[Anatomy] The Thorax quizzes – Part 1 (20 questions)

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[Anatomy] The Thorax quizzes – Part 1 (20 questions)
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Select the one best response to each question!

All of the following statements correctly apply to the right atrium EXCEPT

The right border of the heart is formed by the right atrium; it receives venous blood from the SVC, IVC, and coronary sinus. It contains both the crista terminalis and the limbus fossae ovalis. The interior of the ventricles contains irregular muscular elevations called trabeculae carneae

1. The articular part of a rib tubercle articulates with which of the following structures?
(A) body of the vertebra
(B) costal cartilage
(C) adjacent rib
(D) sternum
(E) transverse process
2. Where is the groove for the subclavian artery located?
(A) posterior to the scalene tubercle
(B) on the clavicle
(C) on the manubrium
(D) at the sternal angle
(E) at the angle of the 1st rib
3. The retromammary space is located between which of the following structures?
(A) skin and the areola
(B) pectoralis major and minor
(C) breast and deep pectoral fascia
(D) suspensory ligament and the skin
(E) lactiferous sinus and the nipple
4. The high death rate associated with breast cancer is related to which of the following?
(A) nerve supply
(B) blood supply

(C) venous drainage
(D) poor imaging techniques
(E) complex lymphatic drainage

5. Which of the following statements correctly apply to the internal thoracic artery?
(A) It runs posterior to the transversus thoracis muscle.
(B) It ends in the 6th intercostal space.
(C) It divides into the superior and inferior epigastric arteries.
(D) It runs posterior to the superior six ribs.
(E) It gives rise to the posterior intercostal arteries.
6. Which of the following statements concerning the sternal angle is correct?
(A) It lies at the level of the intervertebral disk between T4/T5.
(B) It is flanked by the costal cartilage of the 3rd pair of costal cartilages.
(C) It is crossed by the superior epigastric artery.
(D) It lies in the epigastric fossa.
(E) It is located 3 mm superior to the jugular notch.
7. The pleural cavity contains which of the following?
(A) lungs
(B) bronchi
(C) serous pleural fluid
(D) lymph nodes
(E) pulmonary arteries and veins
8. The parietal pleura consists of all of the following parts EXCEPT
(A) costal
(B) pericardial
(C) mediastinal
(D) diaphragmatic
(E) cervical
9. All of the following statements correctly apply to the right lung EXCEPT
(A) The superior and oblique fissures divide it into three lobes.
(B) It is larger and heavier than the left lung.
(C) It is shorter and wider than the left lung.
(D) It contains a thin, tonguelike process called the lingula.
(E) It has three surfaces.
10. All of the following statements correctly apply to the left main bronchus EXCEPT
(A) It is wider, shorter, and runs more vertically than the right main bronchus.
(B) It passes anterior to the esophagus.
(C) It passes anterior to the thoracic aorta.
(D) It contains c-shaped rings of hyaline cartilage.
(E) It arises at the level of the sternal angle.
11. All of the following statements correctly apply to a bronchopulmonary segment EXCEPT
(A) It is separated from adjacent segments by connective tissue septa.
(B) It is the largest subdivision of a lobe.
(C) It is not resectable.
(D) It is named according to the segmental bronchus supplying it.
(E) It is a pyramid-shaped segment of the lung, with its apex facing the lung root and its base at the pleural surface.
12. Which of the following structures is located in the middle mediastinum?
(A) thoracic duct
(B) lungs
(C) esophagus

(D) heart
(E) azygos vein

13. All of the following statements correctly apply to the right atrium EXCEPT
(A) It receives blood from the superior and inferior vena cava and coronary sinus.
(B) It forms the right side of the heart.
(C) It contains the crista terminalis.
(D) It contains the limbus fossae ovalis.
(E) It contains trabeculae carneae.
14. The interventricular septum contains which of the following structures?
(A) anterior papillary muscle
(B) fossa ovalis
(C) sinus venarum
(D) sinoatrial node
(E) conus arteriosus
15. All of the following statements correctly apply to the right coronary artery EXCEPT
(A) Typically supplies the SA node in approximately 60% of people.
(B) Typically supplies the AV node in approximately 80% of people.
(C) Arises from the arch of the aorta.
(D) Runs in the coronary sulcus.
(E) Dominance is typical.
16. Which of the following is the basic structural unit for gas exchange in the lung?
(A) terminal bronchioles
(B) respiratory bronchioles
(C) alveolar ducts
(D) alveoli
(E) bronchi
17. Which of the following structures carry highly oxygenated blood from the lungs to the heart?
(A) pulmonary arteries
(B) pulmonary veins
(C) coronary arteries
(D) cardiac veins
(E) ascending aorta
18. Which of the following structures is located in the posterior mediastinum?
(A) lungs
(B) heart
(C) azygos vein
(D) superior vena cava

(E) right coronary artery

19. All of the following statements concerning spinal nerves are correct EXCEPT
(A) The dorsal and ventral rami are both motor and sensory.
(B) The cutaneous branches include anterior, lateral, and posterior branches.
(C) The dorsal root is both sensory and motor.
(D) The ventral root is pure motor.
(E) They supply a bandlike skin area known as a dermatome.
20. Which of the following statements correctly applies to the tricuspid valve?
(A) It guards the left atrioventricular orifice.
(B) It guards the conus arteriosus.
(C) It is also known as the mitral valve.
(D) Chordae tendineae attach to the free edges of the cusps.
(E) The apex of each cusp attaches to the fibrous ring around the orifice.

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