Peripheral nerves summary Upper limbs and lower limbs Lab and OSCE

1. Prepared By Reviewed By Dr. Ahmed Elzainy
R
AbdulRahman
Identifications Mention
Upper & Lower
Limbs Nerves
Root Value Branches
Muscles Supplied Effect of Injury
PE IPHERAL NERVES

2. Upper Limb Root Value Branches Muscles Supplied ⋮ At Least 3 of Each
↯
↯ Effect of Injury
Axillary C5-C6
- Anterior branch.
- Posterior branch.
- Cutaneous N. of arm.
- Deltoid.
- Teres Minor.
DelTa
- Flat shoulder.
- Sensory loss over lower ½ of deltoid.
Musculo-
cutaneous
C5-C7
- Muscular branches⋮
- Lateral cutaneous N.
- Biceps.
- Brachialis.
- Coracobrachialis.
B
B
C
- Wasting of biceps deformity.
- Sensory loss over lateral side of
forearm.
Radial C5-T1
- Muscular branches⋮
- Posterior cutaneous N. of arm.
- Lower lateral cutaneous N. of arm.
- Posterior cutaneous N. of forearm.
- Posterior interosseous N.
- Superficial terminal branch.
- Triceps.
- Brachioradialis.
- Lateral Fibers of Brachialis.
- Extensor Carpi Radialis Longus.
T
B
L
- Wrist & fingers drop.
- Sensory loss over lower posterior part
of arm, lateral ⅔ of dorsum of hand &
lateral 3 ½ fingers up to middle
phalanges.
Median C5-T1
- Muscular branches⋮
- Anterior interosseous N.
- Palmar cutaneous.
- Pronator Teres.
- Palmaris Longus.
- Flexor Carpi Radialis.
- Flexor Digitorum Superficialis.
In hand:
- abductor pollicis brevis, flexor pollicis brevis,
opponens pollicis & 1st & 2nd lumbricals.
PurPleCaR
- Ape hand.
- Sensory loss over lateral ​3½ digits
including their nail beds & thenar area.
Ulnar C7-T1
- Muscular branches⋮
- Articular to elbow joint.
- Palmar & Dorsal cutaneous branches.
- Flexor Carpi Ulnaris.
- Medial Part of Flexor Digitorum Profundus.
- Partial Claw hand.
- Sensory loss of medial ⅓ of palmer &
dorsal aspects of hand & medial 1 ½
fingers.

3. Lower Limb Root Value Branches Muscles Supplied ⋮ At Least 3 of Each
↯
↯ Effect of Injury
Femoral L2-L4
- Muscular branches⋮
- Intermediate cutaneous N.
- Medial cutaneous N.
- Saphenous N.⤵
[sensation to anteromedial, &
posteromedial surface of leg.]
- Quadriceps Femoris.
- Pectineus.
- Sartorius.
- Iliacus.
K
P
Sa
- Wasting of quadriceps & Loss of knee
extension.
- Sensory loss over anteromedial side of
thigh & medial side of leg & foot.
Sciatic L4-S3
- Muscular branches⋮
- Articular to hip joint.
- Medial & Lateral popliteal Ns.
- Semimembranosus.
- Biceps Femoris.
- Semitendinosus.
- Ischial part of Adductor Magnus.
S
P
S
S
- Foot drop.
- Sensory loss below knee Except area
supplied by saphenous N.
Medial
Popliteal
- Tibial -
L4-S3
- Muscular branches⋮
- Sural N.
- Articular to knee joint.
- Gastrocnemius.
- Popliteus.
- Soleus.
- Plantaris.
G
P
S
- Dorsiflexion & eversion of foot.
- Sensory loss over sole of foot.
Lateral
Popliteal
- Common
Peroneal -
L4-S2
- Lateral cutaneous N. of calf.
- Sural communicating N.
- Articular to knee joint.
- Foot drop
- Sensory loss over anterior & lateral
sides of leg & dorsum of foot except
areas supplies by sural & saphenous Ns.
Anterior
Tibial
L4-S2
- Muscular branches⋮
- Cutaneous branches.
All front of leg muscles & extensor digitorum brevis. - Drop foot with high steppage gait.
Posterior
Tibial
L4-S3
- Muscular branches⋮
- Cutaneous branches.
- Articular to ankle joint.
- Flexor Hallucis Longus.
- Flexor Digitorum Longus.
- Tibialis Posterior.
- Deep part of Soleus.
FuLLHDTv
- Weak planter flexion.

4. Median
Runs with brachial A.
Radial
Through triangular space
Anterior
1
2
1 2
Ulnar
Descends behind
medial epicondyle
Axillary
Through quadrangular space

5. Radial
Anterior
Median
Middle
Ulnar
Medial

6. Radial
In Radial groove
Axillary on
Surgical neck of humerus
-
Posterior
1
2
1 2

7. Radial
Posterior
1
1

8. Femoral
Anterior Tibial
Anterior
1
2
1 2

9. Sciatic
Lateral popliteal
Medial popliteal
Posterior
1
2
1 2

10. Posterior Tibial
Posterior

11. Anterior
1
2
1 2
Ulnar
Median
Runs with brachial A.
Descends behind
medial epicondyle
Medial
Middle

12. Musculocutaneous
Exists between
Brachialis & Biceps Ms.
Anterior
1
1

13. Axillary
Attached to Deltoid M.
Radial
In Radial groove
Posterior
1
2
1 2

14. Ulnar
Median
Musculocutaneous
Anterior
1
2
1 2

15. Axillary
Radial
Posterior
1
1 2
2

16. Sciatic
Divided in this specimen
Femoral
PosteriorAnterior
1
2
1 2

17. Medial popliteal
Lateral popliteal
Posterior
2
1
1 2
Posterior Tibial

18. Femoral
Anterior Tibial
Anterior
1
2
1 2

19. Sciatic
Lateral popliteal
Medial popliteal
Posterior
1
2
1 2

20. Identify nerve marked as (Y), mention its root
value and deformity resulting from its injury.
Y= Radial nerve.
Root value: C5,6,7,8, &T1.
Deformity: wrist drop.
Identify nerve marked as (X), name
THREE muscles supplied by it.
X= Tibial nerve.
Supplies: Plantaris+ Popliteus+
Superficial part of the soleus.
Identify nerve marked as (Y), name Two
muscles supplied by it.
Y- femoral nerve Root (L2, 3, 4).
Two muscles supplied:
- quadriceps femoris & sartorius
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