Upper Limb Overview

Upper Limb Overview
upper limb regions and joints
shoulder and pectoral region
- axilla

arm (brachium)
- elbow joint

forearm (antebrachium)
- wrist (carpus)

hand


spaces of upper limb
- axilla
- cubital fossa
- carpal tunnel
- anatomical snuffbox


upper limb osteology
- clavicle
- scapula
- humerus
- radius
- ulna
- carpal bones
- hand bones


clavicle osteology
- lateral/acromial end = articulates with acromion of scapula

- medial end = articulates with manubrium




scapula osteology
- acromion process = articulates with acromial end of clavicle

- glenoid fossa = articulates with head of humerus

- coracoid process = attachment site for several muscles: coracobrachialis, short head of
biceps brachii, pectoralis minor

, humerus osteology
- anatomical neck
- surgical neck
- intertubercular groove (tendon of biceps brachii long head goes thru here)
- deltoid tuberosity (deltoid attaches here)
- lateral epicondyle (common origin for extensors of forearm)
- medial epicondyle (common origin for flexors of forearm)


humerus osteology cont'd.
- radial groove
- capitulum (head of radius articulates here)
- trochlea (trochlear notch of ulna articulates here)


radius and ulnar osteology
- olecranon (triceps attaches here)
- trochlear notch (articulates with humerus)
- coronoid process
- radial notch of ulna (head of radius articulates here)
- ulnar tuberosity (brachialis tendon attaches here)
- interosseous lines
- head of ulna
- head of radius
- radial tuberosity (biceps brachii tendon attaches here)
- interosseous membrane (connects radius and ulna)
- ulnar notch of radius


osteology of hand
- phalanges (proximal (5), middle/intermediate (4), distal (5)
- metacarpals 1-5
- carpals (8)


wrist osteology
proximal row:

- pisiform

- triquetrum

- lunate

- scaphoid