《组织学与胚胎学 Histology and Embryology》课程PPT教学课件讲稿（双语版）Circulatory system

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