- Definition of the cardiovascular system
The cardiovascular system is the heart blood of sirkulsi organs, components and function of blood vessels to provide blood oxygen supply and nutrients to body tissues and the necessary drainage system in the metabolic processes body. cardiovascular requires a significant amount of a variety of mechanisms, regulation of body functions respond activity by which to increase the activity of a blood supply, network activity can be achieved. In severe cases, it showed that blood flow, the most vital organs such as the heart system and brain function and circulation memlihara contains itself.
As a center for cardiovascular and cardiovascular heart
- The development of the cardiovascular system
cardiovascular system began at the age of 3 weeks of pregnancy work. In the cardiovascular system, they are the largest blood vessel angioblasts call. Angioblasts are the result of:
- Mesoderm: splanknikus and Chorion
- Merengkim: yellow bag and umbilical cord
- It can also cause blood vessels and blood
In the first stage of development of the third week, the heart tube begins to develop in the splanchnic ie between pericardial egg and the CIS and the secondary valve Downloaded from www.vandenborre.be Set (cardiogenic area) from the ceiling. led endothelial Heart couple covered longitudinal channels. The tubes being formed primitive heart. It binds tubular heart blood vessels of the embryo, the connecting rod, and bag Karian yolk of a primary cardiovascular system. In the fetus, the blood flows through the placenta.
- The anatomy and cardiovascular physiology
A pear shape Heart / pointed like an inverted pyramid with the top (upper back: C-II) are the foundation and the base (ICS anterior – V) at the top. At the base of the heart are the aorta, lungs, upper and lower body, veins and veins. The protected as a center of the cardiovascular system, and more by costae left chest (thorax) is exactly mediastinum heart. For heartbeat, we can examine the papilla within less than 2 fingers later. adult weight is about 250,350 grams.Heart relationship with the surrounding tools, namely:
- As part of the front wall of the sternum and rib cartilage as high kostalis III I.
- especially the lungs and family mediastilais facies.
- IV are connected to high breast and cervical cancer with lung dekstra II brongkus aorta and the left bronchus.
- Rear Tools posterior mediastinum, esophagus, desendes aorta, azygos vein of the thoracic spine.
- The lower part is connected to the membrane.
Heart is ready, not easy to move. The main representative of the heart is the heart lung side of the membrane support from below, blood vessels inside and outside of the heart to the heart of the deletion is not easily transmitted. Factors influencing the heart of the position are:
- Age: In the elderly, the tools of the chest cavity, including the heart and not down are down
- forms a cavity in the chest: the conversion of persistent tora (TBC) chronic heart limit is reduced so that the chest expands and rounded Asthma
- The arrangement of the membrane: When the diaphragm upward pressure pushes my heart up
- Changes in the position of the body influenced by normal projection of the core body position.