Biology 1320 Notes
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This 0 page Class Notes was uploaded by Corina Johnson on Friday January 15, 2016. The Class Notes belongs to 10584 at University of Houston taught by Dr. Lawrence Williams in Spring 2016. Since its upload, it has received 50 views. For similar materials see General Biology in Biology at University of Houston.
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Date Created: 01/15/16
INTRODUCTION TO ANATOMY AND PHYSIOLOGY ORGANIZATION OF MULTICELLULAR ORGANISMS atoms cells tissues organs organ systems organism Tissues a group of similar cells and their intercellular material which perform a common specialized function Organs a group of tissues organized together for a common specialized function Organ syst organs associated for a common function Organism complete assemblage of interactive organ systems TISSUES A Origin endoderm gut and its organs ectodermepidermis and nervous system mesodermdermis muscle skeleton circ kidney repro system B Junctions l sealing to decrease passage 2 adhering mechanical link of plasma membrane 3 communication align protein channels C Types 4 types epithelial connective muscular nervous I EPITHELIAL covering or lining lines body surfaces attached by basement membrane closely packed wlittle intercellular space avascular anol innervated A three shapes squamos cuboidal columnar also transitional B three arrangements simple strati ed pseudostrati ed so can have combinations of these 1 SIMPLE SQUAMOSGood duffusion osmosis filtration lung Bowman39s capsule generally in areas of minimal wear 2 SIMPLE CUBOIDALselective barriers for absorption and secretion kidney tubules outside of ovaries 3 SIMPLE COLUMNARabsorption and glandular cilia and microvilli gut goblet cells upper resp tract cilia central canal of ns uterine tubes and uterus 4 STRATIFIED SQUAMOS surface cells at but full sized deeper waterproof resistant of friction barrier a keratinizedskin b nonkeratinizedmouth vagina moist surfaces 5 STRATIFIED CUBOIDAL rare mostly protective pharynx ducts of glands epiglottis ovary 6 STRATIFIED COLUMNAR rare protect and secret lactiferous ducts of mammary glands male urethra anal area 7 TRANSITIONAL appears like strat squam but roundish cells is exible and strong urinary bladder 8 PSEUDOSTRATIFIED appears strat but not protect and secret upper resp tract cilia and male repro ducts MODIFICATIONS glandular ciliated microvilli ll CONNECTIVE most abundant vascular except cartilage and blood found under much of epithelium serves to protect support and bind other tissues and organs has few cells much intercellular material matrix PROPERTY OF VARIES WITH TYPE OF MATRIX cells are called broblast Cells produce the matrix collagen protein exible but tough elastin strong stretch but snaps back reticular bers branched and interwoven supports and binds A CONNECTIVE TISSUE PROPER l LOOSE collagen and uid soft wrapping protective around nerves blood vessels and muscles 2 DENSE collagen in bundles very tough tendons fascia of dermis surrounds organs 3 ELASTIC bundles of elastin are parallel stretchable skin arteries and lungs 4 ADIPOSE ringlet cells storage of fat associated w loose 5 RETICULAR reticular bers interwoven strength and support of soft organs and binds smooth muscles B CARTILAGE chondrocytes and matrix initial vert skel replaced 1 HYALINE gristle rm and tough end of long bones nose trachea 2 FIBROCARTILAGE rm but softer intervert discs pubic symphasis 3 ELASTIC exible but maintains shape ear C BONE osteocytes vertebrate skeketon D VASCULAR blood and lymph Ill MUSCULAR affects movement characteristics contractibility excitability extensibility elasticity A SKELETAL striated or voluntary strong quick fatigues easily B SMOOTH involuntary strong slow contractions not easily fatigued C CARDIAC involuntary strong quick contractions does not fatigue IV NERVOUS excitableconducts impulses communication neurons of nervous system
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