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Brachial Plexus Anatomy: A Comprehensive Overview, Cheat Sheet of Anatomy

Maharashtra University of Health SciencesAnatomy

A concise overview of the brachial plexus, including its formation, branches, and clinical significance. It covers the roots, trunks, divisions, cords, and major nerves of the brachial plexus, along with potential injuries and associated clinical presentations such as klumpke's paralysis. Useful for medical students and healthcare professionals seeking a quick review of brachial plexus anatomy and related pathologies. It also includes diagrams and key points for easy understanding and retention, making it a valuable resource for exam preparation and clinical practice. A valuable resource for medical students and healthcare professionals.

Typology: Cheat Sheet

2024/2025

Available from 10/25/2025

aliya-71
aliya-71 🇮🇳

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bg1
Brachial plexus
·
Plexus
is
the
collection
of
herves
.
Dorsal
Ramus
!
Sventual
Ramus
A
plexus
is
formed
by
Ventral
Rami
(sin
:·
Ramus)
of
corresponding
Spinal
nerve
.
Thorass
do
not
have
plexus
so
the
Ventral
Ramus
of
the
thoracic
spinal
neve
is
called
as
intercostal
neve
.
Ro
Trunk
Div
.
Cords
Nerve
G-
·
Middle
T
.
Ventral
-
-
Medial
-
T-
((8
,
Ti)
pf3
pf4

Partial preview of the text

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Brachial plexus

· Plexus is the collection

of herves.

Dorsal Ramus !Sventual Ramus A (^) plexus is formed (^) by Ventral^ Rami^ (sin^

:· Ramus) of

corresponding Spinal^ nerve (^). Thorass donot^ have^ plexus so the Ventral Ramus (^) of the thoracic (^) spinal neve is^ called^ as intercostal^ neve. Ro Trunk Div (^). Cords Nerve G- ·

Middle T.

Ventral

      • (^) Medial T- ((8 (^) ,Ti)

Braches from Cord

· Lateral Cord (C, G , G)

Medial Nerve (Cs-T)

1) Lateral Pectoral Nerve

2) Lateral^ Root^ of Median^ Nerve

3) Musculocutanus^ Nerve

· (^) Medial Cord (^) (C , (^) Ti)

1) Medial Pectoral Neve (Cr,^ T,)

  1. Medial Root^ of Median Nerve^ (Co (^) ,Ti) ] Medial^ Cutaneous neve (^) of armT
  2. Unau Nerve^ (G , (^) G , T1) G fibers^ arise^ from Lateral^ Lord · (^) Posterior Cord (^) (Cs-T2) ! & (^) Upper Subscapularis Nerve Good to (^) Subscapularis (p i(6)^
  3. Lower^ Subscapularis Nerve-^ Subscapularis & Teres^ Major
  4. (^) Axillary Nerve-^ >^ Deltoid^ & Teves^ Minor (C, G^ , (8)^ 4)^ Thorcodovsal^ Nerve/Nerve^ to^ Latissmus^ dorsi

5) Radial^ Nerve^ (C-T)

Branches (^) from Roots

  1. C-Dorsal^ Scapular Nerve/Nerve to^ Rhomboid C] (^) Cij , G^ - Long thoracic^ Neve/Nerve to^ Terratus anterior Branches from^ Upper Trunk
  2. (^) Suprascapular Nerve-Supraspinatus & infraspinatus
  3. Nerve^ toJubclavius

ralysis Injury to (^) upper trunk of^ trachial (^) plexus

Nerve root^ involved - C , %

Nerve involved -^ Accillary

Musculocutaneous (^) , Suprascapular, Nerve to subclavius point #umpkiesalysis Injury to the^ lower^ trunk^ of (^) spinal cord

Hyperabduction injuries

  1. Birth injuries Nerve roots^ involved-^ Co (^) , Ty Nerve involved - Medial (^) & Ulnau Nerve Muscle Paralysed
  • ulnar flexors of^ wristI fingers
  • Intrinsic muscle of hand

Patiet Present with-

  • Claw (^) hand
    • (^) Horners syndrome