Anatomy of the Peripheral Nervous System

[blank_start]Schwann[blank_end] cells produce myelin in the peripheral nervous system

All motor neurons are ...

All Sensory Neurons are ...

Multipolar neurons tend to have cell bodies in the [blank_start]CNS[blank_end] and axons in the [blank_start]PNS[blank_end] whereas Unipolar neurons tend to have cell bodies in the [blank_start]PNS[blank_end] and axons in the [blank_start]PNS[blank_end]

Name the function of all 12 cranial nerves (answer = sensory, motor OR both) Olfactory nerve = [blank_start]Sensory[blank_end] Optic nerve = [blank_start]Sensory[blank_end] Oculomotor nerve = [blank_start]Motor[blank_end] Trochlear nerve = [blank_start]Motor[blank_end] Trigeminal nerve = [blank_start]Both[blank_end] Abducens nerve = [blank_start]Motor[blank_end] Facial nerve = [blank_start]Both[blank_end] Vestibulocochlear nerve = [blank_start]Sensory[blank_end] Glossopharyngeal nerve = [blank_start]Both[blank_end] Vagus nerve = [blank_start]Both[blank_end] Spinal accessory nerve = [blank_start]Motor[blank_end] Hypoglossal nerve = [blank_start]Motor[blank_end]

In the CNS, a collection of axons surrounded by connective tissue and blood vessels is called a [blank_start]tract[blank_end], however in the PNS this is called a [blank_start]nerve[blank_end].

What is the only Cranial Nerve to arise from the Pons?

The Spinal Accessory Nerve (CNXI) arises from the ...

Which of the following Cranial Nerves arise from the medulla? (3 answers)

Spinal Nerves are tiny pieces of nervous tissue that join the nerve roots to the rami. They are only found in the [blank_start]intervertebral foramen[blank_end] of a vertebrae.

Label the structures of the PNS shown below.

The Anterior Rootlets/Roots protruding from a vertebrae contain only [blank_start]Motor[blank_end] nerve fibres. The Posterior Rootlets/Roots protruding from a vertebrae contain only [blank_start]Sensory[blank_end] nerve fibres.

With respect to the Autonomic Nervous System, spinal nerves contain ...

All of the skeletal muscles supplied with motor innervation from a single spinal nerve is called a [blank_start]Myotome[blank_end]

The Male nipple is in which dermatome?

The Umbilicus is in which dermatome?

The Upper Limb comprises which six dermatomes?

In terms of vertebral grey matter, lateral horns are only found between [blank_start]T1[blank_end] and [blank_start]L2[blank_end], due to [blank_start]Sympathetic[blank_end] innervation between these vertebral levels

Which part of the body is the only part to be innervated directly by presynaptic sympathetic axons?

Parasympathetic nerves arise from Cranial Nerves ...

Only the [blank_start]Sacral[blank_end] Spinal Nerves transmit Parasympathetic axons.