Thorax Anatomy Quiz
Thorax is the region between the abdomen and neck. This quiz aims to provide you with thorax anatomy that will help you know more about this specific body part that plays an important role in the body's functioning. The quiz contains various ranging from easy medium to hard level that not only gauges your knowledge but would also provide you with valuable feedback. If you find the quiz helpful, do share it with your friends and family. All the best!
Questions and Answers
- 1.
Thoracic compartment that contains the heart, esophagus, trachea, major nerves, and major systemic blood vessels.
- A.
Left pleural cavity
- B.
Right pleural cavity
- C.
Mediastinum
- D.
Ventrical pleural cavity
Correct Answer
C. MediastinumExplanation
The correct answer is mediastinum. The mediastinum is the thoracic compartment that contains vital structures such as the heart, esophagus, trachea, major nerves, and major systemic blood vessels. It is located between the two pleural cavities and plays a crucial role in housing and protecting these important organs and structures.Rate this question:
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- 2.
The _________ nerves, which originate in the neck, also pass through the mediastinum to penetrate and supply the __________.
- A.
Phrenic, diaphragm
- B.
Pharynx, larynx
- C.
Phrenic, larynx
- D.
Diaphragm, larynx
Correct Answer
A. Phrenic, diaphragmExplanation
The phrenic nerves originate in the neck and pass through the mediastinum to supply the diaphragm. These nerves play a crucial role in the functioning of the diaphragm, which is the primary muscle involved in respiration.Rate this question:
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- 3.
The musculotendinous diaphragm seals the inferior thoracic aperture.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The musculotendinous diaphragm is a dome-shaped muscle that separates the thoracic and abdominal cavities. It plays a crucial role in respiration by contracting and relaxing to allow for the expansion and contraction of the lungs. Additionally, it acts as a seal for the inferior thoracic aperture, preventing the contents of the abdomen from moving into the thoracic cavity. Therefore, the statement that the musculotendinous diaphragm seals the inferior thoracic aperture is true.Rate this question:
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- 4.
As the diaphragm contracts, the height of the domes increases and the volume of the thorax decreases.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The diaphragm is a dome-shaped muscle that separates the thoracic cavity from the abdominal cavity. When the diaphragm contracts, it moves downward, increasing the volume of the thorax and allowing the lungs to expand. This expansion leads to a decrease in pressure within the thorax, causing air to rush into the lungs during inhalation. Therefore, the correct statement would be "As the diaphragm contracts, the height of the domes decreases and the volume of the thorax increases."Rate this question:
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- 5.
The ___________ and __________ penetrate the diaphragm; the _________ passes posterior to the diaphragm.
- A.
aorta, esophagus, vena cava
- B.
Esophagus, inferior vena cava, aorta
- C.
Esophagus, inferior vena cava, posterior vena cava
- D.
None of the above
Correct Answer
B. Esophagus, inferior vena cava, aortaExplanation
The statement describes the anatomical relationships between the aorta, esophagus, and vena cava in relation to the diaphragm. The aorta and esophagus pass through the diaphragm, meaning they travel through openings in the muscle. In contrast, the vena cava runs behind the diaphragm without penetrating it, maintaining its position posterior to the diaphragmatic muscle. This anatomical arrangement is important in understanding the structures within the thoracic cavity.Rate this question:
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- 6.
The pericardium and heart constitute the
- A.
Posterior mediastinum
- B.
Middle mediastinum
- C.
Anterior mediastinum
- D.
Superior mediastinum
Correct Answer
B. Middle mediastinumExplanation
The pericardium and heart are located in the middle mediastinum. The mediastinum is the central compartment of the thoracic cavity, and it is divided into different regions based on the structures present. The middle mediastinum is the region between the anterior and posterior mediastinum, and it contains the heart, pericardium, main bronchi, and other structures. Therefore, the pericardium and heart are correctly classified as being in the middle mediastinum.Rate this question:
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- 7.
