Musculoskeletal System
Types of Joints
Muscles of Coracoid Process
| Mnemonic | Muscle |
|---|---|
| Chronic | Coracobrachialis |
| Back | Biceps :: short head |
| Pain | Pectoralis minor |
Muscles of Greater Tubercle
- Supraspinatus
- Infraspinatus
- Teres minor
- Pectoris major
Muscles of Lesser Tubercle
- Latissimus dorsi
- Subscapularis
- Teres major
Rotator Cuff Muscles & Nerves {SITS}
| Muscle | Nerve | Functions |
|---|---|---|
| Supraspinatus | Suprascapular nerve | Abduction |
| Infraspinatus | Suprascapular nerve | Lateral rotation |
| Teres minor | Axillary nerve | Lateral rotation |
| Subscapularis | Subscapular nerve | Medial rotation |
Muscles of Anterior Compartment of Forearm
Superficial Layer
| Muscle | Nerve |
|---|---|
| Pronator teres | Median nerve |
| Palmaris longus | Median nerve |
| Flexor carpi radialis | Median nerve |
| Flexor carpi ulnaris | Ulnar nerve |
| Flexor digitorum superficialis | Median nerve |
Deep Layer
| Muscle | Nerve |
|---|---|
| Flexor digitorum profundus :: 1st & 2nd | Median nerve |
| Flexor digitorum profundus :: 3rd & 4th | Ulnar nerve |
| Flexor pollicis longus | Median nerve |
| Pronator quadratus | Median nerve |
Muscles of Posterior Compartment of Forearm
Superficial Layer
| Muscle | Nerve |
|---|---|
| Anconeus | Radial nerve |
| Brachioradialis | Radial nerve |
| Extensor carpi radialis longus | Radial nerve |
| Extensor carpi radialis brevis | Radial nerve |
| Extensor carpi ulnaris | Radial nerve |
Intermediate Layer
| Muscle | Nerve |
|---|---|
| Extensor digitorum | Radial nerve |
| Extensor digiti minimi | Radial nerve |
Deep Layer
| Muscle | Nerve |
|---|---|
| Extensor indicis | Radial nerve |
| Extensor pollicis longus | Radial nerve |
| Extensor pollicis brevis | Radial nerve |
| Abductor pollicis longus | Radial nerve |
| Supinator | Radial nerve |
Intrinsic Muscles of Hand
| Muscle | Nerve |
|---|---|
| Thenar muscle | Median nerve |
| Hypothenar muscle | Ulnar nerve |
| Lumbrical muscle :: 1st & 2nd | Median nerve |
| Lumbrical muscle :: 3rd & 4th | Ulnar nerve |
| Dorsal interossei | Ulnar nerve |
| Ventral interossei | Ulnar nerve |
Carpal Bones
| Mnemonic | Bone |
|---|---|
| Some | Scaphoid bone |
| Lovers | Lunate bone |
| Take | Triquetrum bone |
| Positions | Pisiform bone |
| That | Trapezium bone |
| They | Trapezoid bone |
| Cannot | Capitate bone |
| Handle | Hamate bone |
Muscles of Thigh
Medial Compartment
| Muscle | Nerve |
|---|---|
| Adductor magnus | Obturator nerve |
| Adductor brevis | Obturator nerve |
| Adductor longus | Obturator nerve |
| Gracilis | Obturator nerve |
| Obturator externus | Obturator nerve |
Anterior Compartment
| Muscle | Nerve |
|---|---|
| Iliopsoas | Femoral nerve |
| Pectineus | Femoral nerve |
| Quadriceps femoris | Femoral nerve |
| Sartorius | Femoral nerve |
Posterior Compartment
| Muscle | Nerve |
|---|---|
| Biceps femoris | Sciatic nerve |
| Semitendinosus | Sciatic nerve |
| Semimembranosus | Sciatic nerve |
Muscles Forming Pes Anserinus Tendon
| Muscle | Compartment |
|---|---|
| Gracilis | Medial |
| Sartorius | Anterior |
| Semitendinosus | Posterior |
Muscles of Leg
Lateral Compartment
| Muscle | Nerve |
|---|---|
| Fibularis | Superficial fibular nerve |
Anterior Compartment
| Muscle | Nerve |
|---|---|
| Tibialis anterior | Deep fibular nerve |
| Extensor hallucis longus | Deep fibular nerve |
| Extensor digitorum longus | Deep fibular nerve |
Posterior Compartment
| Muscle | Nerve |
|---|---|
| Popliteus | Tibial nerve |
| Plantaris | Tibial nerve |
| Gastrocnemius | Tibial nerve |
| Soleus | Tibial nerve |
| Tibialis posterior | Tibial nerve |
| Flexor hallucis longus | Tibial nerve |
| Flexor digitorum longus | Tibial nerve |
Tarsal Bones
- Calcaneus bone
- Talus bone
- Navicular bone
- Cuneiform bone
- Cuboid bone
Contents of Tunnels & Canals
| Passage | Covering | Contents |
|---|---|---|
| Cubital tunnel | - | Ulnar nerve |
| Guyon canal | - | Ulnar nerve Ulnar artery |
| Carpal tunnel | Flexor retinaculum | Median nerve Flexor digitorum superficialis Flexor digitorum profundus Flexor pollicis longus |
| Tarsal tunnel | Flexor retinaculum | Tibialis posterior Flexor digitorum longus Tibial artery Tibial nerve Flexor hallucis longus |
Microscopic Classification of Bone
- Woven bone
- Lamellar bone