Minggu, 16 Desember 2012

The types of blood vessels:

The types of blood vessels:

    
Artery: rwarna yellowish / bluish marked with denyutanya. Always carry blood rich in O ². small arteries called arterioles
    
Capillary: the outpouring of blood arterioles. Capillary wall serves as semiperbiamel membrane that can be penetrated by water, crystalloid and some plasma proteins
    
Venules: collect blood from the capillary matting and other venules join to form veins
    
Veins: dark blue, not stronger throbbing. Veins more and more diverse than arteries. Larger cross-section and has a valve. This valve prevents the backflow of blood into the veins in the head and members of the abdominal cavity when the pressure increases.


CHANNEL SPLEEN

    
Lymph duct system is closely linked to the blood circulatory system. Most of the fluid leaving the circulation returned through lymph channels that permeate the tissue spaces.
    
Lymph system composed the following components:

1. Lymph capillaries
Ducts that have a smooth layer of the cell wall. Lymph capillaries branching and closed at one end.
2. Lymph channels
Similar to the small veins, but have more valves. The smallest lymph vessels (lymphatic capillaries) is composed of a layer of endothelium in any organ. Some kind of special lymph vessels called Laktea.
3. Lacteals

Tidak ada komentar:

Posting Komentar