The skeletal system includes all of the bones and joints in the body. Each bone is a complex living organ that is made up of many cells,, protein fibers, and minerals. The skeleton provides support and protection for the soft tissues that make up the rest of the body. The skeletal system also provides attachment points for the rest of the body allowing movement. The skull is composed of 22 bones that aid in the support and movement, and protection of the brain.
List the general characteristics of vertebrates. The general characteristics of vertebrates are two unique features of vertebrates: a skull and a backbone. The skull forms a hard case for the brain. The backbone is composed of a series of skeletal segments called vertebrae (singular, vertebra), which enclose the nerve cord. 4.
Lever; almost always the bone Fulcrum; the pivot point of the lever in which is usually the joint. Muscle force; the force that drives the opposite ends of the muscles together. Resistive force; the force generated by a factor to the external body Torque; the degree in which a force tends to rotate an object. http://www.answers.com/topic/first-class-lever http://www.answers.com/topic/first-class-lever There are three different types of levers in the body; First-class, Second-class and Third-class. First-class; when the muscle force and resistive force is on different sides of the fulcrum e.g.
Femur a. commonly called the thigh bone; it’s the largest, longest and strongest bone in the body b. The round knobs at the end of the bone are called condyles 5. Fibula a. long, thin bone in the lower leg on the lateral side, and runs along side the tibia from the knee to the ankle
The human body has 206 bones which are organized in the skeleton. It functions as a protection of vital organs, forms the framework of the body, and supports vital body functions, such as physical movement, as well as communication. The skull encases the soft tissue in the human brain, the rib cage and sternum, shield the heart and lungs from the surrounding environment, and the pelvis safely houses our internal organs. Humans have an endoskeleton which is inside the body, and is split into two main divisions, the axial skeleton and the appendicular skeleton. The axial skeleton consists of 80 bones and comprises the skull (facial bones and cranial bones), hyoid bone, , vertebral column, auditory ossicles and the thorax (the sternum and the rib bones form the thorax).
The brain, eyes, heart, lungs and spinal cord are all protected by your skeleton. Your cranium skull protects your brain and eyes, the ribs protect your heart and lungs and your vertebrae spine, backbones protect your spinal cord. Bones provide the structure for muscles to attach so that our bodies are able to move. Tendons are tough inelastic bands that hold attach muscle to bone. There are many differences between the male and female human skeletons.
2a Describe an example of a weight-bearing synovial joint and explain how this joint is well-suited to the function it performs. (Include a description of the type of joint, the movements that the joint allows, and the muscles that facilitate these movements) (2.1) An example of a synovial joint is the knee joint in which it is freely moveable. The knee joint is the largest joint in the body and is a hinge joint which is formed by the condyle of the femur and tibia and the surface which is named the patella. The hinge joint consists of one concave surface and one convex surface where one bone is able to fit into the other bone is has a synovial cavity to reduce friction of the joint during movement. 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.
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.
Describe the structure and development of bone and the factors that influence it. Bone is living tissue that makes up the body's skeleton. The bone consists of blood vessels, nerve cells and living bone cells. Bones are made up of calcium, phosphorus, sodium, and other minerals, as well as the protein collagen. Calcium is needed to make bones hard, which allows them to support your weight.
t 4222-232 (HSC2028) Move and position individuals in accordance with their plan of care Outcome 1. It is important that you understand the related anatomy and physiology. Understanding the basic anatomy and physiology can help reduce the risk of harm to yourself and others when undertaking moving and handling procedures. Muscles work like levers and allow the bones at a joint to work like hinges. Muscles pull and move the bones at particular joints, this makes the joint move and therefore the body move.