Clinically Oriented Anatomy 5Th Edition Moore & Dalley

Front 1

Subcostal Nerve

Back 1

O: T12 Anterior Ramus

Course: Courses along inferior border of the 12th rib; lateral cutaneous branch descends over iliac crest

Distribution: Lateral Cutaneous branch supplies skin of hip region interior to iliac crest and anterior to greater trochanter.

Front 2

Iliohypogastric Nerve

Back 2

O: L1 Ventral Primary Ramus

Muscular Branches: Provides partial innervation to transverse abdominis and internal abdomina oblique muscles.

Cutaneous Branches: Supply innervation to posterolateral gluteal region and abdomen above the pubis

Front 3

Ilioinguinal Nerve

Back 3

O: L1 Ventral Primary Ramus

MM Branches: Partial innervation to internal abdominal oblique muscle

Cutaneous Branches: Supply Innervation to superomedial thigh of skin over genitals

Front 4

Genitofemoral Nerve

Back 4

O: L1 and L2 Ventral Primary Rami.

Pierces psoas major

Genital Branch: Motor supply of cremaster muscle

Femoral Branch: Cutaneous supply to skin over femoral triangle

Front 5

Obturator Nerve

Back 5

O: Derived from Anterior Division of L2, L3, L4, Ventral Primary Rami

Front 6

Anterior Branch of Obturator Nerve

Back 6

Exits obturator foramen just above obturator externus

Cutaneous supply: to medial thigh

Branches to hip joint and femoral artery

Motor supply: to adductor longus, gracilis and adductor brevis

Front 7

Posterior Branch of Obturator Nerve

Back 7

Pierces obturator externus

Motor supply: to obturator externus, adductor magnus and possibly adductor brevis

Articular branch to knee joint

Front 8

Accessory Obturator Nerve

Back 8

O: Derived from the anterior divisions of L3, L4 VPR

Articular branch to hip joint

Motor supply: to pectineus

Present in about 8% of people

Front 9

Femoral Nerve

Back 9

O: Derived from the posterior divisions of L2, L3, L4 VPR

Lies superficial to and between iliacus and psoas major muscles

In the femoral triangle, lies lateral to the femoral artery

Innervates: iliacus, sartorius, pectineus, quadriceps femoris,rectus femoris, vastus lateralis, vastus medialis,vastus intermedius

Anterior cutaneous branches (L2, L3): supply anterior thigh

Front 10

Saphenous nerve

Back 10

Branch of Femoral Nerve.
Cutaneous: (L3, L4) supplies skin of medial patella, medial leg and medial foot in the leg, saphenous nerve travels with great saphenous vein

Front 11

Lateral Femoral Cutaneous Nerve

Back 11

O: derived from the posterior divisions of L2, L3 VPR

Passes under inguinal ligament to enter the thigh lateral to the femoral triangle
Cutaneous supply: to anterolateral thigh

Front 12

What is entrapmentof the lateral femoral cutaneous nerve?

Back 12

Meralgia Paresthetica

Front 13

Lumbrosacral Plexus

Back 13

Portion of ventral Primary Ramus of L4.
Ventral Primary Ramus of L5.

Front 14

Root Level of VPR to quadratus femoris and gemellus inferior

Back 14

L4, L5, S1 anterior division

Front 15

Root Level of VPR to obturator internus and gemellus superior

Back 15

L5, S1, S2 anterior division

Front 16

Root Level of VPR to piriformis

Back 16

S1, S2 posterior division

Front 17

Root Level of VPR of Superior Gluteal
Innervation to muscles:

Back 17

L4, L5, S1 posterior division
Innervates gluteus medius, gluteus minimus, and tensor fascia lata
Enters gluteal region superior to piriformis

Front 18

Root Level of VPR of Inferior Gluteal
Innervation to muscle:

Back 18

L5, S1, S2 posterior division
Supplies innervation to gluteus maximus
Enters gluteal region inferior to piriformis

Front 19

Root Level of VPR of Posterior femoral cutaneous

Back 19

S1, S2 posterior divsion
S2, S3 anterior division
Enters gluteal region inferior to piriformis, medial to sciatic nerve and descends superficial to long head of biceps

