22: UE Fascia Flashcards
Fascia over pectoralis major M
Pectoral fascia
Fascia in the floor of the axilla
Axillary fascia
Fascia deep to pectoral fascia
Clavipectoral fascia
Two areas of the clavipectoral fascia
- Costocoracoid membrane
2. Suspensory L of the axilla
Costocoracoid membrane
Clavipectoral fascia between subclavius + pec minor
Suspensory L of the axilla
Clavipectoral fascia between pec minor + axillary fascia
Fascia over deltoid M
Deltoid fascia
Fascia over supraspinatus M
Supraspinous fascia (is extremely dense)
Fascia over infraspinatus M
Infraspinous fascia (is extremely dense)
Fascia in arm and forearm
Arm: brachial fascia
Forearm: antebrachial fascia
Two intermuscular septa in brachium that extend from brachial fascia
Medial and lateral intermuscular septa
Three types of antebrachial fascia
- Extensor retinaculum
- Flexor retinaculum
- Palmar carpal L
Synovial tendon sheaths in the extensor retinaculum
Sheaths surrounding long extensor tendons of forearm as they pass beneath extensor retinaculum
Palmar carpal L
Anterior transverse focal thickening of antebrachial fascia, continuous with extensor retinaculum
Other name for flexor retinaculum
Transverse carpal L
Common flexor sheath in flexor retinaculum
One large synovial sheath surrounds long tendons of the flexor digitorum superficialis and profundus M to reduce friction
What is the palmar aponeurosis continuous with?
Palmaris longus T.
Where is the superficial transverse metacarpal L?
Base of palmar aponeurosis
Retinacula cutis
Many small ligs extending from palmar aponeurosis to skin -> restricts palmar skin movement
Medial fibrous septum of palmar aponeurosis
Extends dorsally to 5th metacarpal, separates hypothenar compartment + central compartment
Lateral fibrous septum of palmar aponeurosis
Extends dorsally to 3rd metacarpal, separates thenar compartment + central compartment
Dupuytren’s contracture: what causes it
Shortening, thickening, and fibrosis of palmar aponeurosis and palmar fascia
Dupuytren’s contracture: what it causes
Partial flexion of 4th and 5th digits
Five compartments of the hand
- Hypothenar
- Central
- Thenar
- Adductor
- Interosseous
Four things found in the central compartment of the hand
- Flexor tendons
- Lumbricals
- Superficial palmar arterial arch
- Digital vessels and nerves
What muscle is in the adductor compartment of the hand?
Adductor pollicis M
Where is the interosseous compartment of the hand?
Between metacarpal bones
What is in the interosseous compartment of the hand?
Interossei muscles