Top 150+ Solved Thorax MCQ Questions Answer

a. usually enters the right subclavian vein

b. only drains the middle third of the oesophagus

c. only drains part of the oesophagus and bronchial vein

d. passes forward anteriorly medial to the oesophagus from T3

e. arches over the right bronchus at left of T4 vertebra

a. starts at the thyroid cartilage

b. bifurcates into the right and left bronchi behind the manubrium – sternal angle

c. passes through the posterior mediastinum

d. is not supplied by the recurrent laryngeal nerve

e. blood supply is from the superior thyroid artery

a. the inlet is bounded by the scapulae, clavicles and sternum

b. the inferior border of the superior mediastinum is level with T4

c. the right phrenic nerve passes through the oesophageal opening

d. the left phrenic nerve passes through the oesophageal opening

e. the thoracic duct passes through the canal opening

a. is a simple synovial joint

b. is more likely to dislocate posteriorly than anteriorly

c. is supplied by the cervical plexus

d. undergoes weak active rotation due to the action of subclavius

e. owes most of its strength to a single band of fibres joining clavicle to sternal notch and manubrium

a. the lungs are supported at the hilum by the pulmonary ligament

b. the right lung horizontal fissure lies at the 4th intercostal space

c. the parietal and visceral pleura have rich sensory innervation

d. the hilum of the lung lies at the level of theT7-8 vertebra

e. the dome of the lung rises above the medial one third of the clavicle

a. the pulmonary trunk divides anterior to the left main bronchus

b. the pulmonary trunk divides anterior to the carina

c. the left and right lung inferior lobes each have four segments

d. the upper lobe of the right lung reaches the 5th costochondral junction anteriorly in the rest position

e. the left lung inferior lobe has five segments and the right has four

a. the commonest arterial pattern is that of ‘left dominance’

b. the sinoatrial nodal artery arises from the left coronary artery in almost half the population

c. the anterior cardiac veins drain the left ventricle

d. the coronary sinus drains into the left atrium

e. the right coronary artery arises from the posterior aortic sinus

a. oesophageal-gastric lymphatics

b. branches of the left gastric artery

c. the left phrenic nerve

d. posterior vaginal plexus

e. azygous vein

a. passes through the oesophageal hiatus of the diaphragm

b. crosses over the right bronchus at T6

c. drains into the left brachiocephalic vein

d. drains the lower eight intercostal spaces

e. drains the inferior third of the oesophagus

a. the subcostals line the rib cage at the side

b. fibres of the innermost intercostal group only span one intercostal space

c. fibres of the subcostals group only span one intercostal space

d. transversus thoracis fibres only arise from 2nd to 6th costal cartilages

e. the border of the subcostal muscle group meets the innermost intercostal groups, overlapping slightly so the intercostal artery can slip between them to join the intercostal nerve