Fascia of the Shoulder, Arm, Forearm and Hand (Septa, Compartments, Sheath) 

Content
Introduction 0:00
What is a Fascia? 0:10
Content 2:07
Fascia of the Shoulders: 2:22
Fascia of the Arm 2:58
Fascia of the Forearm 4:26
Fascia of the Hand: 6:00
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Fascia Functions:
- Stabilizes and separates muscles from other internal organs
- Form compartments
- Passage for Nerve, Blood vessels and lymph
- Storage medium for fat and water
- Three types of Fascia:
○ Superficial Fascia
○ Deep Fascia
○ Visceral Fascia
Fascia of the Shoulder
- Deltoid Fascia
- Pectoral Fascia
- Infraspinatus Fascia
- Supraspinatus Fascia
Fascia of the Arm
- Brachial Fascia
fascia brachii
○ Medial Intermuscular Septa
septum intermusculare mediale
○ Lateral Intermuscular Septa
septum intermusculare laterale
○ Deep Lamina
lamina profunda
○ Flexor Compartment
○ Extensor Compartment
○ Vagina Osteofibrosa Extensorum
§ Triceps Muscle
○ Vagina Osteofibrosa Flexorum
§ Coracobrachialis
§ Brachialis
○ Vagina Fibrosa Flexorum
§ Biceps Brachii
Fascia of the Forearm
- Antebrachial Fascia
fascia antebrachii
- Deep Lamina
lamina profunda
- Posterior Intermuscular Septum
septum intermusculare posterior
- Anterior Intermuscular Septum
septum intermusculare anterior
- Lateral Compartment
- Posterior Compartment
- Anterior Compartment
- Interosseous Membrane
- Vagina Osteofibrosa Lateralis
○ Extensor Carpi Radialis Brevis
○ Extensor Carpi Radialis Longus
○ Brachioradialis
- Vagina Osteofibrosa Posterior
○ Extensor Digitorum
○ Extensor Digiti Minimi
○ Extensor Carpi Ulnarus
○ Abductor Pollicis Longus
- Vagina Osteofibrosa Anterior
○ Flexor Digitorum Profundus
○ Flexor Pollicis Longus
- Vagina Fibrosa Antebrachii
○ Pronator Teres
○ Flexor Carpi Radialis
○ Flexor Digitorum Superficialis
○ Flexor Carpi Ulnaris
Fascia of the Hand
- Flexor Retinaculum
retinaculum musculorum flexorum
- Extensor Retinaculum
retinaculum musculorum extensorum
- Palmar Aponeurosis
aponeurosis palmaris
- Superficial Dorsal Fascia
fascia dorsalis superficialis
- Dorsal tendinous sheaths
• 1 Tendinous sheath of abductor pollicis longus and extensor pollicis brevis
(vagina tendinum musculorum abductoris pollicis longi et extensoris pollicis brevis)
• 2 Tendinous sheath of extensores carpi radiales
(vagina communis tendinum musculorum extensorum carpi radialium)
• 3 Tendinous sheath of extensor pollicis longus
(vagina tendinis musculi extensoris pollicis longi)
• 4 Tendinous sheath of extensor digitorum and extensor indicis
(vagina tendinum musculorum
extensoris digitorum et extensoris indicis)
• 5 Tendinous sheath of
extensor digiti minimi
(vagina tendinis musculi
extensoris digiti minimi)
• 6 Tendinous sheath of
extensor carpi ulnaris
(vagina tendinis musculi
extensoris carpi ulnaris)
- Carpal Canal (Canalis Carpi)
1 Tendinous sheath of flexor carpi radialis
(vagina tendinis musculi flexoris carpi radialis)
• 2 Tendinous sheath of flexor pollicis longus
(vagina tendinis musculi flexoris pollicis longi)
• 3 Common flexor sheath
(vagina communis tendinum musculorum flexorum)
- the common sheath for the flexor digitorum
superficialis and flexor digitorum profundus
- usually continues as the tendinous
sheath of the little finger
3.1 Middle carpal sac (saccus carpi medius)
- the widened part of the common flexor sheath
- Ulnar Canal (Canalis Ulnaris) / Guyon’s canal
5 Ulnar artery
• 6 Ulnar veins
• 7 Ulnar nerve