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The right coronary artery provides blood to the:
right ventricle, part of the interventricular septum, and both atria.
The left coronary artery divides into 2 branches:
- The circumflex artery, and
- the anterior interventricular artery
The left coronary artery supplies:
Both atria, the rest of the interventriccular septum, and most of the left ventricle
Many veins are interconnected by linking vessels, which provide alternative routes back to the heart. These linking vessels are called:
There are 3 separate routes by which blood returns to the heart:
- The coronary sinus
- The superior vena cava
- The inferior vena cava
Coronary capillaries converge to form the cardiac veins, which emerge into a large vessel called:
The coronary sinus. This then drains directly into the right atrium
The veins draining the brain empty into the dural sinuses before going mainly into the internal jugular veins. These merge with the subclavian veins coming from the arms to form the:
Brachiocephalic veins. The 2 BC veins then join to make the superior vena cava.
The veins which drain the parts of the body originally supplies by the abdominal aorta all merge into the:
Inferior vena cava
The legs are drained by the:
Common iliac veins
What does it mean when a valve becomes leaky or incompetent?
It means that there is some backflow of blood in valves
Much of the thorax drains via the:
Azygos system, which empties blood collected from branches of the thoracic aorta via the azygos vein into the superior vena cava.
Blood leaves the right ventricle via the pulmonary trunk, which divides into the left and right pulmonary arteries. These then split into the:
3 right and 2 left lobar arteries.
The 4 pulmonary veins enter:
The left atrium
The upper end of the sternum is attached at a slight angle to the...? What is the spot where the sternum and the... are joined called? What is this angle called?
It is attached to the manubrium. The spot where the manubrium and sternum are joined is called the manubriosternal joint. The angle is called the sternal angle.
What is the costal margin?
It is formed by the costal cartilages of the 7th and 10th ribs.
What is the anatomical term for the armpit?
The axillary fossa.
The chest is marked by 3 imaginary vertical lines that help identify the location of the heart:
- The mid-sternal lineThe mid-clavicular lineThe mid-axillary line
The pulse which is most commonly palpated is the:
Radial pulse in the wrist
Some of the most commonly used pulses are:
- The Carotid pulse,
- Brachial pulse,
- Femoral, posterior tibial, and dorsalis pedis pulses
Blood normally flows downwards into the heart via gravity in the internal jugular veins.
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