Contents

Key Structures

Proximal upper extremity

Brachial Plexus

Distal Upper Extremity

Resources

Upper Extremity Introductory Discussion

Lab Summary

An introduction to the bones, movements, muscles, vessels and nerves of the upper extremity.

Lab Objectives

Name the major bones and joints of the upper limb.
Describe the movements of the major joints of the upper limb.
Describe the role of upper extremity motions to position the hand.
Name major muscles and muscles groups of the upper limb with main actions.
Name the principal blood vessels of the upper extremity.
Describe the difference between the superficial and deep venous drainage.
Describe components of the brachial plexus and target compartments.

Lecture List

Bones of the Upper Limb, Movements of the Upper Limb, Muscles of the Upper Limb, Vessels of the Upper Limb, Nerves of the Upper Limb

Bones of the Upper Limb

Bones of the Upper Limb Gallery

1.1a) Arm and forearm
1.1b) Shoulder girdle
1.1c) Clavicular joints
1.1d) Shoulder joint
1.1e) Posterior scapula
1.1f) Lateral scapula
1.1g) Humerus
1.1h) Elbow joint
1.1i) Medial elbow
1.1j) Forearm
1.1k) Wrist joint
1.1l) Wrist and thumb
1.1m) Phalanges
1.1n) Tranverse carpal ligament
1.1o) Carpal tunnel

Movements of the Upper Limb

Movements of the Upper Limb Gallery

2.1a) The shoulder joint
2.1b) The Elbow Joints
2.1c) The humeroulnar joint
2.1d) The humeroradial joint
2.1e) The wrist joint
2.1f) Metacarpophalangeal joint
2.1g) Interphalangeal joints
2.1h) Thumb motions

Muscles of the Upper Limb

Muscles of the Upper Limb Gallery

3.1a) Anterior and posterior muscles
3.1b) Anterior chest wall
3.1c) Posterior shoulder
3.1d) Deep posterior shoulder
3.1e) The shoulder joint
3.1f) Anterior elbow
3.1g) Posterior elbow
3.1h) Hand review
3.1i) Anterior forearm
3.1j) Posterior forearm
3.1k) Distal attachments
3.1l) Anterior hand
3.1m) Anterior hand – Abductor pollicis brevis and flexor pollicis brevis
3.1n) Anterior hand – opponens pollicis
3.1o) Anterior hand – FDP and FDS
3.1p) Abductor pollicis longus
3.1q) Flexor pollicis longus
3.1r) Adductor pollicis

Vessels of the Upper Limb

Vessels of the Upper Limb Gallery

4.1a) Subclavian and axillary arteries
4.1b) Brachial artery
4.1c) Radial and ulnar arteries
4.1d) Palmar arterial arches
4.1e) Digital arteries
4.1f) Venous system of hand
4.1g) Median cubital vein
4.1h) Deep venous drainage
4.1i) Cross-section of midshaft arm
4.1j) Midshaft arm veins
4.1k) Axillary vein becomes subclavian vein
4.1l) Brachial pulse point at cubital fossa
4.1m) Pulse points of wrist

Nerves of the Upper Limb

Nerves of the Upper Limb Gallery

5.1a) The brachial plexus: nerves supply of upper extremity
5.1b) Brachial plexus: spinal nerves from C5 to T1
5.1c) Cords are named for their relationship to the axillary artery
5.1d) Musculocutaneous nerve: C5 – C6 from lateral cord
4.1e) Anterior compartment of arm
5.1f) Axillary nerve: C5 – C6 from posterior cord
5.1g) Deltoid
5.1h) Suprascapular nerve: C5 – C6 from upper trunk
5.1i) Suprascapular nerve, posterior view
5.1j) Suprascapular nerve, posterior view
5.1k) Suprascapular nerve, posterior view
5.1l) Radial nerve: C5 – T1 from posterior cord
5.1m) Radial nerve: C5 – T1 from posterior cord
5.1n) Posterior compartment of forearm
5.1o) Median nerve: C5 – T1 from lateral and medial cord
5.1p) Median nerve: C5 – T1 from lateral and medial cord
5.1q) Ulnar nerve: C8 – T1 from medial cord
5.1r) Ulnar nerve: C8 – T1 from medial cord
5.1s) Posterior forearm: wrist and digits
5.1t) Anterior forearm: wrist and digits
5.1u) Muscle supplied by ulnar nerve
5.1v) Proximal hand
5.1w) Distal palm