Anatomy-Thorax

3. The nerve which primarily innervates the diaphragm.
6. The valve which guards coronary sinus.
7. An underlying structure which causes tympanic note on percussion in Traube's space on the chest wall.
9. This artery supplies the SA node in around 65% of people
11. Intercostobrachial nerve is a branch of which intercostal nerve?
14. A structure which begins as a continuation of the upper end of cisterna chyli near the lower border of T12 vertebrae.
16. Damage to this nerve causes winging of scapula,which is it?
17. Right bronchial vein drains into this vein,Which is it?
18. Carina is situated at the level of which thoracic vertebrae?
19. Type of cartilage in trachea.
20. An artery formed by the union of vertebral arteries of both side.

1. Internal thoracic artery is a branch of which part of subclavian artery?
2. The vein draining into right atrium without a valve at the orifice.
4. Uppermost structure in the hilum of right lung.
5. A clinical condition caused due to compression of mediastinal structures by any growth such as tumour or cyst.
8. The structure which causes cervical constriction of oeophagus.
10. The vein passing through the central tendon of diaphragm.
12. An artery which is also called as third coronary artery.
13. Largest structure of the mediastinum.
15. The main inspiratory muscle.