CIRCULATORY SYSTEM
1- Heart. 2- Blood vessels.
THE HEART
WALL OF THE HEART
PURKINJE FIBERS IN MODERATOR BAND (T.S.)
MODERATOR BAND (T.S.)
MODERATOR BAND (L.S.)
ORDINARY CARDIAC MUSCLE
CARDIAC MUSCLE
WALL OF THE HEART A- Endocardium:1- Endothelium 2- Subendothelial C.T. 3- Subendocardial layer B- Myocardium C- Epicardium: 1- Mesothelium 2- C.T. layers
WALL OF BLOOD VESSEL
1- Tunica Intima: a- Endothelium. b- Subendothelial C.T. layer. c- Internal elastic lamina (+ or -) 2- Tunica Media. 3- Tunica adventitia.
BLOOD VESSELS 1- Arteries 2- Blood capillaries. 3- Veins.
ARTERIES (1)Elastic arteries. (2)Muscular arteries (medium-sized arteries). (3)Arterioles.
ELASTIC ARTERY
MUSCULAR ARTERY (MEDIUM-SIZED ARTERY)
MEDIUM-SIZED ARTERY
ARTERIOLE
TERMINAL ARTERIOLE
BLOOD CAPILLARIES
Types: 1- Continuous capillaries 2- Fenestrated capillaries a- with diaphragm b- without diaphragm 3- Sinusoidal capillaries
Capillary wall
BLOOD CAPILLARIES
CONTINUOUS CAPILLARY
FENESTRATED CAPILLARY
VEINS 1- Large veins. 2- Medium-sized veins. 3- Venules.
VENULE
MEDIUM-SIZED ARTERY & VEIN
MEDIUM-SIZED VEIN
VALVE:
VALVE
VENA CAVA
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