Top 150+ Solved Thorax MCQ Questions Answer

a. the 1st costal cartilage articulates with the manubrium by a synovial joint

b. the radiate ligament has two bands, upper and lower

c. the typical ribs are 3rd to 10th

d. the groove for the subclavian artery is anterior to the scalene tubercle on the 1st rib

e. the angle of the 2nd rib is the most posterior part of its curvature

a. pectoralis major has slips of origin from the upper 8 costal cartilages

b. the first digitation of serratus anterior attaches to the 1st and 2nd rib

c. rectus abdominus is attached to the anterior surfaces of the 7th to 10th costal cartilages

d. iliocostalis and longissimus, parts of erector spinae, are attached between the heads and tubercles of each rib

e. serratus anterior is attached to the lower 8 ribs

a. the azygous vein arches under the right main bronchus

b. the right brachiocephalic vein receives the thoracic duct

c. the aortic arch is crossed on the left side by the phrenic and vagus nerves

d. the superficial cardiac plexus contains right and left vagal and sympathetic fibres

e. the superior vena cava receives the azygous vein at the lower border of the right 1st costal cartilage

a. the superior vena cava does not fuse with the fibrous pericardium

b. the transverse sinus separates the four pulmonary veins

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

d. the strong sternopericardial ligaments connect fibrous pericardium to upper/lower ends of sternum

e. the oblique sinus permits pulsation of the left atrium

a. the oesophagus enters the abdomen at T8 level

b. the right gastric artery is a branch of the splenic artery

c. the hepatopancreatic ampilla opens into the horizontal part of the duodenum

d. the taeniae coli converge at the ileocaecal valve

e. McBurneys point is one third of the way up the oblique line that joins the right anterior superior iliac spine to the umbilicus

a. derived from S1, 2, 3, 4

b. motor to the mm of bladder neck and anal sphincter

c. motor to all the gut

d. secretomotor to the gut from splenic flexure dome

e. sympathetic nerves

a. ilioinguinal nerve

b. sciatic nerve branches

c. peroneal branches of the posterior femoral cutaneous nerve

d. a branch of the pudendal nerve

e. none of the above

a. are 25cm long

b. are crossed anteriorly by gonadal vessels

c. leave the psoas muscle at the bifurcation of the common iliac artery

d. are retroperitoneal

e. all of the above

a. in each space there are single anterior and posterior intercostal veins

b. right sided superior intercostal vv drain into the brachiocephalic vein

c. the second intercostal space does not contain a posterior intercostal artery

d. all intercostal vv are branches of the descending thoracic aorta

e. all this is clinically relevant

a. the SA nodal artery is more commonly a branch of the left coronary artery

b. 40% of hearts show “left dominance”

c. the marginal and anterior interventricular arteries are the main branches of the left coronary artery

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

e. the circumflex artery travels in the atrioventricular groove

a. the carina lies to the left of the midline

b. the left apicoposterior bronchus of the upper lobe rises highest from the posterior surface of the lung

c. each lung has eight segmental bronchi

d. the left main bronchus is shorter than the right

e. blood supply is via the pulmonary arteries

a. commences at L1

b. passes through the oesophageal opening of the diaphragm (T10)

c. enters the right side of the superior mediastinum

d. does not drain the right arm

e. terminates in the inferior vena cava

a. azygous vein

b. vagus nerve

c. right phrenic nerve

d. sympathetic trunk

e. thoracic duct

a. the neurovascular space lies deep to the transversus group

b. the collateral nerves lie just above the ribs

c. the first intercostal nerve does not supply muscle

d. the lower third intercostal nerves supply the abdominal wall

e. all intercostal arteries are branches of the descending thoracic aorta

a. has an avascular fibrous cord in the abdomen

b. begins as the union of ascending lumbar vein with the subcostal vein on the left side

c. arches over the right pulmonary artery

d. receives veins from the upper third of the oesophagus

e. usually enters the brachiocephalic vein