Cardiovascular+accidents

 A great number of people experience cardiovascular accidents such as infarction of the heart or brain vascular accidents. Such accidents have adverse effects on the heat and the arteries. These accidents represent the most common causes of death.Fat deposits and cholesterol can build up on the walls of arteries narrowing their diameter. These deposits are known as plaque. Plaque formation is generally linked to a high-fat diet. After the formation of the plaque, blood clots are more likely to form at the fatty deposit and can block the artery, thus causing major circulatory problems.

 Infarction: The cardiac muscle (heart) is provided with blood by the coronary vessels (in the form of crown). If one of the arteries is partially clogged, the area of the heart which is normally supplied with blood by the clogged artery would be deprived of nutrients and oxygen gas. Therefore, this deprived area will eventually stop contracting and dies (non-functional). Then disturbance of the cardiac cycles will occur; this is the beginning of an infarction.





References:
 *  [Photograph]. (n.d.). Retrieved May, 27, 2011, from: []
 *  [Photograph]. (n.d.). Retrieved May, 27, 2011, from: []
 *  [Photograph]. (n.d.). Retrieved May, 27, 2011, from: []
 *  Abou Lebdeh, D., Dakroub, R., Abboud Seif, N., & Geries Jarjour, Z. (2000). //Life and earth science//. Sin-El-Fil, Lebanon: Lebanese Educational Publishing Company.
 *  Patient.co.uk. (2010). //Myocardial infarction (heart attack)//. Retrieved May, 27, 2011, from []

 Causes of infarction:Infarction usually occurs due to disorders of the walls of the coronary artery, where plaque starts to accumulate inside the artery to narrow its diameter and eventually might be clogged. Factors that are known to increase the risk of infarction are: high-fat diet, stress, lack of exercise,and smoking. ** Questions to research - Cardiovascular accidents: **
 * 1) What are the main arteries and veins for blood circulation, and what are their characteristics?
 * 2) What are the clinical signs and symptoms of an infarction?
 * 3) Suggest a list of attitudes to adopt, in order to prevent cardiovascular disorders.

**Leen:**

**1) Pulmonary artery - The pulmonary artery is the vessel transporting de-oxygenated blood from the right ventricle to the lungs. A common misconception is that all arteries carry oxygen-rich blood. It is more appropriate to classify arteries as vessels carrying blood away from the heart. **

**Pulmonary vein - The pulmonary vein is the vessel transporting oxygen-rich blood from the lungs to the left atrium. A common misconception is that all veins carry de-oxygenated blood. It is more appropriate to classify veins as vessels carrying blood to the heart. **

**Superior Veno Cava - The superior vena cava is one of the two main veins bringing de-oxygenated blood from the body to the heart. Veins from the head and upper body feed into the superior vena cava, which empties into the right atrium of the heart. **

**Inferior Veno Cava - The inferior vena cava is one of the two main veins bringing de-oxygenated blood from the body to the heart. Veins from the legs and lower torso feed into the inferior vena cava, which empties into the right atrium of the heart. ** ** Aorta - ** ** The aorta is the largest single blood vessel in the body. It is approximately the diameter of your thumb. This vessel carries oxygen-rich blood from the left ventricle to the various parts of the body. **

** 2) chest pain, lower jaw pain, neck pain, back pain and a mimic of a heartburn. **

** 3) a- balanced diet ** ** b- moderate physical activity **  ** c- avoid fatty foods **  ** d- no smoking, alcohol and drugs **

Jida:

1) Pulmonary artery ( is the vessel that transports de-oxygenated blood from the right ventricle to the lungs) and Pulmonary vein (is a vessel transporting oxygen rich blood from the lungs to the left atrium) Superior Veno Cava ( brings de-oxygenated blood from the body to the hear mainly from the head and upper part of the body) and Inferior Veno Cava ( also brings de-oxygenated blood from the body to the hear, but from the lower parts of the body)

[Dalia]

1) Pulmonary Artery and Pulmonary Vein. The first is in charge of transporting de-oxygenated blood from the right ventricle to the lungs, and the second then transports the oxygen-rich blood from the lungs to left atrium. The next two are the Super Veno Cava and the Inferior Veno Cava, which brings de-oxygenated blood from the body to the heart. Lastly there is the Aorta, which is the largest and caries oxygen-rich blood to various parts of the body.

2) Chest and neck pain, possible pain in limbs or lower jaw, as well as sensations similar to a heartburn.

3) A balanced diet is recommended accompanied by a healthy exercise schedule and avoiding excess smoking, alcohol and especially drugs.