Artery

 

  
Artery and vein explanatory video

 

The major structure which carries blood from the heart to the tissues. It is divided into two major types

Elastic arteries which are found in the major vessels and they contain elastic fibers in their middle layer -tunica media- e.g. aorta

Muscular arteries which are found in the medium and small vessels. They contain mainly muscle fibers in their middle layer.

The most internal structure is the endothelium. This is followed by basal lamina. Its internal elastic lamina is prominent because of less elastic tissue in tunica media. Its media has myocytes which are not striated.

The fibers of tunica adventitia are disposed longitudinally and they are collagenous and elastic fibers. These are the following layers in muscular artery although there are three main layers - tunicae intima, media and adventitia.

  • Endothelium

  • Basal lamina

  • Subendothelial connective tissue

  • Internal elastic lamina

  • Tunica media

  • External elastic lamina

  • Tunica adventitia

This is from internal to external layer

Cells

Endothelial cell

 

 

 

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histophysiology  histopharmacology  histochemistry  histopathology

  
Creator: Oluwole Ogunranti

 

Blood vessel microscope      Double click for full screen     


Artery and vein explanatory video

 


Blood vessels  physiology

 

 

   

 

 

 

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