Clinically Relevant Anatomy of the Spinal Nerves

Overview of the spinal nerve. (anterior = top of picture)

The first dorsal webspace of the foot is innervated by the [blank_start]deep fibular nerve[blank_end] and exists as the [blank_start]L5[blank_end] dermatome

The dermatome in which the heel is situated is the ... dermatome.

The postcentral gyrus is also known as the [blank_start]primary somatosensory cortex[blank_end] The precentral gyrus is also known as the [blank_start]primary motor cortex[blank_end]

The main sensory pathway of the body occurs via which white matter column of the spinal cord?

Using the Foerster dermatome map below, label the dermatomes of the arm.

The Musculocutaneous nerve supplies the [blank_start]Biceps Brachii[blank_end] and originates from the [blank_start]C5 and C6[blank_end] spinal nerves.

Posteriorly, the neck and scalp skin is mainly supplied by the [blank_start]posterior[blank_end] rami of spinal nerves [blank_start]C2[blank_end]-C8

Label the named cutaneous nerve innervation of the neck.

On the previous diagram, the point at which the sensory nerves of the cervical plexus converge is called...

Pain from the myocardium (e.g. during heart attack) typically refers to which dermatomes of the arm?

Match the following Myotomes to their test actions and relevant muscles: C5: Action = [blank_start]Shoulder Abduction[blank_end] Muscle = [blank_start]Deltoid[blank_end] C6: Action = [blank_start]Elbow Flexion[blank_end] Muscle = [blank_start]Biceps Brachii[blank_end] C7: Action = [blank_start]Elbow Extension[blank_end] Muscle = [blank_start]Triceps Brachii[blank_end] C8: Action = [blank_start]Finger Flexion[blank_end] Muscle = [blank_start]Flexor Digitorum Superficialis[blank_end] T1: Action = [blank_start]Finger Abduction[blank_end] Muscle = [blank_start]Dorsal Interossei[blank_end]

Clinical Testing of Spinal Reflexes: Biceps Reflex tests [blank_start]C5 & C6[blank_end] spinal nerves Triceps Reflex tests [blank_start]C7[blank_end] spinal nerve Knee Jerk Reflex tests [blank_start]L3[blank_end] spinal nerve Ankle Jerk reflex tests [blank_start]S1[blank_end] spinal nerve

The muscles of mastication (Masseter, etc) are mainly innervated by which cranial nerve?

The Diaphragm is innervated by the phrenic nerve, which arises from which 3 spinal nerves?

Taste: Which cranial nerve allows taste on the anterior 2/3 of the tongue [blank_start]Facial Nerve (CNVII)[blank_end] Which cranial nerve allows taste on the posterior 1/3 of the tongue [blank_start]Glossopharyngeal Nerve (CNIX)[blank_end] Which cranial nerve allows taste at the epiglottis? [blank_start]Vagus Nerve (CNX)[blank_end]

Erector Spinae and Transversospinalis muscle groups are supplied by the ... rami of spinal nerves

Axillary Nerve arises from ...

Musculocutaneous Nerve arises from ...

Median Nerve arises from ...

Radial Nerve arises from

Ulnar Nerve arises from ...

All Interossei muscles are supplied by the [blank_start]ulnar[blank_end] nerve

Sciatic Nerve arises from ...

Name the nerves which supply the cutaneous areas shown below.