Test 3 Flashcards
Elbow flexor
forearm supinator
Biceps
Elbow extensor
Triceps
The origin of the Brachialis is the ____ and the Insertion of the Brachialis is the ____
Coronoid process of ulna and
Lower ½ of anterior humerus
Origin
•Upper 2/3 of lateral supracondylar ridge of humerus
Insertion
•Styloid Process of radius
Brachioradialis
Origin
•Lateral epicondyle of humerus
Insertion
•Olecranon process & upper posterior ulna
Anconeus
Origin
•Medial epicondyle of humerus & coronoid process of ulna
Insertion
•Middle, lateral surface of radius
Pronator Teres
Origin
•Medial, anterior surface of distal ulna
Insertion
•Lateral, Anterior surface of distal radius
Pronator Quadratus
Origin •Lateral epicondyle of humerus •Crest of ulna Insertion •Anterior, lateral surface of upper radius
Supinator
Origin
•Lateral supracondylar ridge
Insertion
•Base of 2ND MC
Extensor Carpi Radialis Longus
Origin
•Lateral epicondyle
Insertion
•Base of 3RD MC
Extensor Carpi Radialis Brevis
Origin
•Lateral epicondyle
Insertion
•Base of 5TH MC
Extensor Carpi Ulnaris
Origin
•Lateral epicondyle
Insertion
•Bases of middle & distal phalanges of 2nd -5th
Extensor Digitorum
Origin •Post. surface of distal ulna •Interosseous membrane Insertion •Extensor digitorum tendon of 2ND MC
Extensor Indicis
Origin
•Lateral epicondyle
Insertion
•Base of the proximal phalanx of 5th finger
Extensor Digiti Minimi
Origin
•Medial Epicondyle
Insertion
•Bases 2nd & 3rd MCP
Flexor Carpi Radialis
Origin
•Medial Epicondyle
Insertion
•Flexor retinaculum & palmar aponeurosis
Palmaris Longus
Origin •Medial Epicondyle •Posterior, upper ulna Insertion •Pisiform •Hook of hamate •Base of 5th metacarpal
Flexor Carpi Ulnari
Origin •Medial epicondyle •Coronoid process •Upper radius Insertion •Middle phalanges of 2nd-5th fingers
Flexor Digitorum Superficialis
Origin
Medial, upper ulna
Insertion
•Base of distal phalanges 2-5
Flexor Digitorum Profundus
Origin
•Posterior radius & ulna
Insertion
•Base of 1st MC
Abductor Pollicis Longus
Origin
•Posterior, middle ulna
Insertion
•Distal phalanx of pollex
Extensor Pollicis Longus
Origin
•Posterior radius
Insertion
•Proximal phalanx of pollex
Extensor Pollicis Brevis
Origin
•Anterior radius
Insertion
•Distal phalanx of pollex
Flexor Pollicis Longus
Origin •Flexor retinaculum •Trapezium •scaphoid Insertion •Proximal phalanx of pollex
Abductor Pollicis Brevis
Origin •Flexor Retinaculum (superficial head) •Trapezium, Trapezoid & Capitate (deep head) Insertion •Proximal phalanx of pollex
Flexor Pollicis Brevis
Origin
•Flexor Retinaculum & Trapezium
Insertion
•1st MC
Opponens Pollicis
Origin •Capitate •2nd & 3rd MC Insertion •Base of proximal phalanx of pollex
Adductor Pollicis
Origin
–Surfaces of the flexor digitorum profundus tendons
•Insertion
–Extensor aponeurosis on dorsal surface of phalanges
Lumbricals
Origin
–Adjacent sides of all metacarpals
•Insertion
–Base of the proximal phalanx of 2nd – 4th digits
Dorsal Interossei
–Base of metacarpals 1,2,4,5
•Insertion
–Base of proximal phalanx of related digit
Palmer Interossei
Origin
–Pisiform and tendon of FCU
•Insertion
–Base of proximal phalanx of 5th digit, ulnar surface
Abductor Digiti Minimi
Origin
–Hook of hamate and flexor retinaculum
•Insertion
–Base of proximal phalanx of 5th digit, palmar surface
Flexor Digiti Minimi Brevis
Origin
–Hook of hamate and flexor retinaculum
•Insertion
–Shaft of 5th MCP, ulnar surface
Opponens Digiti Minimi
Elbow movements
Flexion
•Extension
FOREARM movements
Supination
•Pronation
- Flexion
- Abduction
