Cancellous bone

STRUCTURE OF LONG BONES: Hyaline cartilage: covers the end of the bone, smooth surface stops the bones and absorbs shock. Epiphysis: this is the extremity name of the bones. Cancellous bone: is known as spongy bone, its help to store red bone marrow in the blood cells. Epiphyseal plate: is a line across the bone starting from where the bone grows in length. Diaphysis: this is the shaft of the bone. Compact bone: It surrounded by yellow bone marrow in the diaphysis and gives strength to the hollow

that the bones of the rats will not develop differently due to them weighing more than normal. The rats

structure of a long bone. Materials: ●A long bone that has been sectioned longitudinally (by a butcher) ●Gloves ●Probe Procedure: Use your probe (gently) to find where the bone ends and the marrow cavity begins. Examine the structure of the bone of the shaft. This bone is continuous with the outer layer of bone at each end. It is called compact bone and is very, hard dense and strong. Examine the structure of the bone forming the swellings at each end of the shaft. The bone inside the swellings

is made up of 206 bones which protects, support and allows the human body to move. The skeletal system also consists of tissues such as; tendons, ligaments and cartilage - these components connect the bones together which results to the posture and framework of the body. The skeletal system of a new born baby consists of more bones than an adult (roughly 300 bones); this is because the bones have not been joined together by the tissues. As the human body grows, the smaller bones are joined together

muscular system. At the cellular level, bone provides a reservoir of growth factors and cytokines, maintains the acid-base balance and mineral homeostasis, and is the site of hematopoeisis. Like other connective tissue, bone has both a cellular and an extracellular matrix component. The matrix is made up of collagen fibers and noncollagenous proteins, with type I collagen accounting for ~90% of total protein, and the noncollagenous osteocalcin, osteopontin, and bone sialoprotein, and others making up

The Human Skeletal System Introduction The human skeletal system is comprised of both fused and individual bones; supported and supplemented by ligaments, tendons, muscles and cartilage. The skeletons purpose is to protect and support the delicate internal organs and provide a framework that allows the body to stand upright and move. It also produces blood cells and stores minerals that our body needs to function effectively. The skeletal system is a very important part of the human body. Without

fracture because of (A) the loss of spongy bone in the epiphyses and (B) the thinning of the bony collar in the diaphysis. 6. Describe the changes that a broken bone undergoes as it is healing. The bony collar of long bones helps them withstand compressive stress by the mechanism described in #4A above (i.e. hydroxyapatite, weight-bearing pillars). In addition, long bones also withstand compressive forces by virtue of the spongy ("cancellous") bone in the epiphyses. The interlocking network

made up of 206 bones held together by ligaments, whilst joints provide mobility. Ligaments are a band of tough, flexible connective tissue which connects two bones. The skeleton forms a frame at which the internal organs rest and over which muscles and skin is layered over. The bones of the human skeleton are divided into 2 groups: axial and appendicular skeletons. The axial skeleton forms the axis of the body and it includes the bones of the skull, ribcage and the spine. These bones are there to

the types of cells, tissues and structure of bones as well as the formation of enamel and dentine. The first practical session dealt with the microscopic identification of different structure in growth and development of bone and enamel as well as dentine formation. The other aims of the practical class was to be conversant with the microscopic identification and description of the cells, tissues in the bone development, and overall function of the bone. Materials The materials used for the present

framework for the skeleton, it is the central core of the human body. The total bones that make up the axial skeleton totals at 80 which conisist of the skull, inner ear, the vertebral column, throat, rb cage, and the sternum all fused allowing no movement to occor. The appendicalur skeleton is often referred to as the ‘outer skeleton’, it holds and supports the limbs of the human body with tendons and cartilage it includes 126 bones xonsisting of the shoulder girdle, pelvic gurdle, legs arms, feer and hands