Nerves - Anatomy Practical

Front 1

Spinal Accessory Nerve XI

Back 1

Innervation: sternocleidomastoid & trapezius muscles

Front 2

Hypoglossal Nerve XIII

Back 2

Innervation: muscles of the tongue

Front 3

Vagus Nerve X

Back 3

Innervation: both motor and sensory fibers to the visceral body organs

Front 4

Infraorbital Nerve

Back 4

Innervation: lower eyelid and upper lip

Front 5

Phrenic Nerve

Back 5

Innervation: diaphragm muscle to control breathing

Front 6

Suprascapular Nerve

Back 6

Innervation: supraspinatus and infraspinatus muscles

Anatomical Pathway: suprascapular notch of the scapula

Front 7

Subscapular Nerves

Back 7

Innervation: subscapularis, teres major, & latissimus dorsi muscles

Front 8

Axillary Nerve

Back 8

Innervation: deltoid and teres minor muscles

Front 9

Musculocutaneous Nerve

Back 9

Innervation: coracobrachialis, biceps brachii, and brachialis muscles

Front 10

Radial Nerve

Back 10

Innervation: triceps brachii muscles and all muscles of the posterior forearm, sensation to lateral posterior surface of the hand

Anatomical Pathway: radial groove of the humerus bone

Pathology: when damaged can't draw wrist up. referred to as wrist drop

Front 11

Median Nerve

Back 11

Innervation: sensation to the lateral anterior hand

Anatomical Pathway: carpal tunnel

Pathology: carpal tunnel syndrome is generally associated with compression of this nerve

Front 12

Ulnar Nerve

Back 12

Innervation: sensation to the anterior and posterior medial hand

Anatomical Pathway: behind the medial epicondyle of the humerus

Pathology: superficial and thus often exposed to contact stimulation and pain in the "funny bone"

Front 13

Long Thoracic Nerve

Back 13

Innervation: serratus ventralis muscle

Pathology: when this nerve is damaged the scapula wings out as it can no longer be held against the body wall

Front 14

Sciatic Nerve

Back 14

Innervation: biceps femoris, semitendinosus, and semimembranosus muscles

Anatomical Pathway: greater sciatic notch of the pelvis

Front 15

Tibial Nerve

Back 15

Innervation: gastrocnemius, soleus, and plantaris muscles

Front 16

Common Fibular Nerve

Back 16

Innervation: anterior muscles of the leg (not the thigh)

Pathology: when damaged muscles in the posterior leg are no longer antagonized by contracting muscles from the anterior leg resulting in an unsynchronized foot drop with each step

Front 17

Femoral Nerve

Back 17

Innervation: rectus femoris, vastus medialis, vastus lateralis, and vastus intermedialis muscles

Front 18

Lateral Cutaneous Nerve

Back 18

Innervation: sensation to the lateral thigh

Front 19

Obturator Nerve

Back 19

Innervation: sensation to the medial thigh

Anatomical Pathway: obturator foramen of the hip

Front 20

Saphenous Nerve

Back 20

Innervation: sensation to the medial leg and foot

Front 21

Sympathetic trunk and ganglia

Back 21

Innervation: distributes fibers through the ramus communicans for sympathetic influence into spinal nerves