The Heart Structure/ The Structure of the Cardiac Muscle

Which of the following three options contains 2 ventricles and 2 atriums in its structure?

• Fish heart

• Amphibian heart

• Human heart

• Reptile heart

Which structure carries blood from the upper part of the body (neck, arms, head) to the heart?

• Aorta

• Pulmonary Vein

• Superior Vena Cava

• Inferior Vena Cava

The following are the layers of the heart wall except?

• Epicardium

• Myocardium

• Endocardium

• Senocardium

What is the function of the cardiac muscle cells?

• Perform synchronized contractions

• connect adjacent cardiac muscle cells

• to keep the heart pumping by specialized cells known as pacemakers

• pumps deoxygenated blood to the lungs

Which of the following are part of the four chambers of the human heart?

• Tricuspid Valve

• Right Ventricle

• Aorta

• Myocardium