Lab 4 Flashcards
Origin of Pronator Teres
- Humeral Head – Medial epicondyle of humerus
- Ulnar Head – Coronoid process of ulna
Insertion of Pronator Teres
Middle of Lateral Radius
Action of Pronator Teres
Pronation of forearm
Flexion of elbow
Nerve Supply of Pronator Teres
Median Nerve
OIAN of Pronator Teres
Origin - Humeral Head – Medial epicondyle of humerus, Ulnar Head – Coronoid process of ulna
Insertion - Middle of lateral radius
Action - Pronation of forearm
- Flexion of elbow
Nerve Supply - Median nerve
Origin of Flexor Carpi Ulnaris
- Humeral Head: Medial epicondyle of humerus
- Ulnar Head: Olecranon process and proximal posterior ulna
Insertion of Flexor Carpi Ulnaris
Pisiform, hook of hamate, base of fifth metacarpal
Action of Flexor Carpi Ulnaris
Flexion of Wrist, Ulnar deviation of wrist
Nerve Supply of Flexor carpi ulnaris
Ulnar nerve
OIAN of Flexor Carpi Ulnaris
Origin
- Humeral Head: Medial epicondyle of humerus
- Ulnar Head: Olecranon process and proximal posterior ulna
Insertion
- Pisiform
- Hook of hamate
- Base of 5thmetacarpal
Action - Flexion of wrist
- Ulnar deviation of wrist
Nerve Supply - Ulnar nerve
Origin of Palmaris Longus
Medial epicondyle of humerus
Insertion of Palmaris Longus
Palmar aponeurosis
- Flexor retinaculum
- Bases of proximal phalanges
Action of Palmaris Longus
Flexion of wrist
Nerve Supply of palmaris Longus
Median Nerve
OIAN of Palmaris Longus
Origin - Medial epicondyle of humerus
Insertion
- Palmar aponeurosis
- Flexor retinaculum
- Bases of proximal phalanges
Action - Flexion of wrist
Nerve Supply - Median nerve
Origin of Flexor Carpi Radialis
Medial epicondyle of humerus
Insertion of Flexor Carpi Radialis
Base of 2nd and 3rd metacarpals
Action of Flexor Carpi Radialis
Flexion of wrist, radial deviation of wrist
Nerve Supply of Flexor Carpi Radialis
Median Nerve
OIAN of Flexor Carpi Radialis
Origin - Medial epicondyle of humerus
Insertion - Base of 2nd and 3rd metacarpals
Action - Flexion of wrist, Radial deviation of wrist
Nerve Supply - Median nerve
Origin of Flexor Digitorum Superficialis
- Medial epicondyle of humerus
- Coronoid process of ulna
- Proximal anterior surface of radius
Insertion of Flexor Digitorum Superficialis
Middle Phalanges of digits 2-5
Action of Flexor Digitorum Superficialis
Flexion of wrist
Flexion of digits 2-5 at MCP and PIP joints
Nerve Supply Flexor Digitorum Superficialis
Median Nerve
OIAN of Flexor Digitorum Superficialis
Origin
- Medial epicondyle of humerus
- Coronoid process of ulna
- Proximal anterior surface of radius
Insertion - Middle phalanges of digits 2-5
Action - Flexion of wrist
- Flexion of digits 2-5 at MCP and PIP joints
Nerve Supply - Median nerve
Origin of Pronator Quadratus
Distal anteromedial ulna
Insertion of Pronator Quadratus
Distal Anterolateral Radius
Action of Pronator Quadratus
Pronation of forearm
Nerve Supply of Pronator Quadratus
Median Nerve
OIAN of Pronator Quadratus
Origin - Distal anteromedial ulna
Insertion - Distal anterolateral radius
Action - Pronation of forearm
Nerve Supply - Median nerve
Origin of Flexor Pollicis Longus
Anterior surface of radius, interosseous membrane
Insertion of Flexor Pollicis Longus
Base of distal phalanx of digit 1 (thumb)
Action of Flexor Pollicis Longus
Flexion of thumb at IP joint
Nerve supply of Flexor Pollicis Longus
Median Nerve
OIAN of Flexor Pollicis Longus
Origin - Anterior surface of radius
- Interosseous membrane
Insertion - Base of distal phalanx of digit 1
Action - Flexion of thumb at IP joint
Nerve Supply - Median nerve
Origin Flexor Digitorum Profundus
Proximal Surface of ulna
Insertion of Flexor Digitorum Profundus
Base of distal phalanges of digits 2-5
Action of Flexor Digitorum Profundus
- Flexion of wrist
- Flexion of digits 2-5 at MCP, PIP and DIP joints
Nerve Supply of Flexor Digitorum Profundus
Digits 2-3: median nerve
- Digits 4-5: ulnar nerve
OIAN of Flexor Digitorum Profundus
Origin - Proximal surface of ulna
Insertion - Base of distal phalanges of digits 2-5
Action - Flexion of wrist
- Flexion of digits 2-5 at MCP, PIP and DIP joints
Nerve Supply - Digits 2-3: median nerve
- Digits 4-5: ulnar nerve
Origin of Extensor Carpi Radialis Longus:
Lateral supracondylar ridge
- Lateral epicondyle of humerus
Insertion of Extensor Carpi Radialis Longus:
Base of 2nd metacarpal
Action of Extensor Carpi Radialis Longus:
Extension of wrist
- Radial deviation of wrist
Nerve Supply Extensor Carpi Radialis Longus:
radial nerve
OIAN of Extensor Carpi Radialis Longus:
Origin - Lateral supracondylar ridge
- Lateral epicondyle of humerus
Insertion - Base of 2nd metacarpal
Action - Extension of wrist
- Radial deviation of wrist
Nerve Supply - Radial nerve
Origin of Extensor Carpi Radialis Brevis:
