Appendicular - Radius and Ulna

large, curved projection at the proximal end; forms the point of the elbow; attachment for the tricep branchii muscle

deep, C-shaped curve between the O and C processes; articulated with the T of the humerus = hinge of the elbow joint

anterior projection below the trochlear notch; fits into the C fossa of the humerus when the elbow flexes

small depression on the lateral side of the ulna near its proximal end; articulare with the head of the radius = proximal radioulnar joint

small, rounded distal end; located at the bottom unlike the humerus; articulates with the ulnar notch of the radius

pointed projection at the distal end on the medial side of the wrist; attachment site for ligaments = stabilize the wrist joint

medial bone of the forearm = pinky side

lateral bone of the forearm = thumb side

disc=shaped proximal end; articulates with the capitulum of the humerus and the radial notch of the ulna = allowing rotation

pointed projection at the distal end on the lateral side; attachment for branchioradialis tendon = stabilize the wrist

ulna is more associated to the

radius is more associated to the

function of ulna

function of radius (by pivoting around the ulna

articulates with radius (lunate and scaphoid); 8 small bones

5 bones; I-V; after carpals

for fine motor movement and grasping; 14 bones