Cardiovascular System: Blood Vessels and Mediastinum

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Which part of the thoracic cavity contains the majority of the thoracic organs and acts as a conduit for structures traversing the thorax?

Inferior mediastinum

Middle mediastinum

Superior mediastinum (correct)

Anterior mediastinum

Which of the following structures divides the mediastinum into superior and inferior parts?

T4 vertebrae (correct)

Superior thoracic aperture

Sternal angle

Pericardium

Where is the heart located within the thoracic cavity?

Middle mediastinum

Anterior mediastinum

Superior mediastinum

Inferior mediastinum (correct)

What covers and protects the heart?

Pericardium Signup and view all the answers

The heart is pyramidal in shape and pumps and receives blood from all parts of the body. Which part of the heart lies to the right of the midline?

1/3 Signup and view all the answers

What extends upwards and terminates at the superior thoracic aperture?

Superior mediastinum Signup and view all the answers

What is the function of the endocardium?

It consists of endothelium and connective tissue Signup and view all the answers

Where is the base of the heart located?

Formed by the left and right atria, directed posterior, superior to the right Signup and view all the answers

Which structure guards the atrioventricular opening?

Tricuspid valve Signup and view all the answers

What is the main function of the left ventricle?

Ejects blood to the aorta through semilunar aortic valve Signup and view all the answers

Which arteries supply blood to the heart?

Ascending aorta branches Signup and view all the answers

What is the role of myocarditis?

Inflammation of the myocardium Signup and view all the answers

What drains blood from body parts below the diaphragm?

Inferior vena cava Signup and view all the answers

Where does the left coronary artery originate from?

Ascending aorta Signup and view all the answers

What separates the right and left ventricles?

Interventricular septum Signup and view all the answers

Which part of the heart forms the apex?

Left Ventricle Signup and view all the answers