nursing
Artery
1. Artery
Function to transport high blood pressure to the tissues. Because the arterial system that has a strong wall, and the blood flowing quickly to the network. Aortic and arterial walls contain relatively more elastic tissue. The wall was stretched time systole and recoil during diastole entered.
2. Arterioles
Is most tip of the branches of the artery system, functions as a valve controller for a set of blood flowing into the capillary. Arterioles also have a strong wall. Arterioles to constrict / or dilatation of a complete narrowing / widening up to several times its normal size, so it can regulate blood flow to the capillary. The walls of arterioles contain less elastic tissue and more smooth muscle. These muscles are supplied by nerve fibers whose function kolenergik vasodilation. Arterioles is a key determinant of resistance / resistance of blood flow, small changes in diameter cause large changes of peripheral resistance.
Three. Capillary
Serves as a place of exchange of fluids and nutrients between blood and interstitial space. For this role comes the capillary walls are very thin and permeable to substances bermolekul smooth.
Venul and venous
1. Venul
Venul wall is only slightly thicker daipada capillary walls. Venul accommodate functions of capillary blood and gradually merged into a larger vein.
2. Vena
Functions as a transport route from the blood back to the heart tissue. Because the pressure in the venous system is low (0-5 mmHg), the vein wall was thin but muscular, allowing the vein to contract so that has the ability to store or hold the body needs blood.
These blood vessels form a circulatory loop, which has different wall thicknesses, large vessel diameter and area of the cavity.
Circle of circulation can be divided into two major parts: the systemic circulation and pulmonary circulation.
Systemic circulation
1. Blood stream every related organ
2. Meet the needs of the significantly different organs.
Three. Pressure requires a great beginning.
4. Many experienced prisoners.
5. Hydrostatic column length.
Pulmonary circulation
1. Only keparu-pulmonary blood flow.
2. They serve only to the lungs.
Three. Low pressures have a beginning.
4. Only a few experienced prisoners.
5. Shorter hydrostatic column.
There is a small circulation system of Coronary Circulation.
The efficiency of the heart as a pump depends on adequate nutrition and oxygenation to the heart muscle. Coronary circulation covers the entire surface of the heart and carry oxygen to the myocardium through the branches of a small intra-myocardial small.
Coronary blood flow increased in:
1. Activities.
2. Heart rate increases.
3. Sympathetic nervous system stimulation.
by: nursing
Print this pageArtery
1. Artery
Function to transport high blood pressure to the tissues. Because the arterial system that has a strong wall, and the blood flowing quickly to the network. Aortic and arterial walls contain relatively more elastic tissue. The wall was stretched time systole and recoil during diastole entered.
2. Arterioles
Is most tip of the branches of the artery system, functions as a valve controller for a set of blood flowing into the capillary. Arterioles also have a strong wall. Arterioles to constrict / or dilatation of a complete narrowing / widening up to several times its normal size, so it can regulate blood flow to the capillary. The walls of arterioles contain less elastic tissue and more smooth muscle. These muscles are supplied by nerve fibers whose function kolenergik vasodilation. Arterioles is a key determinant of resistance / resistance of blood flow, small changes in diameter cause large changes of peripheral resistance.
Three. Capillary
Serves as a place of exchange of fluids and nutrients between blood and interstitial space. For this role comes the capillary walls are very thin and permeable to substances bermolekul smooth.
Venul and venous
1. Venul
Venul wall is only slightly thicker daipada capillary walls. Venul accommodate functions of capillary blood and gradually merged into a larger vein.
2. Vena
Functions as a transport route from the blood back to the heart tissue. Because the pressure in the venous system is low (0-5 mmHg), the vein wall was thin but muscular, allowing the vein to contract so that has the ability to store or hold the body needs blood.
These blood vessels form a circulatory loop, which has different wall thicknesses, large vessel diameter and area of the cavity.
Circle of circulation can be divided into two major parts: the systemic circulation and pulmonary circulation.
Systemic circulation
1. Blood stream every related organ
2. Meet the needs of the significantly different organs.
Three. Pressure requires a great beginning.
4. Many experienced prisoners.
5. Hydrostatic column length.
Pulmonary circulation
1. Only keparu-pulmonary blood flow.
2. They serve only to the lungs.
Three. Low pressures have a beginning.
4. Only a few experienced prisoners.
5. Shorter hydrostatic column.
There is a small circulation system of Coronary Circulation.
The efficiency of the heart as a pump depends on adequate nutrition and oxygenation to the heart muscle. Coronary circulation covers the entire surface of the heart and carry oxygen to the myocardium through the branches of a small intra-myocardial small.
Coronary blood flow increased in:
1. Activities.
2. Heart rate increases.
3. Sympathetic nervous system stimulation.
by: nursing