Top 150+ Solved Thorax MCQ Questions Answer

a. great cardiac vein

b. anterior cardiac vein

c. small cardiac vein

d. oblique vein of the left atrium

e. posterior vein of the left ventricle

a. has a larger superficial part and a smaller deep part

b. is made up of sympathetic and parasympathetic fibres only

c. receives fibres from the left vagus nerve and left cervical sympathetic ganglion only into the superficial part

d. the deep part lies to the left of the ligamentum arteriosum

e. has preganglionic sympathetic fibres

a. the transverse sinus separates the four pulmonary veins

b. the parietal layer of the serous pericardium has no nerve supply

c. the fibrous pericardium is fused with the IVC

d. the fibrous pericardium is supplied by the phrenic nerve

e. strong sternopericardial ligaments connect the fibrous pericardium to the sternum

a. erector spinae

b. quadratus lumborum

c. latissimus dorsi

d. transversus thoracis

e. pectoralis major

a. descending thoracic aorta

b. thoracic duct

c. phrenic nerves

d. azygous vein

e. lymph nodes

a. pass behind anterior scalene muscle

b. the right nerve pierces the muscular part of the diaphragm

c. they are always in contact with pleura laterally

d. run in mediastinum behind the lung root

e. split into four main branches – anterior, posterior, medial and lateral

a. the right vagus nerve is in contact with the trachea

b. passes in front of the lung root

c. the right recurrent laryngeal branch hooks around the right subclavian artery

d. passes through the vena caval forearm

e. the right vagus nerve supplies branches to the superficial cardiac plexus

a. the aortic valve usually has two semilunar cusps

b. the pulmonary valve is at the level of the 3rd costal cartilage

c. they do not contain elastic fibres

d. the tricuspid valve has anterior, posterior and medial cusps

e. the mitral valve cusps are bigger and thinner than those of the tricuspid valve

a. the neurovascular bundle runs in the plane between external intercostal and internal intercostalnmuscles

b. neurovascular structures lie in the order of nerve, artery, vein from above downwards

c. the upper two spaces are supplied by the supreme intercostal artery

d. the collateral branches of the intercostal artery and nerve run along the upper border of the rib that forms the lower boundary of the space

e. the collateral branch of the intercostal nerve supplies skin over the space

a. conus artery

b. circumflex artery

c. anterior interventricular artery

d. anterior fibres of left bundle

e. posterior fibres of left bundle

a. right and left pleura meet each other in midline anteriorly at level of the sternal angle

b. both cross the midclavicular line at the 6th rib

c. both cross the midaxillary line at the 10th rib

d. both cross the 12th rib at the lateral border of erector spinae

e. both pass under the 12th costovertebral angle

a. left superior bronchus

b. left inferior bronchus

c. right superior bronchus

d. right middle bronchus

e. right inferior bronchus

a. is always related to the right side of the aorta

b. receives no lymph drainage from the neck

c. terminates in the superior vena cava

d. may have two or three branches at its termination

e. is entirely thoracic throughout its course

a. hilum of each lung lies level with 5th, 6th and 7th thoracic vertebrae

b. lower border of the lungs lie two ribs higher than the pleural reflection

c. the line of the 6th rib is the marking for the oblique fissures

d. horizontal fissure runs from the right 4th costal cartilage horizontally to mid-axillary line

e. anteromedial border of the left lung in the 5th intercostal space lies at the apex of the heart

a. it is active in both inspiration and expiration

b. the aorta is transmitted through an opening in the left crus

c. the left dome may ascend to the 5th intercostal space

d. the phrenic nerve branches run medially on its thoracic surface

e. it receives its blood supply entirely from lower intercostal and subcostal arteries