Anatomy of bachial plexus_UTSAV

953 views

Published on

brachial plexus_UTSAV

Published in: Health & Medicine
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
953
On SlideShare
0
From Embeds
0
Number of Embeds
4
Actions
Shares
0
Downloads
16
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Anatomy of bachial plexus_UTSAV

  1. 1. Dr. Utsav Agrawal
  2. 2.  Brachial plexus is formed by the anterior primary rami of C5,6,7,8 & T1  It consists of roots, trunks, cords, divisions and branches.  A total of 17 branches are given off from the plexus including 2 from roots, 2 from trunks and 13 from cords. Pre-fixed P0st-fixed C5>15% T1<13% C5-6.8 to 12% T1 – 13.4 to22.4 %
  3. 3. The Roots  Contributions from Ventral primary rami of C5, 6,7,8, and T1  May be pre-fixed or post-fixed  Braches from roots – Dorsal scapular nerve Long thoracic nerve
  4. 4. Dorsal scapular nerve  Root value – C5  Innervation – Rhomboideus major and minor  Function - Retraction of scapula
  5. 5. Long thoracic nerve  ‘Nerve of Bell’  Root Value – C5, C6, C7  Innervation – Serratus anterior  Palsy – Winging of scapula - Loss of overhead abduction
  6. 6. The Trunks  Roots from C5 and C6 join to form upper trunk  C7 forms middle trunk  C8 and T1 forms lower trunk  Branches from trunks Suprascapular nerve (C5,C6) Nerve to subclavius (C5,C6) • Each trunk divides to form ventral and dorsal divisions which join to form cords
  7. 7. Cords  Ventral divisions of upper and middle trunks  Lateral cord  Ventral division of lower trunk  Medial cord  Dorsal divisions of all three trunks Posterior cord
  8. 8. Lateral Cord  Root Value – C5, C6, C7  1.> Lateral pectoral  2.> Lateral root of median  3.> Musculocutaneous – biceps, brachialis, coracobrachialis
  9. 9. Medial Cord  Medial Pectoral (C8, T1)  Medial cutaneous nerve of arm (C8, T1)  Medial cutaneous nerve of forearm (C8,T1)  Medial root of median (C8,T1)  Ulnar (C7,8,T1)
  10. 10. Posterior cord  Upper subscapular (C5,6)  Lower subscapular (C5,6)  Thoraco-dorsal (C6,7,8)  Axillary ( C5,6)  Radial (C5,6,7,8,T1)
  11. 11. THANK YOU

×