The muscoskeletal system
The elastic fibers allow ligaments to have some stretchability.
The cranium is formed from eight bones connected by sutures. The state-of-the-art prostheses have limited durability, wearing out quickly, particularly in young or active individuals.
Musculoskeletal system pdf
To allow motion, different bones are connected by articulating joints. The hyaline cartilage covers bony surfaces; fibrocartilage pads in the joint prevent contact between bones during movement. It functions as protection for the vital organs of the chest, such as the heart and lungs. Axial skeleton: Image depicting the human skeleton with the axial skeleton. Skeletal muscles also: Maintain posture and body position; Support soft tissues; Guard entrances and exits to the digestive and urinary tracts; and, Maintain body temperature. Injuries to the joints can produce tears in the fibrocartilage pads, and the tears do not heal. A ligament is a dense, white band of fibrous elastic tissue. The appendicular skeleton comprises bones and is involved in locomotion and manipulation of objects in the environment. Other elements of the musculoskeletal system Joints: These are where two bones interconnect. The three regions of the upper limb are: arm humerus , forearm ulna medially and radius laterally , and the hand.
Tendons can stretch substantially, allowing them to function as springs during locomotion, thereby saving energy. The thighs and legs have 8 bones: The left and right femur thigh, 2patella knee, 2tibia 2 and fibula leg, 2.
Musculoskeletal system quizlet
Smooth muscles play a role in certain bodily functions that are not under a person's control. Like skeletal muscle, cardiac muscle has a regular pattern of fibers that also appear as stripes under a microscope. Key Terms red marrow: Red marrow or medulla ossium rubra, consists mainly of hematopoietic tissue, and gives rise to red blood cells RBCs , platelets and most white blood cells WBCs. However, cardiac muscle contracts and relaxes rhythmically without a person's awareness. Cartilage - The ends of the bone that form a joint are covered with cartilage. While there are joints that do not move e. Skeletal muscles are attached to bones and arranged in opposing groups around joints. Its primary functions include supporting the body, allowing motion, and protecting vital organs. Ossicle The ossicles also called auditory ossicles consist of three bones malleus, incus, and stapes that are the smallest in the body. Pectoral Girdle The bones of the pectoral girdle consist of two bones scapula and clavicle and anchor the upper limb to the thoracic cage of the axial skeleton. Bursae - Bursae are small, fluid-filled sacs that serve as a cushion and low-friction gliding surface between adjacent moving body parts like bone, muscles, tendons, and skin.
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It provides form, support, stability, and movement to the body.
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