1. Nerves

2. Brachial Plexus
Roots C5 C6 C7 C8 T1

3. Brachial Plexus Trunks C5 C6 C7 C8 T1 Upper Trunk Middle Trunk Lower

4. Brachial Plexus Divisions
Eash trunk gives anterior and posterior divisions (behind middle ⅓ of the clavicle ) C5 C6 C7 C8 T1

5. Brachial Plexus
Cords C5 C6 C7 C8 T1
Posterior
Cord

6. Brachial Plexus
Cords C5 C6 C7
Medial
Cord C8 T1
Posterior
Cord

7. Brachial Plexus Cords Lateral Cord Medial Cord Posterior Cord C5 C6 C7

8. Brachial Plexus Lateral Cord Branches Lateral pectoral
Lateral root of Median n.
Musculocutaneous

9. Medial Cutaneous n. of Forearm
Brachial Plexus
Medial Cord Branches
Medial Pectoral
Medial Root of Median
Medial Cutaneous n. of Forearm
Ulnar

10. Brachial Plexus Posterior Cord Branches Upper Subscapular
Lower Subscapular
Axillary
N. To Latissimus Dorsi
Radial

11. Brachial Plexus
Upper Trunk Branches
Suprascapular
Nerve to Subclavius

12. Brachial Plexus Roots Branches C5 C6 C7 C8 T1 Root of Phrenic
N. To Rhomboids C5 C6
N. to Serratus Anterior C7 C8 T1

13. Brachial Plexus
Injuries
1.Complete Injury

14. Brachial Plexus
Injuries
2.Erb’s Injury

15. Brachial Plexus
Injuries
3.Klumpke’s Injury

16. Musculocutaneous Nerve
Mixed nerve from the lateral cord
Course:
Lareral: the 3rd part of Axillary artery
Leaves the axilla by piercing the coracobrachialis m.
Then descends downwards between biceps and brachialis.
Finally continues as lateral cutaneous nerve of the forearm
Branches: Coracobrachialis, Biceps & Brachialis

17. Radial Nerve Arm C5,6,7,8,T1 Course & Relations:
Lies behind the upper part of the brachial artery between it & the 2 heads of triceps
long head of Triceps
Brachial artery

18. Radial Nerve Arm C5,6,7,8,T1 Course & Relations:
After leaving the spiral groove: The nerve pierces the lateral intermuscular septum to enter the anterior compartment on the lateral side of the arm

19. Radial Nerve Forearm C5,6,7,8,T1 Course & Relations:
In front of the lateral epicondyle it gives the posterior interosseous
& continues downwards as the superficial radial nerve.
Supinator

20. Radial Nerve Forearm C5,6,7,8,T1 Course & Relations:
Nerve winds around the lateral side of the radius to reach the back of the hand cross over the anatomical snuff box

21. Formed by: branches from medial & lateral cords (C6, 7, 8 & T1)
Median Nerve
Formed by: branches from medial & lateral cords (C6, 7, 8 & T1)
Brachial
artery
Crosses the brachial artery

22. Median Nerve Course Lies medial to biceps, Biceps Median nerve
Ulnar nerve

23. In the arm: gives no branches
Median Nerve
In the arm: gives no branches
Course
Lies medial to biceps,
anterior to brachialis & triceps
Brachialis
Median nerve
Triceps
Ulnar nerve
Triceps

24. Median Nerve Course Passes bet 2 heads of pronator teres
deep to flexor digitorum superficialis
Between Flexor Pollicis Longus & Flexor Digitorum Superficialis
Lies on Flexor Digitorum Profundu
deep to flexor retinaculum

25. Medial ½ Flexor Digitorum Profundus
Median Nerve
Branches
Supplies flexors of the forearm
Flexor Carpi- Ulnaris
Medial ½ Flexor Digitorum Profundus
Except

26. Except Adductor Pollicis
Abductor Pollicis Brevis
Median Nerve
Opponens Pollicis
Branches
Flexor Pollicis Brevis
All Thenar Ms.
Except Adductor Pollicis
1st & 2nd Lumbricals

27. Palmar Cutaneous Nerve of Palm
Median Nerve
Branches
Palmar Cutaneous Nerve of Palm

28. Palmar surface of lateral 3 ½ digits
Median Nerve
Branches
Palmar surface of lateral 3 ½ digits

29. Median Nerve
Injury
Ape Hand Deformity

30. Terminal branch of the medial cord of the brachial plexus
Ulnar Nerve
Terminal branch of the medial cord of the brachial plexus

31. posterior compartment of the arm (behind the medial epicondyle )
Ulnar Nerve
NO BRANCHES IN ARM
Passes through
posterior compartment of the arm (behind the medial epicondyle )
Ulnar nerve
Median nerve

32. Ulnar Nerve Enters between the heads of flexor carpi ulnaris
Flexor Digitorum Profundus

33. In the Forearm Supplies:
Ulnar Nerve
In the Forearm Supplies:
Flexor Carpi ulnaris
Medial ½ Flexor Digitorum Profundus

34. Superficial Branch above Retinaculum
Ulnar Nerve
Ends by dividing into:
1. Superficial Branch
Superficial Branch above Retinaculum
1 ½ fingers

35. Ulnar Nerve Superficial Branch Deep Branch Ends by dividing into:
All Hypothenar
muscles
Adductor Pollicis
All Interossei
3rd & 4th Lumbricals

36. Sciatic Nerve Roots It arises from: L4 – S3 Sciatic nerve L4 L5 S1 S2

37. Inferior border of Piriforms to Lower 1/3 of the thigh
Sciatic Nerve
Extent
Piriforms muscle
Sciatic nerve
Inferior border of Piriforms to Lower 1/3 of the thigh

38. Leaves pelvis through Greater Sciatic foramen
Sciatic Nerve
Course & Branches
Leaves pelvis through Greater Sciatic foramen
Sciatic nerve

39. Sciatic Nerve Adductor Magnus Biceps femoris Semitendinosis
Semimembranosus

40. Sciatic Nerve Divides into: Tibial nerve Common Peroneal nerve

41. Supplies Superficial Posterior Compartment of leg
Sciatic Nerve
Tibial
Supplies Superficial Posterior Compartment of leg
Tibial
Supplies Muscles of the foot

42. Supplies Anterior Compartment of leg
Sciatic Nerve
Common Peroneal
Lateral Sural nerve
Common Peroneal
Supplies Anterior Compartment of leg