Neuroscience

Question 1

What is being described?

- a clear, colourless body fluid found within the tissue that surrounds the brain and spinal cord of all vertebrates

Answer 1

CSF (cerebrospinal fluid)

Question 2

A tumour on the pituitary gland can press on the optic chiasm (crossing over of the optic nerves), which can result in visual deficiency. To operate on the pituitary gland, how would they gain access?

Answer 2

through the nasal cavity, through the sphenoid sinus and through the sphenoid bone