Elbow, Wrist, and Hand Osteology

Lateral supracondylar ridge

Medial supracondylar ridge

radial fossa

coronoid fossa

medial epicondyle

lateral epicondyle

capitellum

trochlea

olecranon fossa

radial notch

coronoid process

olecranon process

trochlear notch

articular fovea

neck of radius

articular circumference of radius

anterior ulnar/medial collateral ligament

posterior ulnar/medial collateral ligament

transverse ulnar/medial collateral ligament

MCL/UCL function

resists Valgus forces

lateral collateral ligament complex components

radial collateral ligament, annular ligament, lateral ulnar collateral ligament

lateral ulnar collateral ligament

annular ligament

lateral/radial collateral ligament

components of the lateral collateral ligamentus complex

radial collateral ligament, annular ligament, lateral ulnar collateral ligament

interosseus

tissue type of majority of annular ligament

dense regular connective tissue

tissue type of inner surface of annular ligament

articular cartilage

styloid process of radius

styloid process of ulna

ulnar notch

triangular fibrocartilaginous complex (TFCC)

trapezoid

trapezium

scaphoid

lunate

triquetrum

hamate

capitate

pisiform

ulnocarpal/articular disc

ulnocarpal meniscus homologue

palmar radioulnar ligament

dorsal radioulnar ligament

carpometacarpal joints (CMC)

plane for flexion/extension of first CMC joint

frontal plane

plane for abduction/adduction of first CMC joint

sagittal plane

metacarpophalangeal joints (MCP)

palmar ligament/volar plate

function of volar plate

resists extension

MCP ligaments

true collateral ligament, accessory collateral ligament

true collateral ligament (1)

attaches to base of proximal phalanx

accessory collateral ligament (2)

attaches to volar plate

interphalangeal joints of phalanges 2-5

proximal and distal interphalangeal joints