Thorax Old Qst

Question 1

Cervical compression of esophagus

Answer 1

Cricopharyngeal muscle

4 points of esophageal compression:

1. Cricopharyngeal muscle
2. Arch of aorta
3. Left main bronchus
4. Eshophageal hiatus in diaphragm

Question 2

Typical intercostal nerve

Answer 2

3rd to 6th intercostal nerves are typical intercostal nerves as they supply thoracic wall ONLY.

Question 3

Dysphagia Lusoria caused by

Answer 3

Aberrant right subclavian artery

Question 4

Features of Morgagnian hernia

Answer 4

1. Common on right side
2. Asymptomatic
3. Commonly herniates into Larrey’s space
4. Transverse colon is most commonly involved
5. Stomach, small bowel, liver are rarely involved

Question 5

Malignant mass in hilum of left lung growing anteriorly towards principal bronchus compressess

Answer 5

Phrenic nerve

Question 6

Cervical rib arises from

Answer 6

Costal part of C7

Question 7

Right inferior vein drains into

Answer 7

Inferior vena cava

Question 8

Hilum of right lung is arched by

Answer 8

Azygous vein

Question 9

Dysphagia Lusoria

Answer 9

Aberrant right subclavian artery

Question 10

Fossa ovalis represents

Answer 10

Septum primum

Question 11

Contents of posterior mediastinum

Answer 11

1. Descending aorta
2. Esophagus
3. Azygous and hemiazygous veins
4. Vertebrae
5. Thoracic duct
6. Lower portion of vagus
7. Sympathetic chain
8. Posterior mediastinal nodes

Question 12

Three major diagphragmatic openings

Answer 12

T8 -> IVC
T10 -> Esophagus
T12 -> Aorta

“ I 8; 10 Eggs; At 12”

Question 13

Oblique vein of left atrium (OR) Vein of Marshall is formed by

Answer 13

Left common cardinal vein

Question 14

Structure behind lower part of manubrium sterni is

Answer 14

Arch of aorta

Question 15

Hernia through Bochdalek’s foramen is

Answer 15

Diaphragmatic hernia

Question 16

Arch of aorta is in _______ mediastinum?

Answer 16

Superior mediastinum

Question 17

3 features of Long thoracic nerve of Bell

Answer 17

1. Arises from roots of C5, C6, C7
2. Supplies Serratus anterior muscle
3. Paralysis cause winging of scapula

Question 18

Sympathetic trunk enters abdominal cavity behind

Answer 18

Deep to medial arcuate ligament;

Subcostal nerve enters deep to lateral arcuate ligament