Heart Anatomy Notes - PDF
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Uploaded by OpulentNeptunium1727
Quinnipiac University
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Summary
This PDF document contains detailed notes on heart anatomy, covering the pericardium, chambers, valves, and coronary circulation. The notes are suitable for students studying biology and looking for a comprehensive guide to the cardiovascular system.
Full Transcript
Its withinpericardialsac cardium Membranesacsurrounding theheart Functions Holdsthe heartinitsposition Preventsheartfromoverfilling Decreasesfriction withmovement Twolayers FibrousPericardium layerrestsonandattachestothe...
Its withinpericardialsac cardium Membranesacsurrounding theheart Functions Holdsthe heartinitsposition Preventsheartfromoverfilling Decreasesfriction withmovement Twolayers FibrousPericardium layerrestsonandattachestothediaphragm Outer inelasticirregular Tough tissue connective Preventsoverstretchingfilling Serouspericardium Parietal Attachedtoinsideoffibrous Viscerallayerofheartwallstickstosurfaceofheart Makeserousfluid Betweenparietalandviscerallayerofserouspericardiumthere's asmallamountof serousFluid lubricates the heartcalledpericardialfluid Decreasesfriction Pericardialeffusion filledwithfluid Pericardiumbecomes orblood ersof Heart Epicardium Thinouterlayer viscerallayerofthe serouspericardium Myocardium Middlelayercomposedofmuscle makes up95 ortheheart striated likeskeletalmusclebutinvoluntary Endocardium layerepithelialtissuewithbasementmembrane Inner liningof chambersofthe the andthevalues heart continuous withtheendotheliallinningofthegreatvessels ambers RightAtrium BloodinfromSVC IVC deoxygenatedfrombodyandcoronarysinus deoxygenatedbloodformmyocardium Interior isroughduetomuscularridgescalledpectinatemuscles ovaldepressioninfetalcalledfossaOvale Outflowsbloodthroughtricuspidvalue Rightventricle wallsare roughduetotrabecularcame bloodthroughpulmonarysemilunarvalueintopulmonarytrunk outflows Blood lungsviathe travelsto pulmonaryarteries leftAtrium Reieves blood oxygenated via4pulmonaryveins wallsaresmooth outflowsbloodthroughmitral valuetotheleftventricle leftventricle thick very wallshavetrabeculacarne outflowsbloodtoAorta noventricular valves tricuspidand valves Bicuspid Allowblood flowfromAtriato ventricles valuesclosed Papillarymusclescontracttokeep MilunarValues Pulmonicandaortic valves flowtomovefromventricles Allowblood Pulmonic tolungs Aortic tomyocardium Luzshapedcusps 3each ronaryCirculation Bringsnutritiondirectlytomyocardium Heartisunabletousebloodthatis inatrial ventricles Found onsurfaceofheartin Suki RightCoronaryArtery SuppliesRA RV orLV ventricularseptumSAnode60 LeftCoronaryArtery SuppliesLA or.LVSAnode40 Cardian veins Coronarysinus Transportsbloodthathasbeenusedbythemyocardiumbackto RA
