Penicillins are

In which of the following conditions is insertion of a nasogastric tube contraindicated?

A) Patient having a gag reflex B) Patient with facial fractures C) Patient awake and alert D) All of the above

The copy of neural signals about an intended movement sent by the motor cortex to the cerebellum is known as the:

A. Motor output copy. B. Cortico-cerebellar copy. C. Efference copy. D. Sensorimotor copy.