Front 20

Root Level of VPR to Tibial portion of the Sciatic Nerve

Back 20

L4, L5, S1, S2, S3 anterior division

Front 21

Root Level of VPR of Common Peroneal portion of the Sciatic Nerve

Back 21

L4, L5, S1, S2 posterior division

Front 22

Root Level of VPR of Pudendal Nerve

Back 22

S2, S3, S4

Front 23

Root Level of VPR to levator ani, coccygeus and sphincter ani externus

Back 23

S4

Front 24

Root Level of VPR of Pelvic splanchnic nerves

Back 24

S2, S3, S4

Front 25

Cutaneous supply of Posterior Femoral Cutaneous Nerve

Back 25

Supplies skin of perineum, lower buttock, and posterior thigh to upper leg

Front 26

Sciatic Nerve Origin
Innervation of Muscles

Back 26

O: Derived from anterior division of L4, L5, S1, S2, S3 VPR
Enters gluteal region inferior to piriformis
Divides into tibial and common peroneal nerves usually in thigh.
Innervates: Long head of biceps femoris, Semitendinosus, Semimembranosus, Ischial head of adductor magnus,Gastrocnemius, Plantaris, Soleus, Popliteus,
Tibialis Poseterior, Flexor Digitorum Longus, and Flexor Hallucis Longus

Hint 26

Travels deep to popliteal fossa lateral to politeal vessels.
Descends deep to soleus on intermuscular septum.
Divides into medial and lateral plantar nerves under flexor retinaculum.

Front 27

Medial Sural Cutaneous Nerve

Back 27

O: Arises from tibial nerve.
Descends between two heads of gastrocnemius.
Travels with saphenous vein.
Cutaneous Supply: Arise from tibial nerve and supply skin of heel.

Front 28

Sural Nerve

Back 28

O: Formed by the junction of the sural communicating branch of the common peroneal nerve.
Cutaneous Supply: Skin of lower posterolateral leg, lateral foot, and 5th toe.

Front 29

Medial Plantar Nerve

Back 29

O: Begins under flexor retinaculum.
Divides into proper plantar digitals and three common plantar digital nerves.

Front 30

Innervations by Medial Plantar Nerve

Back 30

Innervates Flexor Hallucis Brevis, Abductor hullucis, Flexor digitorum brevis, and 1st Lumbrical

Front 31

Cutaneous Suppply by Medial Plantar Nerve

Back 31

Medial Sole of foot.
Plantar surfaces and nail beds of 1st, 2nd, 3rd, and medial side of 4th toes

Front 32

Lateral Plantar Nerve

Back 32

O: Smaller terminal branch of tibial nerve
Divides into deep and superficial branches
NN I: Inntervates Quadratus plantae and the Lateral three Lumbricals, Plantar and Dorsal Interossei.

Front 33

Lateral Plantar Nerve Innervations

Back 33

Quadratus plantae, adductor hallucis, flexor digiti minimi brevis, abductor digiti minimi, lumbricals 2-4, and interossei

Front 34

Cutaneous supply of Lateral Plantar Nerve

Back 34

Lateral Sole of Foot.
Plantar Surfaces and nail beds of 5th toe and lateral side of 4th toe.

Front 35

Origin of Common Peroneal (Fibular) Nerve

Back 35

Derived from the posterior division of L4, L5, S1, S2 VPR
Fairly superficial as it travels around neck of fibula
Gives off muscular, articular, and cutaneous branches before it divides into deep and superficial peroneal nerves

Front 36

Common Peroneal (Fibular) Nerve Innervation

Back 36

Innervates short head of biceps femoris

Front 37

Cutaneous Supply of Common Peroneal (Fibular) Nerve

Back 37

Supply skin to upper lateral leg

Front 38

Deep Peroneal Nerve Origin

Back 38

Travels around neck of fibula to descend in anterior compartment of leg with anterior tibial vessels
Divides into lateral terminal and medial terminal branches

Front 39

Deep Peroneal Nerve Muscular Innervations

Back 39

Tibialis Anterior, Extensor Hallucis Longus, Extensor Digitorum Longus, and Peroneus Tertius

Front 40

Innervation of Lateral Terminal Branch of Deep Peroneal Nerve

Back 40

Innervates branches to extensor digitorum brevis

Front 41

Cutaneous Supply of Medial Terminal Branch of Deep Peroneal Nerve

Back 41

Adjacent sides of great and 2nd toes.

Front 42

Superficial Peroneal (Musculocutaneous) Nerve

Back 42

Travels in the lateral compartment of the leg.
Divides into medial dorsal cutaneous and lateral dorsal cutaneous nerves

Front 43

Innervations of the Superficial Peroneal(Musculocutaneous) Nerve

Back 43

Innervates Peroneus longus and Peroneus brevis

Front 44

Cutaneous Distribution of the Superficial Peroneal (Musculocutaneous) Nerve

Back 44

Lower Lateral leg, lateral ankle, dorsum of foot, medial great toe, lateral 2nd toe, 3rd and 4th toes, and medial 5th toe

Front 45

Pudendal Nerve

Back 45

O: Derived from S2, S3, and S4 VPR
MM Distribution: Muscular branches to perineal muscles, external urethral sphincter, and external anal sphincter.
Cutaneous supply: Sensory to Genitalia