What is the site of origin of moros reflex?

What is the site of origin of moros reflex?
a. Cerebellum
b. Semicircular canals
c. Neck proprioception
d. Basal ganglia

A patient after undergoing thoracotomy complains of severe pain. He can be managed by -
a) Intercostal cryoanalgesia
b) I.V fentanyl
c) Oral morphine
d) Oral brufen

Local anaesthesia causing methemoglobinemia -
a) Procaine
b) Prilocaine
c) Etiodicaine
d) Ropivacaine

Patient with mitral stenosis is having surgery tomorrow. There is some liver compromise. Which of the following inhalational agent is preferred -
a) Halothane
b)Enflurane
c) Xenon
d) Sevoflurane