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anatomy test 1

Microvilli projections that increase a cell’s surface area
Fat Droplet loose connective tissue composed of adipose
Secretory vessicle membrane bound organelle which contains molecules ready for secretion across the plasma membrane of the cell
Centrosome the site from which the mitotic spindle is constructed
Centrioles structures in the cytoplasm from which the spindle apparatus is formed
Ribosomes small organelles responsible for protein production
Nucleus houses the cell’s genetic material (DNA)
Nucleolus where ribosomal RNA is transcribed
Nuclear envelope double membrane enclosing the nucleus
Mitochondrion organelle where cellular respiration occurs and most ATP is made
microfilament long fibers that functions in movement and support of the cell
Golgi vesicle a membrane-bounded vessicle in the Golgi complex acting as a lysosome or a secretory vessicle in exocytosis
Golgi complex modifies, packages, newly synthesized proteins and synthesizes carbohydrates
Lysosome function is to destroy worn-out/damaged organelles, get rid of waste materials, and protect the cell from foreign invaders
Microtubules move vessicles, granules, organelles and chromosomes via special attachment proteins
Endoplasmic Reticulum network of membranous sacs and tubes, active in membrane synthesis and other synthetic and metabolic processes. Has a rough (ribsome studded and smooth)
Plasma Membrane membrane enclosing the cell
Basement membrane binds the epithelium to underlying connective tissue
Mitosis a form of cell division in which a cell divides once and produces two genetically identical daughter cells
Prophase chromosomes condense and nuclear envelope breaks down. Spindle fibers grow from centrioles. Centrioles migrate to opposite poles of cells
Metaphase chromosomes lie along the midline of the cell. Some spindle fibers attach to kinetochores. Fibers of aster attach to plasma membrane
Anaphase Centromeres divide into two. Spindle fibers pull sister chromatids to opposite poles of cell. Each pole now has a set of identical genes.
Telophase Chromosomes gather at each pole of cell. Chromatin decondenses. New nuclear envelope appears at each pole. New nucleoli appear in each nuclues. Mitotic spindle vanishes.
Hair protect our bodies from the elements, regulate hear, and sensory item.
Sweat pores to help control body temperature and cool body down
Epidermis protection
Dermis contains blood vessels, nerves, oil and sweat glands
Dermal papilla fingerlike structure for increased surface area in the exchange of oxygen, nutrients and waste between the dermis and the epidermis
Tactile corpuscle made out of nerve endings functioning as a touch receptor
Blood capillaries pass blood from arteries to veins
Hair folicle a sac from which a hair grows and into which the sebacous glands open
Sebaceous gland secrete an oily substance (sebum) to be used as a barrier against pathogens
Apocrine sweat gland responsible for sweat and body odor
Hair bulb portion of the follicle that produces hair
Hypodermis fasten skin to underlying surface, provide thermal insulation, and absorb shock from impacts to the skin
Merocrine sweat gland helps regulate body’s temperature
Sensory nerve fibers receive sensory stimuli
Motor nerve fibers a neuron conducting impulses outwards from the brain or spinal cord
Piloerector muscle makes hair stand
Stratum basale (FIRST LAYER)consists of a layer of cuboidal to low collumnar cells and keratinocytes resting on the basement membrane
Stratum spinosum (SECOND LAYER) thickest stratum, consists of layers of keratinocytes
Stratum granulosum (THIRD LAYER) consists of 3-5 layers of flat keratinocytes.
Stratum lucidum (FOURTH LAYER) thin translucent zone seen only in thick skin, kerotinocytes are densely packed
Stratum coreneum (FIFTH LAYER)consists of up to 30 layers of dead scaly keratinized cells forming a durable surface layer
Epithelial Tissue tissues composed of layers of closely spaced cells that cover organ surfaces or form glands; serves for protection, secretion, and absoprtion
Connnective Tissue tissue with usually more matrix than cell volume;specialized to support, bind, and protect organs
Nervous Tissue tissue containing excitable cells specialized for rapid tissue transmission of coded information to other cells
Muscular Tissue tissue composed of elongated, excitable cells specialized for contraction
Simple Gland have a single unbranched duct
Compound Gland have a branched duct
Tubular Gland duct and secretory portion are of uniform diameter
Acinar Gland secretory cells form a dialated sac (acinus)
Tubuloacinar gland a gland which both the acini and tubules secrete a product
Created by: kawaiixhime



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