Most people have misconception about if the bone is a living structure. Inside the bone there is a living tissue which is the cortical bone and trabecular bone. Bone cells that responsible for bone production included osteoblasts, osteocytes and osteoclasts. Meanwhile, bone can heal itself when a bone fracture happen.
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
First of all, bone marrow is most often one of the forgotten parts of the body, but it is necessary in order for the bones in the hips and thighs to function properly. Bone marrow is the soft, fatty tissues that are inside of bones. Inside of the bone marrow there are cells called stem cells. These stem cells transform into red and white blood cells, and also platelets that help with blood clotting. Although stem cells are supposed to transform into blood cells, there can sometimes be problems with the way that the stem cells de...
Imagine a teenage boy who is isolated on a faraway island, without food or water. The hot and sticky weather is intolerable, but the rampaging storms are worse. He quickly develops malaria and diarrhea, and on top of that, blood-sucking insects and menacing reptiles lurch beneath his feet. He has no idea what is coming, but he needs to survive. This is the story of a young boy who has to travel to the other side of the world to realize that everything can’t go his way.
This week’s reading was about Langston Hughes and Zora Neale Hurston’s, “A Mule Bone”. This play expresses many conflicts that go on in small as well as large communities. The setting of this play however is in Eaton, Florida is the community in which Hurston is from. It describes the many conflicts that people have with certain relationships or religions.
Directed and written by Eric Bress and J. Mackye Gruber, the movie “Butterfly Effect” is about a young man (Kutcher) who blacks out harmfull memories of significant events of his life. As he grows up he finds a way to remember these lost memories and a supernatural way to alter his life. This movie teaches a simple lesson about life: one little thing in the past can change the whole outcome of life later. The book Bonesetter’s Daughter, by Amy Tan, also has something to do with past, as it is narrated by two people, mother and daughter, who talk about themselves, constantly referring back to the memories of their childhood. They regret the mistakes they have made as a little girl. If only they didn’t make the mistake in the past, they would have a totally different fate then.
So far, various techniques have been used for reconstruction and regeneration of maxillary and mandibular bone defects. Autogenous bone grafting, guided bone regeneration (GBR), distraction osteogenesis and nerve transpositioning are among these regenerative techniques (1-8). Decision making for the treatment could be influenced by the type, size and location of the bone defects (2, 3, 9, 10). GBR had high success rate in treating small alveolar defects such as dehiscence or fenestration. Regenerative bony walls around the defect with ingrowing blood vessels can begin osteogenesis (11) larger bone defects with insufficient regenerative walls and an low quality avascular bed need varied amount of autogeneous bone graft from extra oral or intra oral donor sites, however, the patient may suffer from complications in donor site as well as bone graft resorption.(10, 12-15)
Bones of the skeletal system serve as storage compartments for vital minerals like phosphorus and calcium. Excessive calcium in the blood is stored in bones. Calcium is released from the bones into the blood when there are deficient amounts of it in the blood.
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 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 provides functions such as support, protection, and movement. The skeletal system provides a framework that supports the body with muscles attached to them acting as levers allowing for movement. As bones are very rigid they provide support for vital organs such as the heart, lungs and brain. A physiological function of the skeletal system is the production of stem cells through red bone marrow found in the proximal epiphysis (the ends) which can become lymphocytes (white blood cells), erythrocytes (red blood cells) and thrombocytes (platelets).
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
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.
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.
What are the healthy components of bone? Your bones are made up of three major components that make them flexible and strong. They include collagen, calcium-phosphate mineral complexes, and living bone cells.
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.