In mammals, longitudinal bone growth occurs at the growth plate by endochondral bone formation. The growth plate consists of three principal zones: resting, proliferative, and hypertrophic. The resting zone lies adjacent to the epiphyseal bone and contains infrequently dividing chondrocytes. The proliferative zone contains replicating chondrocytes arranged in columns parallel to the long axis of the bone. The proliferative chondrocytes located farthest from the resting zone stop replicating and…
Bone Marrow Bone marrow is soft, gelatinous tissue found in hollow spaces in the interior of most bones. It is highly vascular and enriched with many blood vessels and capillaries. The average weight of bone marrow is about four percent of the total body weight (Bone Marrow Anatomy). Bones that contain bone marrow are: the hip bone, breast bone, skull, ribs, vertebrae, shoulder blade and thigh bone. Bone marrow contains immature cells, called stem cells. It is the place where new blood cells…
1. The skull bones protect the brain from injury, the vertebra surrounds the spinal cord and the rib cage helps protect important organs of the thorax. Some examples are: the bones in our skull protect the brain and the ribs protect the heart and lungs. The bones make a structure that supports our body and holds and protects soft organs. Some examples are: the bones of the lower limbs provide support to the body trunk when we stand, and the rib cage supports the thoracic wall. 2. The skeletal…
Introduction Determination of bone mineral density helps in assessing bone quality. For instance, loss of bone mass which is obtained clinically as the change in BDM (bone mineral density) aids in determining bone fragility (Paschalis, 2009). Though, bone mineral density cannot be used alone to indicate that someone will suffer from bone fracture since there is the difference in BDM between the populations. Some people in a particular community develop bone fracture while others do not. Some…
Position Statement Magnesium vs. Calcium for Bone Health The other day author Ms. New covered with coworkers about human bones. One of Ms. News’s co-workers incidentally broke her arm during vacation. Each person reflected upon when they had broken their bones. The conversation sparked an interest in Ms. New about bone health. Often people consider the structure of the muscle and fat built into the body. However, many people are oblivious to bone health. The bones have the important task to…
complete, refer to the way the bone breaks. The incomplete fracture is when the bone cracks, but does not break all the way through. As with the complete fracture, the bone breaks in two or more parts. With the compound or simple fracture, this is referring to rather or not the bone broke through the skin. With a compound fracture, also known as an open fracture, the bone breaks, also breaking through the patient's skin. As with the simple fracture, or closed fracture, the bone breaks, but does…
Bone cancer is a tumor of the bone that demolishes normal bone tissue in which some cases, may spread to other areas of the body. This disease, generally, is life threatening, it causes tissues such as blood vessels, nerves, and bones to be destroyed by the cancer. Those with bone cancer have abnormal cells and when these cells get in the bloodstream, they can move to different parts of the body and spread the cancer. (Bone Cancer, 2016). Benign (noncancerous) bone tumors are more common than…
In the novel ‘The Lovely bones’ written by Alice Sebold is about a 14 year old girl named Susie Salmon who got murdered by Mr Harvey. Susie finds it hard to grasp the fact that she has died and can't go back to her family. Instead she has to watch her family go through her death and not know what happened to her. Also, Susie has to watch her murderer get another target which happens to be her sister. I really enjoyed this book because you always want to know what would happen next to Susie or…
their souls escape their body and roam around with the living? In this case, Susie Salmon in, The Lovely Bones by Alice Sebold, sees it all, from every word said, every action made, and idea thought. Susie Salmon was just fourteen years old when a familiar face in her neighborhood took her life. Mr. Harvey raped and killed Susie after an ordinary day walking home from school. What made The Lovely Bones such a significant read was the first perspective narration. Susie was able to provide intel…
Bone Metastasis Bone metastasis is cancer that spreads to the bones from another part of the body. A person may have bone metastasis in one bone or in more than one bone. Cancer that spreads to the bones is different from cancer that starts in the bones (primary bone cancer). Bone metastasis is more common than primary bone cancer. The spine is the most common area for bone metastasis. Other common areas include the: • Hip bone (pelvis). • Ribs. • Skull. • Long bones of the arm or…