The Cardiovascular System: Heart Anatomy BMS QUIZ

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Where is the location of the heart in relation to the vertebral column?

Posterior

Superior surface of diaphragm

Left of the midline

Anterior (correct)

What is the function of the pericardium in relation to the heart?

Works as a coverage

Anchors the heart in place (correct)

Allows overfilling of the heart

Does not protect the heart from external damage

Which layer of the heart covers the surface of the heart itself?

Myocardium

Pericardium

Epicardium (correct)

Endocardium

What is the pathway of blood through the heart (ignoring the lungs)?

Right atrium → tricuspid valve → right ventricle (A) Signup and view all the answers

Which structure separates the parietal layer from the visceral layer in the pericardial cavity?

Pericardial fluid (A) Signup and view all the answers

What is the function of the fibrous skeleton of the heart?

Creates a structural framework for attachment (D) Signup and view all the answers

What is the role of pulmonary veins in the cardiovascular system?

Carry oxygenated blood from lungs to left atrium (D) Signup and view all the answers

What is the main function of atria in the heart?

Deliver blood to adjacent ventricles (A) Signup and view all the answers

Why are the walls of ventricles much thicker and stronger compared to the atria?

To supply blood to the lungs with little flow resistance (D) Signup and view all the answers

What is the role of AV valves in the heart?

Prevent backflow into the atria when ventricles contract (C) Signup and view all the answers

Where is the aortic semilunar valve located?

Between the left ventricle and aorta (D) Signup and view all the answers

What type of muscle is cardiac muscle?

Striated muscle (D) Signup and view all the answers

What do intercalated discs do in cardiac muscle cells?

Anchor cells together and allow free passage of ions (D) Signup and view all the answers

Why is the myocardium thicker in the left ventricle compared to the right?

To supply systemic circulation (D) Signup and view all the answers

Which valve prevents backflow of blood into the ventricles?

Pulmonary semilunar valve (C) Signup and view all the answers

What tissue acts as both tendon and insertion in cardiac muscle?

Endomysium (D) Signup and view all the answers

What do chordae tendineae anchor to in papillary muscles of the heart?

AV valves (A) Signup and view all the answers

Where is the coronary sinus located?

Posterior aspect of the heart (A) Signup and view all the answers

Which vein is the largest tributary draining into the coronary sinus?

Great cardiac vein (C) Signup and view all the answers

Where does the small cardiac vein empty into?

Coronary sinus (A) Signup and view all the answers

Which chamber of the heart has papillary muscles and trabeculae carneae muscles marking its walls?

Left ventricle (C) Signup and view all the answers

From where does blood enter the left atrium?

Pulmonary veins (D) Signup and view all the answers

What are the receiving chambers of the heart called?

Atria (C) Signup and view all the answers

Which vein originates at the apex of the heart and ascends in the anterior interventricular groove?

Great cardiac vein (D) Signup and view all the answers