week 2

Question 1

Key genes for eye development

Answer 1

PAX6 - master gene for eye development (activatory)

SHH - orbit seperation

Question 2

vestibulo-ocular reflex

Answer 2

reflex where activation of the vestibular system causes eye movements.
Function if to stabilise images on the retina in response to movements of the head
Disturbance of the reflex - nystagmus
used as a way of testing brainstem - calorific, injection of water into the external acoustic meatus, heat transfer with hair cell activation as a result