Suture joints and Gomphosis joints are synarthroses. c. Syndesmoses: there is a greater distance between the bones and more fibrous connective tissue. The tissue is either arranged as a bundle (ligament) or as a sheet (interosseus membrane). Example tibia/fibula, because it permits slight movement, a syndesmosis is classified functionally as an amphiarthrosis. Functionally, sutures are classified as synarthroses because they are immovable; syndesmoses are classified as amphiarthroses because they are slightly movable.
Synovial joints are made up of bones that come together to formulate the joint, the ligaments attach bone to bone and allow for the joint movement to be stable and in the correct direction. 3. What are the functions of the following? Joint Capsule: movements capable by that joint, as well as active stability. Synovial Membrane: protects and lubricates the joint, enabling the joint to move easily.
B) the conduction of neural stimulation to the muscle fiber. C) muscle contraction. D) muscle relaxation. E) the striped appearance of skeletal muscle. 5) The advantage of having many nuclei in a skeletal muscle fiber is A) the ability to contract.
This illustrates how the flat plates form together to protect the brain. (http://images.tutorvista.com/content/locomotion-animals/human-skull-structure.jpeg) In addition to protecting the organs of the body, the skeleton also supports the rest of the body, and aids posture. The muscles, and many of the softer, delicate organs are kept in place by the skeleton. Ligaments and
Capsular ligaments are a part of the articular capsule that surrounds synovial joints. They act up as mechanical reinforcements, creating stability when the ligaments join together. Articular cartilage- Articular cartilage is a white smooth tissue that covers the ends of bones in the joints. It enables bones of a joint to easily glide over one another, establishing easy movement. Joints between the bones, knee, elbow, and rib cage are some areas in the body where these cartilages can be found.
also called voluntary muscles, are the muscles that attach to bones that we consciously move. 50 Striations-alternating light and dark bands recognizable on skeletal muscles 51 Muscle Sense-the brain's ability to sense where the muscles are and what they are performing during movement 52 Stretch Receptors-work in conjunction with the sensory receptors, also referred to as proprioceptors. Senses the changes in the length of a muscle as it stretches. 53 Origin-end of the skeletal muscle attached to the immovable part of the bone 54 Insertion-end of the muscle attached to the movable part of the bone 55 Prime Mover-a muscle that does most of the work during movement 56 Synergist-muscles that contract and assist the prime mover 57 Antagonists-muscles that resist the prime mover's action and work to cause action in the opposite direction 58 Tendons-composed of parallel fibers kept together by a connective tissue sheath 59 Myosin-thick filament that makes up approximately one half of the proteins that occur in muscle
The human skeleton Is made up of 206 bones. The functions of the skeleton are to provide support, give our bodies shape, and provide protection to other systems and organs of the body, to provide attachments for muscles, to produce movement Joints A joint is the point where two or more bones meet. There are three main types of joints; Fibrous (immoveable), Cartilagenous (partially moveable) and the Synovial (freely moveable) joint. Fibrous joints Fibrous (synarthrodial): This type of joint is held together by only a ligament. Examples are where the teeth are held to their bony sockets and at both the radioulnar and tibiofibular joints.
By working together with muscles, the strong, lightweight bones enable movement as well. Also, they protect internal organs – the skull protects the brain; the ribs protect the lungs and heart. In addition, bones produce blood cells and other substances that the body needs. Finally, they store materials like calcium and phosphorus. These make the bones strong, and when the body needs them, the bones release small amounts into the blood.
KEYWORDS: Skeletal system, Arthritis, muscles, activities of daily living. The skeletal system is one of the most unique organ systems in the human body as it compliments other organ system such as the muscles. The skeletal system consists of various sizes and shapes that add characteristics for support and mobility of the body. Our bones provide protection to our vital organs such as the heart and the brain. The skeletal system is the main foundation of the human body, without this, we cannot function as human beings.
A unique joint, the shoulder has only one bony attachment to the rest of the skeleton in the clavicle - collarbone - where it attaches to the scapula. This unique anatomy allows a wide range of motion for the shoulder joint. · HINGE JOINTS, e.g. the knee or elbow joint, can straighten or bend in the same way as a door hinge opens or closes. · Knee joint - range of motion is typically measured using a tool called a goniometer.