Tissues and membranes
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| Tissue | A group of cells with similar structure an function
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| What are the 4 major groups of tissue | Epithelial, connective, muscle and nerve
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| Epithelial are what? | Coverings an linings
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| Epithelial has no what? | Capillaries, gets nutrients from connective tissue below
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| Squamous | Flat
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| Cuboidal | Cube shaped
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| Columnar | Tall and narrow
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| Simple layers is how many? | 1
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| Stratified is how many layers? | Many layers
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| Simple squamous epithelium | 1 layer, smooth, thin and flat
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| Stratified squamous epithelium | Many layers of mostly flat cells
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| Transitional epithelium | Stratified epithelium with varied shapes of layers
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| Where is transitional epithelium? | Urinary bladder, the cells flatten as bladder streched
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| Unicellular | 1 cell
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| Example of unicellular | Goblet cells, found in gi and respiratory tracts
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| Ciliated epithelium | Columnar cells with cilia
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| Exocrine glands have | Ducts
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| Endocrinr glands are | Ductless
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| Endocrine secretes directly into where? | Into blood and interstitial fluid
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| Endocrine secret what? | Hormones
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| Connective tissue have both _____ & _______ | Matrix & cells
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| Matrix | Structure network or solution of living intercellular material
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| In blood what is the matrix? | Plasma
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| Areolar cells are what? | Fibroblast-- produce protein fibers
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| Areolar fibers are whet 2 kinds | Colagen and elastin
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| Adipose cells are called | Adipocyts
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| Adipostcyts store what? | Fat
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| What are the different types of adipose? | Brown and White
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| Explain the two different adipose | Brown is less abundant in adults and white is more abundent and is used to store energy when food intake is less
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| Brown adipose? | Is more abundant in children because they do not have the shivering mechanism that adults have
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| Adipose is exocrine or endocrine? | it is and endocrine because it produces at least one hormone.
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| Fibrous connective tissue consists of what? | Parallel collagen fibers with fewer fibroblasts scattered among them. This parallel is arranged to give greater strength than flexiablity
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| Where is fibrous connective tissue found? | outer walls of arteries, tendons
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| Fibrous tissue has good or bad blood supply? | It has a poor blood supply which results in slow healing
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| Elastic Connective Tissue is made of primarily what fibers? | Elastin
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| What is one function of the elastic connective tissue? | stretching to help with contraction ex; arteries of the heart; it contracts and pumps blood, then they recoil when the heart relaxes
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| Which connective tissue is important to maintain normal blood pressure? | Elastic connective tissue
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| what is bones prefix? | Osteo
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| Bone cells are called what? | Osteocytes
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| The matrix of the bone is what? | calcium salts, and collagen. It makes it strong and not flexible
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| Bones have good or bad blood supply? | Good which allows quick healing process
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| The matrix of cartilage is what? | Carbohydrate and protein
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| Cartilage contains more ______ which makes it resistant | water
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| Cartilage has a good or bad blood supply? | A poor blood supply which makes the healing process slower.
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| What are cartilage cells called? | chondrocytes
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| Skeletal muscle is ______ and ______ | striated and voluntary
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| Skeletal muscles have single or many nuclei and are cylindrical or tapered ends? | many nuclei and cylindrical
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| Smooth muscles are ______and_____ | involuntary and visceral
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| Smooth muscle is single or many nucle and cylindrical or tapered ends? | single and tapered ends
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| Cardiac muscles serve what purpose? | They re branched have one nucleus and have faint striations. They have interlocking folds and permit the electrical impulses of muscle contraction to pass from cell to cell.
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| The contraction of myocardium create what and keep what circulation? | blood pressure and blood circulation
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| the heart muscle is called what? | Myocardium
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| Nerve tissue consist of what? | neurons
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| what are the two divisions of the nervous system? | CNS and PNS
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| The cell body consists of what? | nucleus, axon, dendrites
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| what is the place where neurons meet where theyre is a small space? | synapses
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| Impulse transmition depends on what chemical? | neurotransmitters
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| Nerve tissue makes up what? | brain spinal cord and peripheral nerves
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| Serous membranes | sheets of simple squamous epithelium that line closed body cavities and cover the organs in these cavities
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| Pleural membranes are the serous membrane of what cavity? | Thoracic
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| Visceral cavity covers what? | lungs
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| Pleural membranes secrete what? | serous fluid which prevents friction between the the cavity and the lungs
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| pericardium | lines fibrous pericardium and the visceral peridcardium
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| mucous membranes line what? | body tracts that are open to the enviroment (GI tract, respiratory urinary and reproductive)
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