Forearm Word Doc Flashcards
What muscles are required for radial deviation?
Flexor Carpi Radialis
Extensor Carpi Radialis
Extensor Carpi Radialis Brevis
What muscles are required for ulnar deviation?
Flexor Carpi Ulnaris
Extensor Carpi Ulnaris
Where does the radius articulate with the humerus?
The capitulum, anchored by the annular ring surrounding head of the radius
Where does the ulna articulate with the humerus?
Olecranon
Coronoid process
Trochlear Notch
—-This is a stronger articulation than the radius
Where does the radius articulate at the wrist?
Scaphoid and lunate carpal bones
Which styloid process extends more distally? Radius vs. Ulna
Styloid process of the radius extends more distally
—provides clues for injuries
What is Colles Fracture?
Fx of the styloid process of the radius & proximal displacement
- —palpation would indicate styloid processes at same level
- –scaphoid bone could be damaged too
What nerve is unprotected as it swings around the medial Epicondyle of the humerus
Ulnar Nerve
What two fingers would hurt if the ulnar nerve is palpated aggressively?
Medial two fingers
Median nerves serves as the primary nerve for what group of muscles?
Anterior (Flexor) Compartment of the forearm
Where does the median nerve carry sensory components?
skin of forearm
Hand and Elbow
Wrist joints
Where does the Anterior interosseous nerve arrise and where from?
Branches from Median Nerve near the apex of the cubital fossa
What course does the anterior interosseous nerve take?
Anterior surface of the interosseous membrane
What muscles does the Anterior interosseous nerve innervate
Lateral portion of FDP (Digits 2-3)
Flexor Pollicus Longus
Pronator Quadratus
Palmar Cutaneous branch is associated with what nerve?
Median nerve. Palmar Cutaneous branch are articular branches of the wrist
Where does the Ulnar Nerve Run?
;Posterior to medial epicondyle of the humerus
- Deep to Flexor Carpi Ulnaris
- Along Flexor Digitorum Profundus
Where does the Ulnar Nerve run in relation to the Ulnar Artery?
Ulnar nerve runs MEDIALLY to the ulnar artery
Where do the muscular branches of the ulnar nerve go?
Flexor Carpi Ulnaris
FDP (medial part)
——Articular branches to elbow
Palmar Cutaneous branch of the Ulnar nerve goes too?
medial 1/2 of palmar surface of hand
—-Pinky & Ring finger
Where does the Dorsal Cutaneous branch of the Ulnar nerve run?
Medial 1/2 of dorsal surface of hand
—-Pinky & Ring finger
Where does the radial nerve enter the arm?
On the anterior side of the lateral epicondyle
—-between brachial and brachioradialis
What does the Radial nerve branch into
Superficial Branch of Radial Nerve
Deep Branch of the Radial Nerve
What branch of the radial nerve is entirely cutaneous
Superfical branch of the Radial Nerve
Where does the superficial branch of the radial nerve innervate?
Cutaneous innervation to:
Skin of dorsal wrist,
Hand
Dorsum of digits 2,3
Deep branch of the Radial nerve is entirely musculature and articular innervating what muscles
Supinator (C7, C8)
Extensor Carpi Radialis Brevis (C7,C8)
Where does the deep branch of the radial nerve lie?
Sweeps around lateral side of radius to extensor compartment
Posterior interosseous innervates what group of muscles?
Deep Extensor compartment
With what struture does the Posterior Interosseus run with?
travels with Posterior Interosseous Artery
—–a branch of the ulnar artery
