions that are important for the entire body. The cells in bone tissues have chemical processes that produce the energy and substance needed to maintain life. The first function is the role of bone matrix. (Baumie) The bone matrix plays the role as a supply for minerals that are important to the body functions. The two main minerals are calcium and phosphorus. To keep the stability that is needed to support physiological processes the minerals can be released back into the bloodstream. (Baumie) For example, calcium ions are necessary for muscle contractions and flow of other ions that take place in the transferral of nerve impulses. (Baumie) The next function that is important for homeostasis is hematopoiesis. This process is responsible for producing new blood cells in the body. Hematopoiesis has three types of blood cells and they are able to become more than one type of a cell. (Baumie) Cells that are capable of producing more cells of the same type are called stem cells. The stem cells that are a result of hematopoiesis are Pluripotent stem cells, multi potent stem cells, and committed progenitor cells. Stem cells are not the only production from this process. The three types of white blood cells that are also produced
However some of the basic bone functions include storing of crucial nutrients, minerals and lipids, producing red blood cells for the body, protect the organs such as heart, ribs and the brain, aide in movement and also to act as a buffer for pH. With the differences in all of the bones there are four things that remain the same in each bone, their cells. Bones are made up of four different cells; osteoblasts, osteoclasts, osteocytes and bone lining cells. Osteoblasts produce and secrete matrix proteins and then transport the minerals into the matrix. Osteoclasts are responsible for the breaking down of tissue. The osteoblasts and osteoclasts are both responsible for remodeling and rebuilding of bones as we grow and age. The production of osteoclasts for resorption is initiated by the hormone, the parathyroid hormone. Osteocytes are the mature versions of osteoblasts because they are trapped in the bone matrix they produced. The osteocytes that are trapped continue making bone to help with strength and the health of the bone matrix. The bone lining cells are found in the inactive bone surfaces which are typically found in
An osteoblast is a “baby” bone cell whose main job is to secrete osteoid which forms the hardened, or calcified, bone matrix. Osteocytes are formed from osteoblasts. Osteocytes are the mature bones cells that have been completely differentiated. They are found in the lacunae of hard bone and have a spider-like appearance due to their canaliculi. Osteoclasts are a different type of cell formed from the mesenchymal cells. These cells are not related to osteoblasts or osteocytes. Their job is to basically “eat” the bone to create cavities and other hallow spaces during bone remodeling. Finally, the cells form differentiate to form fibroblasts and fibrocytes. These fibroblasts and fibrocytes secrete and form the matrix for fibrous connective tissue which is an essential component of the
Stem cells are the building blocks of the human body. Embryos consist of unspecialized stem cells that transform into the various specialized cells in the body such as cardiac, muscle or bone cells. Fetuses also have stem cells. However, the stem cells are divided into types like muscle, bone or nerves and don't perform a specialized function. Surprisingly, adult bodies also contain stem cells. In adults, stem cells are undifferentiated but limited to specific tissue type. When needed, the stem cells transform into the cells needed for repair and maintenance. The most common source of adult stem cells is bone marrow. Researchers also acquire stem cells from umbilical cords. Without stem cells, embryos could not develop into fetuses and adult
The body is composed of cells, which form the basic unit of life. Unique cells found in the body are the stem cells. These cells are biological cells that are not specialized for particular functioning in organisms. They can be distinguished since they have the ability to differentiate or divide into multiple body cells, and their ability to replicate self. They are unique in the way they can renew themselves by undergoing cell division when inactive for a long period. It is also possible to induce stem cells to organs or tissue cells under some conditions. When the cells divide, they replenish the cells in a living organism. They serve as an internal system that repairs and replaces the tissues that are worn out.1 Dividing cells may remain as stem cells or become specialized in their functions, for instance red blood cells, brain or muscle cells.
The system of the body that consists of bones, connective tissues, and cartilage is known as the skeletal system. Some major functions of this system are as follows:
The skeletal system helps with endocrine regulation, protection, support, movement, calcium storage, and blood cell production. The skeletal system consists of 206 bones, in the adult human body, all of which are divided into two major divisions. One division, the axial skeleton made up from 80 bones, runs along the body’s midline and the other division, the appendicular skeleton which has 126 bones.
The Skeletal system performs vital functions; supports movement, protection, blood cell production, calcium storage and endocrine regulation. That enables the human body to survive.
Osteoporosis is a serious disease that leads to a faster than normal loss of the bone density, which puts the bone at a higher risk for fractures. In order to understand the causes of Osteoporosis, it is important to understand how bones are formed. Bone is a living tissue that is made mainly of collagen, calcium phosphate, and calcium carbonate. The mixture of collagen and calcium gives the bone strength and flexibility. The body deposits new bones and removes old ones; moreover, there are two types of bone cells that control the reproduction of bones. Cells called osteoclasts breakdown bone tissues thus, damaging the bone. Once the damaged bone is removed, cells called osteoblasts, use minerals including calcium and phosphate from the blood stream to make new healthy bone tissues. In order for osteoblasts and osteoclasts to work properly, hormones such us thyroid, estrogen, testosterone, and growth hormones are
The three functions of the skeletal system are to support, to allow movement, and to protect. The skeleton is the framework of the body and also cradles its soft organs, with it the body would be just a jelly mass it wouldn’t have no definite shape and would just collapse. It supports the softer tissues and provides points of attachment for more skeletal muscles to hold all of the parts of the body upright. For example, the bones of the legs as pillars to support the body trunk we stand up. It also supports the body against the pull of gravity. The skeletal allows movement. The skeletal muscle attached to the bones by tendons and uses the bones as a simple mechanical lever system to move the body and its parts. All together with the muscles
Epiphysis, is spherical in shape and is located at both the distal and proximal end of a long bone. It consists of an irregular latticework of needle-like threads of bone called trabeculae. Therefore, the spongy bone in the epiphyses help to withstand compressive forces. It passes on strength to a bone by adding minimum weight. The trabeculae also helps to develop the weight of the body out of the bony collar of the diaphysis.
Although your teeth are also considered part of your skeletal system, they are not counted as bones. Your teeth consist of enamel and dentin. Enamel is the strongest substance in your body. The main priority of the skeletal system is to provide support for the body. Without bones our body would be in a pile of guts and mush on the floor. Your skeleton furthermore assists to protect your internal organs and fragile body tissues. The brain, eyes, heart, lungs and spinal cord are all sheltered by your
From the class I attended, I learnt that human's body is regulated and complex, but also could be simply viewed as skeleton, known
The skeletal system is composed of two hundred and six bones in the human body. Functions such as the tendons, cartilage, and ligaments connect the bones and tissues together. Bone tissues make up about 18% of the weight of the human body. There are two types of tissue inside the bones. They consist of; compact bone and spongy bone. First, compact bone depicts the main shaft of long bones in the human body such as the arms and legs. Its tissue is dense and hard and it also makes up the outer layer of most bones in our body. Meanwhile, spongy bone tissue is made up of smaller plates occupied with red bone marrow. Mostly, it is found at the ends of long bones such as the head of the femur.
Twenty-eight bones make up the skull. Eight of these bones are interlocking plates. These plates form the cranium.
The Skeletal System, also known as the Skeleton make up a framework that support the body and protect the organs. The Skeleton consists of the bones and joints of the body. In the human body there is 300 bones at birth, these then fuse together to make 206 bones in a fully grown adult. The Skeleton is made up of two divisions: The axial and appendicular Skeleton.