The pericardium encloses the pericardial cavity surrounding the heart.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The pericardium is a double-layered membrane that surrounds the heart and forms the pericardial cavity. This cavity contains fluid that helps lubricate and protect the heart. Therefore, it is correct to say that the pericardium encloses the pericardial cavity surrounding the heart.Rate this question:
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- 8.
Each _______ is completely lined by a mesothelial membrane called the pleura.
- A.
Pleural cavity
- B.
alveoli cavity
- C.
Meningitis cavity
- D.
None of the above
Correct Answer
A. Pleural cavityExplanation
The pleural cavity is completely lined by a mesothelial membrane called the pleura. This membrane helps to reduce friction between the lungs and the chest wall during breathing. It also helps to create a sealed space for the lungs to expand and contract. The pleural cavity is an important part of the respiratory system and plays a crucial role in maintaining lung function. The other options, alveoli cavity and meningitis cavity, are not correct as they do not accurately describe the lining of the pleural cavity.Rate this question:
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- 9.
During development, the lungs grow out of the mediastinum, becoming surrounded by the pleural cavities.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
During development, the lungs grow out of the mediastinum, which is the central compartment of the chest. As they grow, they become surrounded by the pleural cavities, which are the spaces between the lungs and the chest wall. This process is a natural part of lung development and is true.Rate this question:
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- 10.
The ___________________, which is the largest and clinically most important recess, lies inferiorly between the thoracic wall and diaphragm.
- A.
Costodiaphragmatic recess
- B.
Cardiopragmatic recess
- C.
Menigitis recess
- D.
None of the above
Correct Answer
A. Costodiaphragmatic recessExplanation
The costodiaphragmatic recess is the correct answer. It is the largest and clinically most important recess that is located inferiorly between the thoracic wall and diaphragm. This recess is significant because it allows for expansion of the lungs during inspiration and is also a common site for fluid accumulation in conditions such as pleural effusion. The other options, cardiopragmatic recess and menigitis recess, are not anatomically correct terms and therefore are not the correct answer.Rate this question:
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- 11.
The jugular notch is located at the
- A.
Fourth intercostal space
- B.
Articulation between the manubrium of sternum and the body of sternum
- C.
Superior extent of the manubrium of the sternum
- D.
None of the above
Correct Answer
C. Superior extent of the manubrium of the sternumExplanation
The correct answer is the superior extent of the manubrium of the sternum. The jugular notch is a concave depression located at the superior part of the manubrium of the sternum. It is easily palpable and serves as a landmark for various clinical procedures, such as central venous catheterization and tracheostomy.Rate this question:
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- 12.
At the TIV/V level
- A.
The costal cartilage of rib II articulates with the sternum
- B.
The trachea bifurcates
- C.
The superior mediastinum is separated from the inferior mediastinum
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
At the TIV/V level, all of the above statements are correct. The costal cartilage of rib II does indeed articulate with the sternum. The trachea does bifurcate at this level, with the right and left primary bronchi branching off. Additionally, the superior mediastinum, which contains structures such as the thymus, great vessels, and trachea, is separated from the inferior mediastinum, which contains structures such as the heart and esophagus.Rate this question:
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- 13.
On each side, the internal jugular and subclavian veins join to form the brachiocephalic veins behind the sternal ends of the clavicles near the sternoclavicular joints.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the internal jugular and subclavian veins do join together on each side to form the brachiocephalic veins. This occurs behind the sternal ends of the clavicles near the sternoclavicular joints.Rate this question:
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- 14.
The brachiocephalic veins unite to form the inferior vena cava behind the lower border of the costal cartilage of the right first rib.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The brachiocephalic veins do not unite to form the inferior vena cava. Instead, they unite to form the superior vena cava, which is located in the chest and carries deoxygenated blood from the upper body to the heart. The inferior vena cava is formed by the union of the common iliac veins and carries deoxygenated blood from the lower body to the heart. Therefore, the statement is false.Rate this question:
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Jan 04, 2024Quiz Edited by
ProProfs Editorial Team -
Nov 11, 2011Quiz Created by
Dcw2013
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