Alexia Gillis
Midterm Case Study
1. A hemorrhage is an escape of blood from a ruptured blood vessel. A fracture is any loss of continuity of bone. Proximal is situated close to or nearest the point or attachment or origin to the trunk of the body. Diaphysis is the shaft or central part of a long bone.
2. The humerus is a long bone located in the upper arm. It is classified as a long bone because the bone is longer than it is wide. The occipital bone is located on the posterior inferior part of the skull. This bone is classified as a flat bone due to broad, flat, and thin shape. Lastly, the lumbar vertebral bone is found along the body’s midline in the lower back region. It can be classified as an irregular bone due to it not fitting in with …show more content…
The addition of new bone tissue is known as ossification. It is carried out by osteoblast which are the bone forming cells. Osteoblast began by laying an “organic matrix formed from collagen into the area of new bone formation. Mineralization takes place over a period of days to weeks, leading to finalized bone tissue. This bone is remodeled to match the shape of the bone before breakage” (Ossification).
8. Osteoclasis is the term used to define the breaking down of osseous tissue. The bone cell that is best suited for this task is an osteoclast. The osteoclast is a bone absorbing tissue that helps break down unwanted tissue during growth and regeneration.
9. The bone matrix is composed of both organic and inorganic substances. The organic substances include collagen, proteoglycans, matrix proteins, cytokines, and growth factors. The inorganic substance includes calcium hydroxyapatite and osteocalcium phosphate. The osteoclasts are involved in the breakdown and reabsorption of the bone. When they are breaking down the bone they rest in the resorption bay and display a ruffled border. This ruffled border increases the surface area for the bones that are being destroyed and seal off the area from the matrix
Midterm Case Study
1. A hemorrhage is an escape of blood from a ruptured blood vessel. A fracture is any loss of continuity of bone. Proximal is situated close to or nearest the point or attachment or origin to the trunk of the body. Diaphysis is the shaft or central part of a long bone.
2. The humerus is a long bone located in the upper arm. It is classified as a long bone because the bone is longer than it is wide. The occipital bone is located on the posterior inferior part of the skull. This bone is classified as a flat bone due to broad, flat, and thin shape. Lastly, the lumbar vertebral bone is found along the body’s midline in the lower back region. It can be classified as an irregular bone due to it not fitting in with …show more content…
The addition of new bone tissue is known as ossification. It is carried out by osteoblast which are the bone forming cells. Osteoblast began by laying an “organic matrix formed from collagen into the area of new bone formation. Mineralization takes place over a period of days to weeks, leading to finalized bone tissue. This bone is remodeled to match the shape of the bone before breakage” (Ossification).
8. Osteoclasis is the term used to define the breaking down of osseous tissue. The bone cell that is best suited for this task is an osteoclast. The osteoclast is a bone absorbing tissue that helps break down unwanted tissue during growth and regeneration.
9. The bone matrix is composed of both organic and inorganic substances. The organic substances include collagen, proteoglycans, matrix proteins, cytokines, and growth factors. The inorganic substance includes calcium hydroxyapatite and osteocalcium phosphate. The osteoclasts are involved in the breakdown and reabsorption of the bone. When they are breaking down the bone they rest in the resorption bay and display a ruffled border. This ruffled border increases the surface area for the bones that are being destroyed and seal off the area from the matrix