Blood vessels have three layers. Arteries are located deep within the body.
There are three types of blood vessel (conduits) theses are veins, arteries and capillaries, they are made up of three layers the intima, the media , and the adventitia. The blood vessels are generally located deep in the body structure for protection, Veins on the other hand can be found deep and at cutaneous levels. The capillaries can be found in all the tissues of the body, It should be understood that the exchange of materials between the blood and cells takes place in the capillary beds , There are also some special situations that occur in the blood vascular system these include, nutrient versus functional blood supply, collateral circulation , end arteries and portal veins.
I understand that veins can collapse, what is the cause ?
• In general, there are three types of blood vessels--arteries, veins, and capillaries.
• Blood vessels are generally composed of three layers – the intima, the media and the adventitia.
• For protection, arteries tend to be located deep within the structures of the body.
• Veins can be located at both deep and cutaneous levels.
• The capillaries are located throughout all tissues of the body.
• The exchange of materials between the blood and the cells of the body takes place in the capillary beds.
• Some special situations which arise in the blood vascular system include:
o nutrient versus functional blood supply
o collateral circulation
o end arteries
o portal veins
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