Lateral epicondyle of humerus
Insertion of Extensor Carpi Radialis Brevis:
Base of 3rd Metacarpal
Action of Extensor Carpi Radialis Brevis:
Extension of wrist
Nerve supply Extensor Carpi Radialis Brevis:
Deep branch of radial nerve
OIAN of Extensor Carpi Radialis Brevis:
Origin - Lateral epicondyle of humerus
Insertion - Base of 3rd metacarpal
Action - Extension of wrist
Nerve Supply - Deep branch of radial nerve
Origin of Extensor Digitorum
Lateral epicondyle of humerus
Insertion of Extensor Digitorum
Extensor Expansion of digits 2-5
Action of extensor digitorum
- Extension of wrist
- Extension of digits 2-5 at MCP joints
Nerve supply of Extensor Digitorum
deep branch of radial nerve
OIAN of Extensor Digitorum
Origin - Lateral epicondyle of humerus
Insertion - Extensor expansion of digits 2-5
Action - Extension of wrist
- Extension of digits 2-5 at MCP joints
Nerve Supply - Deep branch of radial nerve
Origin of Extensor Digit Minimi
Lateral epicondyle of humerus
Insertion of Extensor Digit Minimi
extensor expansion of digit 5
Action of Extensor Digit Minimi
Extension of wrist
Extension of digit 5 at MCP joint
Nerve Supply of Extensor Digit Minimi
deep branch of radial nerve
OIAN of Extensor Digit Minimi
Origin - Lateral epicondyle of humerus
Insertion - Extensor expansion of digit 5
Action - Extension of wrist
- Extension of digit 5 at MCP joint
Nerve Supply - Deep branch of radial nerve
Origin of Extensor Carpi Ulnaris:
Humeral Head – Lateral epicondyle of humerus
- Ulnar Head – Proximal posterior ulna
Insertion of Extensor Carpi Ulnaris:
Base of 5th Metacarpal
Action of Extensor Carpi Ulnaris:
Extension of wrist
Ulnar deviation of wrist
Nerve Supply of Extensor Carpi Ulnaris:
Deep branch of radial nerve
OIAN of Extensor Carpi Ulnaris:
Origin
- Humeral Head – Lateral epicondyle of humerus,
- Ulnar Head – Proximal posterior ulna
Insertion - Base of 5th metacarpal
Action - Extension of wrist
- Ulnar deviation of wrist
Nerve Supply - Deep branch of radial nerve
Origin of Supinator
- Lateral epicondyle of humerus
- Annular and radial collateral ligaments
- Supinator crest of ulna
Insertion of Supinator
Lateral surface of proximal radius
Action of Supinator
Supination of forearm
Nerve Supply of Supinato
Deep branch of radial nerve
OIAN of Supinator
Origin
- Lateral epicondyle of humerus
- Annular and radial collateral ligaments
- Supinator crest of ulna
Insertion - Lateral surface of proximal radius
Action - Supination of forearm
Nerve Supply - Deep branch of radial nerve
Origin of Extensor Indicis
- Posterior ulna
- Adjacent interosseous membrane
Insertion of Extensor Indicis
Extensor expansion of digit 2
Action of extensor indicis
- Extension of wrist
- Extension of digit 2 at MCP joint
Nerve Supply of Extensor Indicis
Deep branch of radial nerve
OIAN of Extensor Indicis
Origin - Posterior ulna
- Adjacent interosseous membrane
Insertion - Extensor expansion of digit 2
Action - Extension of wrist
- Extension of digit 2 at MCP joint
Nerve Supply - Deep branch of radial nerve
Origin of Abductor Pollicis Longus:
Posterior surfaces of radius and ulna
- Interosseous membrane
Insertion of Abductor Pollicis Longus:
Base of 1st Metacarpal
Action of Abductor Pollicis Longus:
Radial deviation of wrist
- Abduction of thumb at CMC joint
Nerve supply of Abductor Pollicis Longus:
deep branch of radial nerve
OIAN Abductor Pollicis Longus:
Origin - Posterior surfaces of radius and ulna
- Interosseous membrane
Insertion - Base of 1st metacarpal
Action - Radial deviation of wrist
- Abduction of thumb at CMC joint
Nerve Supply - Deep branch of radial nerve
Origin of Extensor Pollicis Brevis:
Posterior radius, interosseous membrane
Insertion of Extensor Pollicis Brevis:
Base of proximal phalanx of digit 1
Action of Extensor Pollicis Brevis:
Radial deviation of wrist
Extension of thumb at MCP joint
Nerve Supply of Extensor Pollicis Brevis:
Deep branch of radial nerve
OIAN of Extensor Pollicis Brevis:
Origin - Posterior radius
- Interosseous membrane
Insertion- Base of proximal phalanx of digit 1
Action - Radial deviation of wrist
- Extension of thumb at MCP joint
Nerve Supply - Deep branch of radial nerve
Origin of Extensor Pollicis Longus:
Middle posterior ulna and interosseous membrane
Insertion of Extensor Pollicis Longus:
Base of distal phalanx of digit 1
Action of Extensor Pollicis Longus:
- Radial deviation of wrist
- Extension of thumb at IP joint
Nerve Supply Extensor Pollicis Longus:
deep branch of radial nerve
OIAN of Extensor Pollicis Longus:
Origin - Middle posterior ulna and interosseous membrane
Insertion - Base of distal phalanx of digit 1
Action - Radial deviation of wrist
- Extension of thumb at IP joint
Nerve Supply - Deep branch of radial nerve