Upper limb Flashcards
How many compartments in upper arm?
- Anterior compartment
- Posterior compartment
which muscles are in the upper arm Anterior compartment?
- Bicep brachii
- Coracobrachialis
- Brachialis
Bicep Brachi OIIA?
O: Long head - supraglenoid tubercle of scapula
Short head - Corocoid process of scapula
I: Radial Tuberosity
I: musculocutaneous nerve
A: Flexion + supination forearm
Flex + abduction shoulder
Coracobrachialis OIIA
O: Corocoid process
I: medial side humerus
I: musculocutaneous nerve
A: flexion at shoulder
weak adduction
Brachialis OIIA
O: Anterior aspect of humerus
I: Ulna tuberosity
I: musculocutaneous nerve
A: flexion forearm
Tricep Brachii OIIA
O: Lond head - Infraglenoid tubercle
medal head - Superior to radial groove on humerus
Lateral head - inferior to radial grove on humerus
I: olecranon
I: radial nerve
A: Elbow extension
extension + adduction shoulder
How many compartment in forearm?
- Anterior compartment - superficial
- Anterior compartment - intermediate
- Anterior compartment - deep
- Posterior compartment - Superficial
- Posterior compartment - deep
Forearm muscles in Anterior compartment - SUPERFICIAL
- pronator teres
- Flexi carpi ulnaris
- Palmaris longus
- flexor carpi radialis
Forearm muscles in Anterior compartment - intermediate
- Flexor digitorum superficialis
Forearm muscles in Anterior compartment - DEEP
- Flexor digitorum profundus
- Flexor Pollicis longus
- Pronator quadratus
Forearm muscles in posterior compartment - SUPERFICIAL
- Brachioradialis
- Extensor Carpi radialis longus
- Extensor Carpi radialis brevis
- Extensor digitorum
- Extensor digit minimi
- Extensor carpi ulnaris
- Anconceus
Forearm muscles in posterior compartment - DEEP
- Supinator
- Extensor pollicis longus
- Extensor pollicis brevis
- Abductor pollicis longus
- Extensor indicis
Pronator Teres OIIA
O: Humeral head - medial epicondyle
Ulnar head - Coronoid process of ulna
I: Mid shaft radius laterally
I: Median nerve
A: Pronation forearm
Flexor Carpi Radialis OIIA
O: Medial epicondyle
I: Base of 2nd + 3rd Metacarpal
I: Median nerve
A: Flexion + Abduction wrist
Palmaris Longus OIIA
O: Medial Epicondyle
I: Palmar Aponeurosis + Flexor retinaculum
I: Median nerve
O: Flexion wrist
Flexor Carpi Ulnaris OIIA
O: Humeral head - medial epicondyle
ulnar head - olecranon
I: Pisiform, hamate, base of 5th metacarpal
I: ulnar nerve
A: Flexion + Adduction wrist
Flexor Digitorum superficialis OIIA
O: Medial Epicondyle
oblique line of radius
I: Base of 2nd, 3rd, 4th, 5th middle phalanges
I: Median nerve
A: Flexion at PIP joint and MCP joint
Flexor Digitorum Profundus OIIA
O: Ulna + interosseous membrane
I: Distal phalanges of 2nd, 3rd, 4th + 5th digit
I: Lateral side (2nd + 3rd digit) AIN, Medial side (4th + 5th digit) ulnar nerve
A: Flexion of DIP joint, MCP joint + Wrist
Flexor Pollicis Longus OIIA
O: Anterior radius and adjacent Interosseous membrane
I: Base distal phalanx of thumb
I: AIN
A: Flexion of thumb (IP joint + MCP joint)
Pronator Quadratus OIIA
O: Anterior surface of ulna
I: Anterior surface of radius
I: AIN
A: Pronates forearm
Brachioradialis OIIA
O: Lateral Supracondylar ridge
I: Distal radius (Before the radial styloid)
I: Radial nerve
A: Flexion of elbow (supination and pronation)
Extensor Carpi Radialis Longus OIIA
O: Lateral supracondylar ridge
I: Base 2nd Metacarpal bone
I: Radial nerve
A: Extension + Abduction of wrist
Extensory Carpi Radialis Brevis OIIA
O: Lateral epicondyle
I: Base of 2nd + 3rd metacarpal
I: PIN (Deep branch of radial nerve)
A: Extension + abduction wrist
Extensor Digitorum OIIA
O: Lateral epicondyle
I: Extensor hood on 2nd, 3rd, 4th, 5th digit
I: PIN
A: Extension of fingers (+ wrist)
Extensor Digit Minimi OIIA
O: Lateral Epicondyle
I: Extensor hood of 5th digit
I: PIN
A: Extension 5th digit + wrist
Extensor Carpi ulnaris OIIA
O: Lateral epicondyle
I: base of 5th metacarpal
I: PIN
A: Extension + Adduction wrist
Anconeus OIIA
O: Lateral Epicondyle
I: Olecranon (lateral part)
I: Radial nerve
A: Extension forearm
(stabilises elbow during pronation and supination)
Supinator OIIA
O: Lateral Epicondyle + ulna
I: Lateral proximal radius
I: PIN (Deep branch of radial nerve)
A: supinates forearm
Extensor Pollicis Longus OIIA
O: Mid Posterior ulnar + interosseous membrane
I: Distal phalanx of thumb
I: PIN
A: Extension of thumb (IP, MCP, CMC joints)
Extensor Pollicis Brevis OIIA
O: Mid posterior radius + adjacent interosseous membrane
I: Base of proximal phalanx of thumb
I: PIN
A: Extension thumb at MCP and CMC joint
Abductor Pollicis Longus OIIA
O: radius + ulna + adjacent interosseous membrane
I: Lateral base 1st metacarpal
I: PIN
A: Abducts thumb
Extensor Indicis OIIA
O: distal posterior ulna + adjacent interosseous membrane
I: extensor hood 2nd digit
I: PIN
A: Extends 2nd digit
