Neuronal Cell Types

Question 1

What are myelin sheaths formed from?

Answer 1

Schwann cells (PNS)
Oligodendrocytes (CNS)

Question 2

What is a tract?

Answer 2

A bundle of axons that have one function

Question 3

What are nuclei?

Answer 3

Discreet localised collection of grey matter in the CNS

Question 4

What are collection of neuronal cell bodies in the PNS?

Answer 4

Ganglion

Question 5

What are three types of neuron and where are they found

Answer 5

Bipolar-retinal nerve fibres and olfactory mucosa
Multipolar-motor and interneurons
Pseudounipolar-sensory

Question 6

What are three types of nerve fibres found in the cortex?

Answer 6

Commissural fibres connect the two halves of the cerebrum (corpus callosum)
Association fibres connect different parts of the cortex together
Projection fibres connect the cortex to the subcortical centres, passing through the internal capsule.