bio041920.docx - Sara Atid BIO102 Unit 3 Skeletal System...

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Sara AtidBIO1024/19/2020Unit 3 Skeletal System Assignment1.Classify bones according to their shapes, identify the major types of bone marking, and explain the functional significance of surface features.Long bonesare long, dense bones offering energy, stability, and agility. The bone of the thigh (femur) is a long bone. There's a long bone with a spine with two sides. Some bonesin the fingers are known as long bones, even though they are limited in length.Short bone is one that is cube-like in shape, roughly equivalent in length, width, and thickness. The only small bones of the human body are the carpals of the hands and the tarsals of the ankles. Short bones offer stabilization and protection as well as minimal motion.Flat bones are bones whose primary role is either substantial protection or the provision of large surfaces for muscular connection. These bones are expanded over wide, flat surfaces, such as cranium (skull), ilium (pelvis), sternum and rib cage. The word "flat bone" is a bit of a misnomer since, while the flat bone is typically small, it is also sometimes curved.Irregular boneis one that has no clearly identifiable outline and thus does not suit any other description. Such bones appear to have more complicated forms, such as vertebrae that sustain the spinal cord and shield it from compressive forces. Many facial bones, especially those comprising sinuses, are categorized as irregular bones.The irregular bone is one that has no clearly identifiable outline and thus does not suit any other description. Such bones appear to have more complicated shapes, such as vertebrae that sustain the spinal cord and shield it from compressive forces. Many facial bones, especially those comprising sinuses, are categorized as irregular bones.The sesame boneis a small, circular bone that, like the name implies, is shaped like a sesame seed. Such bones develop in tendons (the tissue sheaths that bind the bones to the muscles) where a great deal of pressure is produced in the joint. Sesame bones support tendons by having them withstand compressive powers. Sesamoid bones differ in amountand location from person to person but are usually located in tendons connected with the thighs, hands, and knees. Patellae are the only sesame bones found in common with each human.

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