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56 Cards in this Set
- Front
- Back
Organization of systems (Start from cell)
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Cell --> Tissues --> Organs ---> Organ System --> Organisms
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Cells with a common structure and functions
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Tissues
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Four types of tissue
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1) Epithelial
2) Connective 3) Muscle 4) Nerve |
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Tightly packed cells in sheets that covers the outside of the body and line organs and cavities
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Epithelial tissue
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What is the function of Epithelial tissue?
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Barrier against mechanical injury, involving microbes and fluid loss
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Five classes of Epithelial tissue
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Simple, stratified, cuboidal, squamous, columnar
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One cell layer
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Simple
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Several cell layers
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Stratified
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Shaped like a cube
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Cuboidal
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Shaped like a pancake; flat
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Squamous
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Shaped like a column/post
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Columnar
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Mucous membrane is an example of what tissue?
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Epithelial
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What do mucous membranes do?
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They absorb or secrete chemical solutions
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What is the function of connective tissue?
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To bind and support other tissue
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Structure of Connective tissue
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Sparse numbers of cells within an extracellular matrix
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5 examples of connective tissue
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Blood, bone, tendons, collagen, elastin
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6 types of connective tissue
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Loose connective, adipose, fibrous connective, cartilage, bone, blood
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Three types of fibers in loose connective tissue
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Collagenous, elastic, and reticular fibers
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Two types of cells in loose connective tissue
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Fibroblasts, macrophages
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Secrete the protein (In loose connective tissue)
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Fibroblasts
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Eat bacteria and dead cells (In loose connective tissue)
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Macrophages
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Specialized loose connective tissue that insulates and stores fat in its cells
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Adipose tissue
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Dense, maximum tensile strength. Includes tendons and ligaments
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Fibrous connective tissue
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Muscles to bones
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Tendons
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Bone to bone
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Ligaments
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Strong yet flexible, examples include: Nose, ears, trachea, vertebra, discs
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Cartilage
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Collagenous fiber and chondrocytes are cells that secrete _____ ______ (In cartilage connective tissue)
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Chondroitin sulfate
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Mineralized connective tissue
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Bone
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Bone connective tissue include both _____ and _____
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Osteoblasts, osteocytes
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Bone forming cells (In bone connective tissue)
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Osteoblasts
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Mature bone cells (In bone connective tissue)
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Osteocytes
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In bone connective tissue, collagen and calcium phosphate ---> _____
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Hydroxyapatite
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Repeating units making up the bone (In bone connective tissue)
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Haversian systems
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Tissue with a matrix of plasma
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Blood connective tissue
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3 types of blood cells
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Plasma, Erythrocytes, Leukocytes
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Water, salts, proteins (type of blood cell)
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Plasma
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Red blood cells (type of blood cell)
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Erythrocytes
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White blood cell (type of blood cell)
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Leukocytes
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Pieces of blood cells, aids clotting
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Platelets
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Two contractile proteins in muscle tissue
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Actin, myosin
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Most abundant tissue in animals
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Muscle tissue
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What accounts for much of the energy consuming cellular work in an animal?
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Muscle contractions
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Three types of muscle tissue
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Skeletal, cardiac, smooth/visceral
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Striated, voluntary (type of muscle tissue)
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Skeletal
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Striated, involuntary (type of muscle tissue)
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Cardiac
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Lines the walls of internal organs, involuntary (type of muscle tissue)
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Smooth/visceral
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Two examples of smooth/visceral tissue
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Digestive system and blood vessels
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Nerve tissue cells are called this
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Neurons
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What is the function of nerve tissue
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Senses and transmits nerve impulses
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What is nerve tissue made of?
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Neurons and glial cells
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What are the 3 parts of a neuron?
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Cell body, dendrites, axon
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Nucleus and cytoplasm (part of neuron)
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Cell body
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Short appendages from cell body, receive impulse from other neurons (part of neuron)
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Dendrites
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One, long extension from cell body, carries impulses away (part of neuron)
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Axon
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Connective tissue to suspend organs in body cavities (thoracic and abdominal cavities) separated by diaphragm
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Mesenteries
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Fills the spaces between cells and exchanges nutrients and wastes with blood carried in the capillaries
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Interstitial fluid
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