why does heart veins get clugged?
I´m just really curious why veins that are connected to the heart FROM the lung don´t work and why don´t they work... so i´ve got this friend who can´t do much exersice because theres not enough oxigen reaching her heart and sometimes just by doing absolutely nothing she starts hiperventilating, i really want to know whats wrong with her and help her in anyway i can... THE MAIN THING I WANT TO KNOW IS WHY DO SOMETIMES THE VEINS THAT PROVIDE THE OXYGEN STOP WORKING... please help me i really need of all your help
they are called coronary arteries. The get clogged when you have too much bad cholesterol in your blood or eat a lot of fat food.Pulmonary hypertension is high blood pressure in the arteries that supply the lungs. The blood pressure measured by a cuff on your arm isn't directly related to the pressure in your lungs. The blood vessels that supply the lungs constrict and their walls thicken, so they can't carry as much blood because pressure builds up and causes the heart to become congested. This causes the heart to work harder, trying to force the blood through. If the pressure is high enough, eventually the heart can't keep up, and less blood can circulate through the lungs to pick up oxygen. Patients then become tired, dizzy and short of breath.
Aside from pulmonary hypertension, many heart conditions can cause shortness of breath in and of themselves. The heart must pump oxygenated blood throughout the body and if the heart cannot pump properly (for any number of reasons), a person may also feel short of breath, dizzy, faint, etc.
Fire in My Heart, Ice in My Veins: A Journal for Teenagers Experiencing a Loss
veins of the heart - click on the image below for more information.
veins of the heart
Fire In My Heart, Ice In My Veins A Journal for Teenagers by Enid Traisman. Teens can write letters, copy down meaningful lyrics, write songs and poems, tell the person who died what they want them to know, finish business and use their creativity to work through the grieving process.
Fire in My Heart, Ice in My Veins: A Journal for Teenagers Experiencing a Loss
Click on the button for more veins of the heart information and reviews.
Veins
Image by MoToMo
Heart Model - Azygos and Brachiocephalic Veins
This video was produced to help students of human anatomy at Modesto Junior College study our anatomical models.
Video Rating: 4 / 5
Article by Alison Major
The heart is a hollow, muscular organ about the size of a closed fist. Located between the lungs in the mediastinum, it's about 12.5 cm (5") long and 9 cm (3½") in diameter at its widest point. It weighs between 250 and 285 g (8.8 and 10 oz).
Where's your heart?The heart spans the area from the second to the fifth intercostal space. The right border of the heart lines up with the right border of the sternum. The left border lines up with the left midclavicular line. The exact position of the heart may vary slightly with each patient. Leading into and out of the heart are the great vessels:
• inferior vena cava• superior vena cava• aorta• pulmonary artery• four pulmonary veins.
Slip and slideA thin sac called the pericardium protects the heart. It has an inner, or visceral, layer that forms the epicardium and an outer, or parietal, layer. The space between the two layers contains 10 to 30 ml of serous fluid, which prevents friction between the layers as the heart pumps.
Chamber madeThe heart has four chambers - two atria and two ventricles - separated by a cardiac septum. The upper atria have thin walls and serve as reservoirs for blood. They also boost the amount of blood moving into the lower ventricles, which fill primarily by gravity.
Blood pathwaysBlood moves to and from the heart through specific pathways. Deoxygenated venous blood returns to the right atrium through three vessels:
superior vena cava - returning blood from the upper bodyinferior vena cava - returning blood from the lower bodycoronary sinus - returning blood from the heart muscle
Get some fresh airBlood in the right atrium empties into the right ventricle and is then ejected through the pulmonary valve into the pulmonary artery when the ventricle contracts. The blood then travels to the lungs to be oxygenated.
Share the wealthFrom the lungs, blood travels to the left atrium through the pulmonary veins. The left atrium empties the blood into the left ventricle, which then pumps the blood through the aortic valve into the aorta and throughout the body with each contraction. Because the left ventricle pumps blood against a much higher pressure than the right ventricle, its wall is three times thicker.
ValvesValves in the heart keep blood fl owing in only one direction through the heart. Think of the valves as traffic police at the entrances to one-way streets, preventing blood from travelling the wrong way despite great pressure to do so. Healthy valves open and close as a result of pressure changes within the four heart chambers.
Matching setsThe heart has two sets of valves:
atrioventricular (AV) (between atria and ventricles) - tricuspid valve on the heart's right side and mitral valve on its left semilunar - pulmonary valve (between the right ventricle and pulmonary artery) and aortic valve (between the left ventricle and aorta).
On the cuspEach valve has cusps (leaflets), which are anchored to the heart wall by cords of fibrous tissue (chordae tendineae). The cusps of the valves act to maintain tight closure. The tricuspid valve has three cusps, the mitral valve has two cusps and each of the semilunar valves has three cusps.
About the Author
Lippincott Williams & Wilkins (LWW) is a leading international publisher of professional health information for physicians, nurses, specialized clinicians and students. We offer a comprehensive line of health-science books and new media with thousands of well-known titles, from reference tools, such as Stedman's Medical Dictionary and Griffith's 5 Minute Clinical Consult, to comprehensive research and education Information for medical specialists and students. LWW also publishes over 275 journals, newsletters and loose-leaf products in specialty fields for physicians, clinicians, and nurses, including some of the industry's most respected titles.
Lww.co.uk features more than 3,000 titles in over 100 disciplines.
Follow us on twitter at @Incredibly_Easy!
'Like' us on Facebook at Made Incredibly Easy! UK Editions
Read more about this and the other Made Incredibly Easy! UK Edition books in the collection at www.MadeIncrediblyEasy.co.uk
How to Meditate with Heart
Do you know that your heart contains the key to solving your biggest life problems? Now there's an Effective and Easy Way To Relieve Stress, Find Your Calm Center and Meditate Deeply. Many of us have unwittingly blocked this awesome power source.
How to Meditate with Heart
Orignal From: why does heart veins get clugged?
