Skeletal and muscular system

MUSCULAR AND SKELETAL SYSTEMS The single-celled protozoan ancestors of animals had their weight support by water and were able to move by cilia or another(prenominal) simple organelles. The evolution of large and more complex organisms (animals) necessitated the growing of support and locomotion systems. Animals use their muscular and skeletal systems for support, locomotion, and maintaining their shape. Types of haggard Systems Movement is a major characteristic of animals. This movement is a result of contraction of muscles. The skeleton helps transmit that movement. Skeletons ar a fluid-filled body cavity, exoskeletons, or internal skeletons. Hydrostatic skeletons consist of fluid-filled disagreeable chambers. inbred pressures generated by muscle contractions cause movement as strong as maintain the shape of the animals, such as the sea anem unmatchable and worms. The sea anemone has one clip of longitudinal muscles in the outer story of the body, and a layer of rota ry muscles in the upcountry layer of the body. The anemone drop one-dimensional or contract its body by contract one or the other set of muscles. Structure and run low of a hydrostatic skeleton Exoskeletons are characteristic of the Phylum Arthropoda. Exoskeletons are hard segments that jump the muscles and visceral organs. Muscles for movement attach to the inner surface of the exoskeleton. Exoskeletons fetter the growth of the animal, thus it must dismiss its exoskeleton (or molt) to form a new one that has room for growth. The intensity and weight of the exoskeleton and associated mechanized problems limits the size animals can attain. Spiders use a combination of an exoskeleton for fortress and fluid pressure for movement. Exoskeleton of an insect and its congress to the muscular system. Vertebrates wee-wee developed an internal mineralized (in most cases) endoskeleton self-possessed of bone and/or cartilage. Muscles are on the outside of the endoskeleton. cartil age and bone... ! If you want to take out a full essay, couch it on our website: OrderCustomPaper.com

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