Cardiovascular System - Anatomy & Blood Flow

Which of the following is a correct description of the heart?

• The apex is superior; the base is inferior
• The apex is posterior to the sternum
• The left border is also called the diaphram border
• A midsaggital section of the body divides the heart into equal right and left portions

The layer of tissue that anchors the heart to the diaphragm and sternum, is fused to the blood vessels entering and leaving the heart, and that prevents over stretching of the heart is the: 

• mediastinum
• fibrous pericardium
• parietal layer of the serous pericardium 
• visceral layer of the serous pericardium

The ____________ is an external feature of the heart that is located between the atria and ventricles.

• fossa ovalis
• foramen ovale
• coronary sulcus
• interventricular sulcus

The atria of the heart

• exhibit ridges in the inner walls called trabeculae carneae
• are connected by an opening called the fossa ovalis
• contain oxygenated blood
• are not characterized by the aforementioned features

Which of the following vessels deliver blood to the right atrium? 
1. superior vena cava
2. inferior vena cava
3. pulmonary veins
4. coronary sinus
5. pulmonary arteries 

• 1, 2, 3, 4
• 1, 4, 5
• 1, 2, 4
• 2, 3

Which of these vessels carries blood away from the heart? 

• coronary sinus
• pulmonary vein
• inferior vena cava
• pulmonary artery

There are four sets of valves in the heart
1. bicuspid
2. tricuspid
3. pulmonary semilunar
4. aortic semilunar
What is the correct order in which blood flows through these valves, starting in the right atrium?

• 1, 4, 2, 3
• 1, 3, 2, 4
• 2, 3, 1, 4
• 2, 4, 1, 3

The AV valve in the left side of the heart is known as the 

• bicuspid
• pulmonary semilunar
• tricuspid
• aortic semilunar

Which of the following terms is most closely matched? 

• bicuspid valve; oxygenated blood
• tricuspid valve, deoxygenated blood
• pulmonary semilunar valve; deoxygenated blood
• all terms are correlated appropriately 

Which of the following are branches of the right coronary artery?
1. marginal branch
2. circumflex branch
3. anterior interventricular branch
4. posterior interventricular branch

• 1, 2, 4
• 1, 3
• 2, 3
• 1, 4