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 extend of support and locomotion systems. Animals use their muscular and skeletal systems for support, locomotion, and maintaining their shape. Types of wa drop-out Systems Movement is a major characteristic of animals. This movement is a result of contraction of muscles. The skeleton helps transmit that movement. Skeletons argon a fluid-filled body cavity, exoskeletons, or internal skeletons. Hydrostatic skeletons consist of fluid-filled closed 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 put up of longitudinal muscles in the outer social class of the body, and a layer of rotary muscles in the cozy layer of the body. The anemone cigaret one-dimensional or contract its body by assure one or the other set of muscles. Structure and share 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 shed its exoskeleton (or molt) to form a new one that has room for growth. The bag and weight of the exoskeleton and associated mechanized problems limits the size animals can attain. Spiders use a comb! ination of an exoskeleton for fortress and fluid pressure for movement. Exoskeleton of an insect and its resemblance to the muscular system. Vertebrates wee-wee developed an internal mineralized (in most cases) endoskeleton be of bone and/or cartilage. Muscles are on the outside of the endoskeleton. cartilage and bone... If you want to take out a full essay, magnitude it on our website: OrderCustomPaper.com

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