Circulatory sxstem
Circulatory system
General outline art Arteries Blood vascular system Capillaries veins Lymphatic capillaries Lymphatic vascular system Lymphatic vessel Lymphatic ducts
General outline Blood vascular system Heart Arteries Capillaries veins Lymphatic vascular system Lymphatic capillaries Lymphatic vessel Lymphatic ducts
Capillaries a single layer of erdothelial cells LM basement membrane A few connective tissue(pericytes) Continuous capillary EM Fenestrated capillary Sinusoid
Capillaries ▪ LM A single layer of endothelial cells basement membrane A few connective tissue (pericytes) ▪ EM Continuous capillary Fenestrated capillary Sinusoid
Capillaries Continuous c 2的 828s Fenestrated C Sinusoid
Capillaries Continuous C. Fenestrated C. Sinusoid
Continuous capillary. distributed in muscle tissue, brain, lung and connective tissue. etc endothelial cell: large number of pinocytotic vesicles, no pores, exist cell Junctions between the endothelia basement membrane: integrity
Continuous capillary: ▪ distributed in muscle tissue, brain, lung and connective tissue, etc. ▪ endothelial cell: large number of pinocytotic vesicles, no pores, exist cell junctions between the endothelia ▪ basement membrane: integrity
CAPILLARIES Continuous Fenestrated Pericyte Pericyte Pinocytotic Fenestrations vesicles Cell Junction Pericyte Basal lamina
Continuous capillary
Continuous capillary
Fenestrated capillary: distributed in the kidney lomerulus,mucosa of gastrointestine, some endocrine glands endothelial cells: present abundant pores, have or havent diaphragm on them a basement membrane: continuous
Fenestrated capillary: ▪ distributed in the kidney glomerulus, mucosa of gastrointestine, some endocrine glands ▪ endothelial cells: present abundant pores, have or haven’t diaphragm on them ▪ basement membrane: continuous
Fenestrated capilary Co
Fenestrated capillary
sinusoid: distributed in liver, spleen, and some endocrine glands a greatly enlarged diameter endothelial cell: intercellular clefts are large between cells, many pores without diaphragm absence of a continuous basement membrane
Sinusoid: ▪ distributed in liver, spleen, and some endocrine glands ▪ a greatly enlarged diameter ▪ endothelial cell: intercellular clefts are large between cells, many pores without diaphragm ▪ absence of a continuous basement membrane