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 augment of support and locomotion systems. Animals use their muscular and skeletal systems for support, locomotion, and maintaining their shape. Types of skeletal 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 unkindly 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 come in of longitudinal muscles in the outer social class of the body, and a layer o f rotary muscles in the inner(a) layer of the body. The anemone lowlife one-dimensional or contract its body by contract one or the other set of muscles. Structure and persist 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 sink its exoskeleton (or molt) to form a new one that has room for growth. The hoi polloi and weight of the exoskeleton and associated mechanized prob lems limits the size animals can attain. Spi! ders use a combination of an exoskeleton for fortress and fluid pressure for movement. Exoskeleton of an insect and its similarity to the muscular system. Vertebrates wee-wee developed an internal mineralized (in most cases) endoskeleton make up of bone and/or cartilage. Muscles are on the outside of the endoskeleton. gristle and bone... If you want to take out a full essay, assure it on our website: OrderCustomPaper.com

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