- Radial Deviation
- Adduction
- Ulnar Deviation
WRIST: Movements
Scaphoid •Lunate •Triquetrum •Pisiform •Trapezium •Trapezoid •Capitate •Hamate
Carpal Bones (Wrist Bones)
UCL injury in overhead throwers
•Repetitive microtrauma
•Leads to rupture of the ligament
•Ulnar nerve ‘snapping’ over epicondyle
UCL Injury
Strong, triangular shaped ligament
•Runs from the medical epicondyle of the humerus → coronoid process of the ulna and olecranon process
Ulnar Collateral Ligament (UCL)
First surgery performed 1974 by Dr. Frank Jobe
•Dodgers pitcher Tommy John – missed 1 year of baseball for rehab
•Tendon grafted from forearm or leg
Tommy John’ Surgery
Named after French urologist (1861)
•4cm long
•Depression between pisiform and hook of the hamate
•Roof formed by pisohamate ligament
•Prolongataion of FCU/part of origin for Abd Dig Min
Tunnel of Guyon
Ulnar neuropathy aka handlebar palsy •Nerve becomes compressed in tunnel of Guyon due to •Hyperextension of wrist •Compression of wrist •More common in long distance rides
Cycler’s Palsy
•Action
–Adduction of digits 1,2,4,5
•Innervation
–Ulnar
Palmer Interossei
Action
•Flexion (H/U)
Innervation
•Musculocutaneous
Brachialis
Action
•Elbow flexion (H/U)
Innervation
•Radial
Brachioradialis
Action
•Elbow extension (H/U)
Innervation
•Radial
Anconeus
Action
•Pronation (R/U)
Innervation
•Median
Pronator Teres
Action
•Pronation (R/U)
Innervation
•Median
Pronator Quadratus
Action
•Supination (R/U)
Innervation
•Radial
Supinator
Action •Extension (R/C) •Radial deviation (R/C) Innervation •Radial
Extensor Carpi Radialis Longus
Action •Extension (R/C) •Radial deviation (R/C) Innervation •Radial
Extensor Carpi Radialis Brevis
Action •Extension (R/C) •Ulnar deviation (R/C) Innervation •Radial
Extensor Carpi Ulnaris
Action
•Extension of 2nd- 5th phalanges (MCP, PIP, DIP)
Innervation
•Radial
Extensor Digitorum
Action •Extension of 2nd finger (MCP) •Adduction of 2nd finger Innervation •Radial
Extensor Indicis
Action
•Extension of 5TH finger
Innervation
•Posterior interosseous
Extensor Digiti Minimi
Action •Flexion (R/C) •Radial deviation (R/C) Innervation •Median
Flexor Carpi Radialis
Action
•Flexion (R/C)
Innervation
•Median
Palmaris Longus
Action •Flexion (R/C) •Ulnar deviation (R/C) Innervation •Ulnar
Flexor Carpi Ulnari
Action
•Flexion of 2nd-5th fingers (MCP & PIP)
•Flexion (R/C)
Innervation
Flexor Digitorum Superficialis
Action •Flexion of 2nd-5th fingers (MCP, PIP, DIP) •Flexion (R/C) Innervation •1st/2nd : Median •3rd/4th: Ulnar
Flexor Digitorum Profundus
Action •Abducts pollex •Extends pollex Innervation •Radial
Abductor Pollicis Longus
Action
•Extends pollex
Innervation
•Radial
Extensor Pollicis Longus
Action
•Extends pollex
Innervation
•Radial
Extensor Pollicis Brevis
Action
•Flexes pollex
Innervation
•Median
Flexor Pollicis Longus
Action
•Pollex abduction
Innervation
•Median
Abductor Pollicis Brevis
Action
•Pollex flexion
Innervation
•Median & Ulnar
Flexor Pollicis Brevis
Action
•Pollex opposition
Innervation
•Median
Opponens Pollicis
Action
•Pollex adduction
Innervation
•Ulnar
Adductor Pollicis
Action –Extend 2nd – 5th MCPS –Flex 2nd – 5th IPs •Innervation –2nd and 3rd digits – median
Lumbricals
•Action
–Abduct the 2nd – 4th MCP joints
•Innervation
–Ulnar
Dorsal Interossei
•Action
–Abduct the 5th digit
•Innervation
–Ulnar
Abductor Digiti Minimi
•Action
–Flexion of the 5th digit, assists in opposition
•Innervation
–Ulnar
Flexor Digiti Minimi Brevis
•Action
–Opposition of the 5th digit
•Innervation
–Ulnar
Opponens Digiti Minimi