Letter
R
Word
Real
Component
Roots
Resource HubAll Years (1st-Final)All UniversitiesBrachial Plexus
Brachial Plexus Mnemonic for MBBS (Easy to Remember)
The brachial plexus is one of the most tested and most diagram-heavy topics in 1st Year MBBS Anatomy. Five components, three trunks, six divisions, three cords, and five terminal branches -- the structure is logical, but the sequence slips under exam pressure. This mnemonic fixes the order in under a minute.
Reviewed for MBBS 1st Year Anatomy. Updated 2026.
Open in GeckoMed appThe Brachial Plexus Mnemonic
"Real Teenagers Drink Cold Beer"
| Letter | Word | Component |
|---|---|---|
| R | Real | Roots |
| T | Teenagers | Trunks |
| D | Drink | Divisions |
| C | Cold | Cords |
| B | Beer | Branches |
Letter
T
Word
Teenagers
Component
Trunks
Letter
D
Word
Drink
Component
Divisions
Letter
C
Word
Cold
Component
Cords
Letter
B
Word
Beer
Component
Branches
This gives you the five components of the brachial plexus in the exact anatomical sequence, from origin at the spinal cord to the terminal nerves of the upper limb.
What Each Letter Stands For
| Component | Detail |
|---|---|
| Roots | C5, C6, C7, C8, T1 (the ventral rami that form the plexus) |
| Trunks | Upper (C5 + C6), Middle (C7), Lower (C8 + T1) |
| Divisions | Each trunk divides into an anterior and a posterior division (six divisions total) |
| Cords | Lateral, Posterior, Medial (named by relation to the axillary artery, second part) |
| Branches | Five terminal nerves: Musculocutaneous, Axillary, Radial, Median, Ulnar |
Component
Roots
Detail
C5, C6, C7, C8, T1 (the ventral rami that form the plexus)
Component
Trunks
Detail
Upper (C5 + C6), Middle (C7), Lower (C8 + T1)
Component
Divisions
Detail
Each trunk divides into an anterior and a posterior division (six divisions total)
Component
Cords
Detail
Lateral, Posterior, Medial (named by relation to the axillary artery, second part)
Component
Branches
Detail
Five terminal nerves: Musculocutaneous, Axillary, Radial, Median, Ulnar
Secondary Aid: Terminal Branches (MARMU)
For the five terminal branches in order, use MARMU:
| Letter | Nerve | Cord of Origin |
|---|---|---|
| M | Musculocutaneous | Lateral cord |
| A | Axillary | Posterior cord |
| R | Radial | Posterior cord |
| M | Median | Lateral + Medial cords |
| U | Ulnar | Medial cord |
Letter
M
Nerve
Musculocutaneous
Cord of Origin
Lateral cord
Letter
A
Nerve
Axillary
Cord of Origin
Posterior cord
Letter
R
Nerve
Radial
Cord of Origin
Posterior cord
Letter
M
Nerve
Median
Cord of Origin
Lateral + Medial cords
Letter
U
Nerve
Ulnar
Cord of Origin
Medial cord
How to Use These Mnemonics Effectively
Pair the mnemonic with the diagram. Do not just recite "Real Teenagers Drink Cold Beer" passively. Draw the brachial plexus from scratch as you recall each component. Anatomy examiners award marks for labelled diagrams, and the act of drawing reinforces recall far more than reading alone.
Use MARMU to check your diagram, not to start it. Once drawn, run MARMU down the terminal branch column as a self-check. Any missing nerve becomes immediately visible, and the habit of verifying work under exam conditions is worth building early.
How This Topic Appears in MBBS University Exams
The brachial plexus is tested in 1st Year MBBS Anatomy theory and practical viva across all seven major Indian universities in GeckoMed's network. Common question formats include:
- "Describe the formation, relations, and branches of the brachial plexus." (10 marks, LEQ -- a labelled diagram is expected)
- "Write a short note on the brachial plexus." (5 marks, SEQ)
- "Enumerate the terminal branches of the brachial plexus." (3 marks, SAQ)
Nerve injury questions also draw on brachial plexus knowledge (for example, radial nerve palsy causing wrist drop, or Erb's palsy at C5-C6), particularly in Final Year General Surgery and General Medicine viva.
Frequently Asked Questions
What is the best mnemonic for the brachial plexus in MBBS Anatomy?
"Real Teenagers Drink Cold Beer" is the most widely used mnemonic for recalling the five components in order: Roots, Trunks, Divisions, Cords, and Branches. Pair it with MARMU (Musculocutaneous, Axillary, Radial, Median, Ulnar) for the terminal branches.
In which MBBS year is the brachial plexus tested?
The brachial plexus is a core 1st Year Anatomy topic appearing in theory papers and practical viva. Nerve injury knowledge (Erb's palsy, Klumpke's palsy, wrist drop) is also applied in Final Year surgery and medicine papers.
Do I need to draw the brachial plexus in the exam?
Yes. A labelled diagram is expected in most 10-mark long essay answers and carries separate marks. Practise the diagram alongside the mnemonic rather than reciting it in isolation.
Try Gecko Med
Practice smarter with the app behind these resources.
Revise high-yield topics, solve previous year questions, and keep your MBBS prep moving in one place.