514.Papillary carcinomas spread by the route of

a.Lymphatics
b.Hematogenous
c.Direct
d.All

Ans-a.Lymphatics

Follicular carcinoma spreads via hematogenous route.Medullary and papillary carcinoma spreads via lymphatics and anaplastic has a direct spread

513.All structures are preseved in radical neck surgery except

a.Carotid arteries
b.Cranial nerves 7,9,10
c.Phrenic nerve
d.Accessory nerve

Ans-d.Accessory nerve 

512.All are the causes of hypokalemia except

a.Following trauma
b.starvation
c.loss of GIT secretions
d.All of the above

Ans-d.All of the above