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23 Cards in this Set
- Front
- Back
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actin |
filament that is pulled by myosin filaments to cause muscle contraction
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appendicular skeleton
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part of the skeletal system that allows for most of the body's movements; includes bones of the arms, shoulders, legs, and pelvis
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axial skeleton
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part of the skeletal system that supports the body's weight and protects the body's internal tissues; includes the bones of the skull, spinal column, and rib cage
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calcification
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process that hardens bones by adding calcium phosphate and collagen
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cardiac muscle
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muscle tissue that is only found in the heart
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cartilage
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tough, elastic, and fibrous connective tissue found between bones
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dermis
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second layer of skin that includes structural proteins, blood vessels, glands, and hair follicles
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epidermis
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outermost layer of skin that consists mainly of dead skin cells, and provides a barrier to pathogens
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hair follicle
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pit in the dermis of the skin that contains cells that produce hair
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integumentary system
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body system that separates the other body systems from the external environment; includes the skin and the tissues found within it
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joint
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location in the body where two bones meet
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keratin
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protein that binds to lipids inside a skin cell, forming a waterproof layer within the skin
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ligament
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long, flexible band of connective tissue that joins two bones across a joint
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muscle fiber
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cell of the muscular system that shortens when it is stimulated by the nervous system
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muscular system
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body system that moves bones within and substances throughout the body
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myofibril
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long strand of protein within a muscle fiber
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myosin
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filament that pulls actin filaments to cause muscle contraction
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sarcomere
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section of a muscle fiber that contains all of the filaments necessary to cause muscle contraction
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skeletal muscle
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muscle tissue that is attached to the skeletal system and, when contracted, moves bones
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skeletal system
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body system that includes bones and the connective tissues that hold the bones together in the body
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smooth muscle
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muscle tissue that moves substances, such as food and blood, through organs and tissues, such as the digestive system organs and blood vessels
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tendon
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band of connective tissue that joins a muscle to the bone that it moves
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vertebra
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bone that makes up the spinal column
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