The ends of the bone are covered with smooth articular cartilage; this acts as a sponge and also reduces friction when the joint is moving. A hinge joint produces a similar action to a hinge on a door in that, it makes an open a close movement. The joint allows flexion and extension and a small degree of side to side movement when the knee is flexed. It is enclosed in an articular capsule to unite the articulating bones and ligaments to strengthen it by limited movement. The articular capsule has two layers: -Fibrous capsule: the outer layer - Synovial membrane: the inner layer that secretes synovial fluid which lubricates to reduce friction.
This plate is a layer of hyaline cartilage that allows the diaphysis of the bone to grow in length but not in width. • Articular cartilage is a thin layer of hyaline cartlage covering the epiphysis where the bone forms a joint with another bone. This
Flat bones provide protection for the internal organs including the brain, heart, lungs, liver and kidneys. The flat bone is made up of two layers of compact bone with a layer of spongy bone in the middle. 3) The epiphyseal plate is located in the metaphysis of the long bones which is found between the epiphysis and diaphysis. The epiphyseal plate is made up of hyaline cartilage. The cartilage makes it possible for the diaphysis to grow in length, thus the epiphyseal plate is also known as the growth plate.
Compact bone tissue is found on the exterior of most bones. • Cancellous: This bone tissue is spongy and found at the ends of long bones and also in the pelvic bones, ribs, skull and vertebrae of the spinal column. Only cancellous bone
The muscle tissue has four main properties; Excitability, Contractibility, Extensibility and Elasticity. Excitability; The ability to respond to stimuli. Contractibility; The ability to contract. Extensibility; The ability to stretch without causing a tear. Elasticity; The ability to be able to return to normal shape.
Yosur Skeletal system is all of the bones in the body and the tissues such as tendons, ligaments and cartilage that connect them. Your teeth are also considered part of your skeletal system but they are not counted as bones. Your teeth are made of enamel and dentin. Enamel is the strongest substance in your body. Fused bones include those of the pelvis and the cranium.
The male skeleton also seems to have longer, thicker bones in the arms, legs, and fingers. Also the male’s pubic bones are much sharper in males, which means that they tend to have a more circular, narrow, and almost more shaped like a heart pelvis. In a female skeleton the pelvic bones are shorter and more rounded, and the bones around the pelvic bones are designed to be more flexible to accommodate gestation and child birth. This happens because the space between the two major pelvic bones has to be large enough to accommodate a baby’s head and the shoulders during a child delivery. The bones of the skull in a female are usually more graceful and less angular.
Wrinkles, however, are formed in lower layers. The dermis The dermis is the middle layer of the skin located between the epidermis and subcutaneous tissue. It is the thickest of the skin layers and comprises a tight, sturdy mesh of collagen and elastin fibers. Both collagen and elastin are critically important skin proteins: collagen is responsible for the structural support and elastin for the resilience of the skin. The key
The axial skeleton contains the skull, spine, ribs, and the sternum and includes another 80 bones. The appendicular skeleton includes the limb girdles and their attached limb bones. This part of the skeletal system contains 126 bones, 64 in the shoulder and upper limbs. The limbs are some of the easiest bones to break as they are away from the bodies protection and seeing as we land on them awkwardly and break them. Their are many major bones in the body,im going to list the 15 that i believe are the most important ones with a muscle that attaches to it.
This type of joint is one of six synovial joints called the ball and socket joint. A synovial joint is a freely moveable joint with distinctive features. They all have a smooth cartilage covering the ends of the bones and a double layered capsule which encloses the joint cavity. The outer layer is tough and is used for protection against excessive movement in lots of directions, while the inner layer is used to release synovial fluid to help lubricate the joint during motion. This part of the capsule is known as the synovial membrane.