Unit 3 Forearm Flashcards
Radius Structure
- Neck
- Interosseous boarder
- Interosseous membrane
- Radial head
Interosseous Boarder
- Against Ulna
Interosseous Membrane
- Binds radius & ulna
Radial Fracture Locations
- Distal aspect
Radial Injury
- FOOSH
- Dinner fork deformity
Ulna Structure
- Trochlear notch
- Radial notch
- Olecranon
- Ulnar tuberosity
- Interosseous boarder & membrane
- Styloid process
- Ulna head
Radial Notch
- Articulate with radius
- Proximal radioulnar joint
Olecranon
- Point part of elbow
- Posterior
Flexor Muscle Innervation
- Median
- Ulnar
Extensor Muscle Innervation
- Radial
Extensor Muscles
- Supinator
- Extensor carpi radials
- Extensor digitorum
- Extension digiti minimi
- Extensor carpi ulnaris
Extensor Carpi Ulnaris
- Hand adduction
Extension Digiti Minimi
- Pinky extension
Extensor Carpi Radials
- Hand abduction
Extensor Muscle Origin
- Lateral epicondyle
Extensor Pollicis Muscles
- Thumb extension
- Metacarpalphalangeal or carpometacarpal joints
Flexor Muscle Origin
- Medial epicondyle
Superficial Muscles
- Pronator Teres
- Flexor carpi radials
- Palmaris longus
- Flexor capri ulnaris
- Brachioradialis
Pronator Teres
- Forearm Pronation
Flexor Carpi Radialis
- Wrist flexion
- Hand abduction
Palmaris Longus
- Wrist flexion
Flexor Carpi Ulnaris
- Wrist Flexion
- Hand adduction
Brachioradialis
- Elbow flexion
Median Nerve Innervation
- Pronator teres
- Palmaris longus
- Flexor carpi radials
Ulnar Nerve Inneration
- Flexor carpi ulnaris
Radial Nerve Innervation
- Brachioradialis
Middle & Deep Muscles
- Flexor digitorum superficialis
- Flexor digitorum profundus
- Pronator quadratus
Flexor Digitorum Superficialis
- Proximal interphalangeal flexion (PIP)
Flexor Digitorum Profundus
- Distal interphalangeal flexion (DIP)
Pronator Quadratus
- Forearm Pronation
Extensor Indices
- Extension of index finger
Flexor Retinaculum
- Holds tendon in place
- Thick band of fascia
Pronantor Teres Syndrome
- Median nerve squished by pronator teres
- Weak wrist flexion
- No thumb interphalangeal flexion
Epicondylitis
- Inflammation of tendons
- Medial/lateral epicondyle
Radial Nerve Split
- Posterior interosseous nerve
- Superficial branch
Posterior Interosseous Nerve
- Deep motor
- Pierce through supinator
Superior Interosseous Nerve
- Sensory information
- Forearm & hand
Median Nerve Pathway
- Anterior medial epicondyle
- Pronator teres
- Flexor digitorum profundus & superficialis
Ulnar Nerve Pathway
- Posterior medial epicondyle
- Pronator teres