Ctosu: Anatomy Of The Heart
A quiz testing knowledge of the Anatomy of the Heart for Perfusion students and professionals.
Questions and Answers
- 1.
How many chambers are in the Heart?
- A.
4
- B.
2
- C.
3
- D.
6
- E.
1
Correct Answer
A. 4Explanation
The correct answer is 4 because the heart consists of four chambers: two atria and two ventricles. The atria receive blood from the body and lungs, while the ventricles pump blood out of the heart to the rest of the body. Each chamber has a specific function in the circulation of blood throughout the body.Rate this question:
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- 2.
Where is the pectinated muscle found?
- A.
In the ventricles
- B.
In the atria
- C.
In the ventricles and atria
- D.
In the right atrium and ventricle
- E.
In the left atrium and ventricle
Correct Answer
B. In the atriaExplanation
Pectinated muscles are found in the atria of the heart. These muscles are characterized by their ridged or comb-like appearance and are responsible for increasing the surface area of the atrial walls. This increased surface area allows for more efficient contraction and helps in the pumping of blood from the atria into the ventricles.Rate this question:
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- 3.
What valve separates the RA from the RV?
- A.
Tricuspid valve
- B.
Mitral valve
- C.
Bicuspid valve
- D.
Aortic valve
- E.
Pulmonic valve
Correct Answer
A. Tricuspid valveExplanation
The tricuspid valve is the correct answer because it is the valve that separates the right atrium (RA) from the right ventricle (RV). It is called the tricuspid valve because it has three leaflets or cusps that open and close to regulate blood flow between the RA and RV.Rate this question:
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- 4.
What valves have nodulus arantis?
- A.
The AV valves
- B.
The semilunar valves
Correct Answer
B. The semilunar valvesExplanation
The semilunar valves have nodulus arantis. The nodulus arantis is a small nodular thickening of the fibrous ring in the heart valves, which helps to support and strengthen the valve leaflets. The semilunar valves, specifically the pulmonary valve and the aortic valve, are located between the ventricles and the major arteries leaving the heart. They prevent backflow of blood from the arteries into the ventricles and ensure efficient blood flow through the circulatory system.Rate this question:
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- 5.
What are the names of the three leaflets of the tricuspid valve?
- A.
Anterior, lateral, medial
- B.
Anterior, posterior, lateral
- C.
Anterior, posterior, septal
- D.
Septal, medial, lateral
Correct Answer
C. Anterior, posterior, septalExplanation
The correct answer is anterior, posterior, septal. The tricuspid valve is located between the right atrium and right ventricle of the heart. It consists of three leaflets or cusps, which are named based on their location. The anterior leaflet is the one closest to the front of the heart, the posterior leaflet is the one closest to the back of the heart, and the septal leaflet is the one closest to the septum, which is the dividing wall between the right and left sides of the heart.Rate this question:
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- 6.
Where is the sinus of valsalva?
- A.
At the exit of the coronary sinus
- B.
At the entrance of the coronary sinus
- C.
In the aorta
- D.
In the RA
- E.
In the LA
Correct Answer
C. In the aortaExplanation
The sinus of Valsalva is located in the aorta. This structure is formed by the three dilations or pouches in the wall of the aorta just above the aortic valve. The sinus of Valsalva plays an important role in preventing backflow of blood into the left ventricle after ventricular contraction by supporting the proper functioning of the aortic valve.Rate this question:
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- 7.
What coronary artery may have its own ostia originating from the aorta?
- A.
The PDA
- B.
Circumflex
- C.
Conus
- D.
Ramus
Correct Answer
C. ConusExplanation
The conus artery may have its own ostia originating from the aorta.Rate this question:
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- 8.
What is the correct order from outermost to innermost layers of the pericardium?
- A.
Fibrous, visceral, serous space, serous layer
- B.
Visceral, serous space, serous layer, fibrous
- C.
Fibrous, serous, serous space, visceral
- D.
Fibrous, serous space, serous layer, visceral
Correct Answer
C. Fibrous, serous, serous space, visceralExplanation
The correct order from outermost to innermost layers of the pericardium is fibrous, serous, serous space, visceral. The fibrous layer is the outermost layer of the pericardium, providing structural support and protection. Next is the serous layer, which consists of two layers - the parietal layer and the visceral layer. The serous space is the space between these two layers, filled with serous fluid. Finally, the innermost layer is the visceral layer, which directly covers the heart.Rate this question:
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