Capillaries and Circulation

Capillaries

• only Tunia intima

Types of Nutrition exchange via Capillaries

• Transcellular via exocytosis and endocytosis
• Paracellular via endothelium gaps

Types of Capillaries

graph TD
    X{Types of Capillaries } ==>|closely fused tight junction| X1[Continues Capillary];
    X1 ==>|highly controlled regions| X1a[BBB,Testies,Lungs];
    X ==>|holes in cytoplasm of Endothelium| X2[Fenestrates Capillary];
    X2==>|pasage of molecules| X2a[kidney, intestines];
    X ==>|large empty space in endothelium and CT| X3[Sinusoiy Capillary];
    X3 ==>|al:octicons-arrow-down-24: cells to pass through| X3a[bone marrow,spleen];

Types of Microcirculation

graph LR 
    x{types of Microcirculation} ==> x1(Arteriole-Capillary-Venule);
    x ==> x2(Arteriole-Capillary-Atertiole);
    x2 ==>x2a[@ Hypothalamus- to transport water soluble hormones to pitutary
    faster];
    x ==>x3(Venules-Capillaries-Venules);
    x3 ==>x3a[@ Liver];
    x ==>x4(Arterio-Venous fistula);