Notes in 1. His. CVS

To Subscribe, use this Key


Status Last Update Fields
Published 02/10/2024 Basic Structure of blood vessels[1] {{c1::tunica intima}}→ Epithelium + BM + Connective tissue[2] {{c1::media}}→ Muscle + Elastic tissue[3] {{c1::exte…
Published 02/10/2024 Structure of heart wall:[1] {{c1::Endocardium}}→ Epithelium + BM + Connective tissue [2] {{c1::Myocardium}}→ Muscle + Elastic tissue [3] {{c1::Epica…
Published 02/10/2024 The {{c1::Endocardium}} lines the heart's chambers.Features:→ {{c2::Simple squamous epithelium}} sitting on basement membrane→ Forms the {{c2::va…
Published 02/10/2024 The {{c1::Myocardium}} is the thick middle layer in the heart containing cardiac muscle.Features:→ Lots of {{c2::mitochondria}} & rich {{c2::capil…
Published 02/10/2024 The {{c1::Epicardium}} is the outer layer of heart wallFeatures:→ {{c1::Simple squamous epithelium}} + BM + Connective tissue→ Contains main branches …
Published 02/10/2024 The Epithelium of the Epicardium is the {{c1::visceral}} layer of serous pericardium.
Published 02/10/2024 Arteries vs VeinsArteries:[1] {{c1::Thick muscle wall}} [2] {{c1::Smaller, rounded}}[3] {{c1::Thin adventitia}}Veins:[1] {{c1::Thin muscle wall}} [2] …
Published 02/10/2024 {{c1::Elastic}} arteries are large conducting e.g. aorta, common carotid, pulmonary trunk.
Published 02/10/2024 {{c1::Muscular}} arteries are distributing e.g. coronary, radial, femoral.→ Controls distribution of blood to regions
Published 02/10/2024 {{c1::Arterioles}} are resistant vessels, terminal branches that supply blood to capillary bed.→ 1-2 layers of {{c2::smooth muscle}} in T. MediaDon't …
Published 02/10/2024 the {{c1::Aorta}} is an elastic artery that acts as a pressure reservoir, it gets {{c2::stretched}} during systole, and {{c2::recoils}} during di…
Published 02/10/2024 The recoil and stretchability of the Aorta is due to the presence of layers/laminae of {{c1::elastic fibres}} in {{c2::T. Media}}
Published 02/10/2024 {{c1::Muscular Arteries}}Features:Thick layer of {{c2::smooth muscle cells}}, instead of elastic laminae, in T. MediaElastic fibres found in the {{c2:…
Published 02/10/2024 {{c1::Capillaries}} are the main exchange vessels for nutrients, gases.→ Thin T. Intima & very low BP.Don't have → {{c2::T. media}} & {{c2::T.…
Published 02/10/2024 Types of Capillaries:[1] {{c1::Continuous}}[2] {{c1::Fenestrated}}[3] {{c1::Discontinuous/Sinusoids}}
Published 02/10/2024 A {{c1::Continuous}} capillary can control what is exchanged.• Material must pass through cell, or between cell (junctions can control) • Selective t…
Published 02/10/2024 A {{c1::Fenestrated}} capillary has pores.• Diaphragms filter molecules by molecular weight &/or chargee.g. found in {{c2::endocrine glands}}, {{c…
Published 02/10/2024 A {{c1::Discontinuous}} capillary has gaps between endothelial cells (and basement membrane)• Allows free passage of fluid and cells.e.g. found in {{c…
Published 02/10/2024 {{c1::Sinusoids}} are large diameter discontinuous capillaries.→ Found where large amount of exchange takes place• T. intima contains phagocytic cells…
Published 02/10/2024 {{c1::Arteriovenous (AV) shunts}} are areas where the blood bypasses the capillary beds.e.g. in skin for {{c2::thermoregulation}}
Published 02/10/2024 {{c1::Veins & Venuoles}} have the same structure as arteries, except that they are smaller and thinner.
Published 02/10/2024 {{c1::Vein valves}} are made from folds of tunica intima. 
Published 02/10/2024 The main difference between superficial and deep veins is that:Superficial → {{c1::thick}} walls & {{c1::not surrounded by structures}}Deep → {{c1…
Published 02/10/2024 Deep vein thrombosis occurs in {{c1::deep}} veins rather than superficial veins.
Published 02/10/2024 The Lymphatic system drains tissue fluid lost from {{c1::blood capillaries}} into the systemic venous system→ Clinically important in tumour cell…
Published 02/10/2024 Lymph capillaries vs ArteriesLymph capillaries contain no {{c1::RBCs}}Lymphatics contain {{c1::anchoring filament}} to keep their lumen openBoth are l…
Published 02/10/2024 {{c1::Vasa vasorum (“vessels of the vessels”)}} are found in T. adventitia and they supply the big blood vessels with blood.They also contain Lymphati…
Published 02/10/2024 {{c1::Elastic Arteries}}Features:Thick layer of {{c2::Elastic laminae}} in T. Media→ secreted by the smooth muscles
Status Last Update Fields