Muscular system

1. Muscles of
Chest
Muscles of posteri
or compartment of
forearm(S)

3. Brachioradialis
Suprachondylar ridge of humer
us
Radius at stylood process
Flex at elbow
Radial nerve

4. • Extensor carpi radialis longus a
nd breves
• ECRL from suprachondylar ridge a
nd ECRB from letral epichondyle
• Metacarpal 2nd and 3rd
• Extend and abduct the wrist
• Radial nerve

5. • Extensor digitorum
• Letral epichondyle
• Splits into four tendons for extenso
r hood of each finger
• Extend the fingers at MCP and IP j
oint
• Radial nerve

6. •Extensor digiti minimi
• Letral epichondyle
• Extensor hood of little finger
• Extend the little finger at MCP a
nd IP joint
• Radial nerve

7. • Extensor carpi ulnaris
• Letral epichondyle
• Base of metacarpal 5th
• Extend and adduction the wrist
• Radial nerve

8. •Anconeus
• Letral epichondyle
• Letral and posterior surface of olec
ranon process
• Extend and stabilise the elbow and
abduct the ulna during Pronation
• Radial nerve