Topic Overview

Mnemonics – Chapter: Arm

1. Muscles of the Anterior Compartment

👉 Mnemonic: “BBC”

• B → Biceps brachii

• B → Brachialis

• C → Coracobrachialis
  (All supplied by the Musculocutaneous nerve)

2. Heads of Biceps Brachii

👉 Mnemonic: “Short from Coracoid, Long from Glenoid”

• Short head → Coracoid process

• Long head → Supraglenoid tubercle

3. Heads of Triceps Brachii

👉 Mnemonic: “Long-Lateral-Medial”

• Long head → Infraglenoid tubercle of scapula

• Lateral head → Posterior humerus above spiral groove

• Medial head → Posterior humerus below spiral groove

4. Contents of Cubital Fossa (from Medial → Lateral)

👉 Mnemonic: “My Brother Throws Rocks”

• M → Median nerve

• B → Brachial artery

• T → Tendon of biceps brachii

• R → Radial nerve

5. Boundaries of Cubital Fossa

👉 Mnemonic: “Base, Medial, Lateral, Roof, Floor”

• Base (superior) → Line joining epicondyles

• Medial → Pronator teres

• Lateral → Brachioradialis

• Roof → Skin, fascia, bicipital aponeurosis

• Floor → Brachialis (medially), Supinator (laterally)

6. Branches of Brachial Artery

👉 Mnemonic: “Many People Prefer Sharing Ice-cream Radially”

• M → Muscular branches

• P → Profunda brachii artery

• P → Nutrient artery to humerus

• S → Superior ulnar collateral artery

• I → Inferior ulnar collateral artery

• R → Radial and ulnar terminal branches

7. Branches of Profunda Brachii Artery

👉 Mnemonic: “Delightful Radial Muscular Middle”

• D → Deltoid (ascending) branch

• R → Radial collateral artery

• M → Middle collateral artery

• M → Muscular branches to triceps

8. Structures Passing from Medial to Lateral in Cubital Fossa (Surface)

👉 Mnemonic: “Veins Nerves Arteries Tendons”

• V → Median cubital vein (superficial)

• N → Median nerve

• A → Brachial artery (and its branches)

• T → Tendon of biceps

9. Branches of Radial Nerve in Arm

👉 Mnemonic: “3 Muscles, 3 Cutaneous, 1 Articular”

• Muscular: 3 → Long, lateral, medial heads of triceps + Anconeus

• Cutaneous: Posterior cutaneous nerve of arm, lower lateral cutaneous nerve of arm, posterior cutaneous nerve of forearm

• Articular: Elbow joint branch

10. Important Reflexes

👉 Mnemonic: “BBC TV”

• Biceps reflex → C5–C6

• Triceps reflex → C7–C8

• V (verify) segmental integrity