Posterior Forearm and Hand Flashcards
Brachioradialis Innervation
Radial Nerve C5,6,7
Extensor Carpi Radialis Longus Innervation
Radial Nerve C6,7
Extensor Carpi Radialis Brevis Innervation
Deep Branch of Radial Nerve C7,8
Extensor Digitorum Innervation
Posterior Interosseous Nerve (from Deep branch of Radial nerve) C7,C8
Extensor Digiti Minimi Innervation
Posterior Interosseous Nerve (From Deep Branch of Radial Nerve) C7,8
Extensor Carpi Ulnaris Innervation
Posterior Interosseous Nerve (From deep branch of Radial Nerve) C7,8
Supinator Innervation
Deep Branch of Radial Nerve (C7,8)
Abductor Pollicis Longus Innervation
Posterior Interosseous Nerve (From Deep Branch of Radial Nerve) C7,8
Extensor Pollicis Longus Innervation
Posterior Interosseous Nerve (From Deep Branch of Radial Nerve) C7,8
Extensor Pollicis Brevis Innervation
Posterior Interosseous Nerve (From Deep Branch of Radial Nerve) C7,8
Extensor Indices Innervation
Posterior Interosseous Nerve (From Deep Branch of Radial Nerve) C7,8
Anatomical Snuff Box Borders and Contents
- Lateral - Extensor Pollicis Brevis
- Medial - Extensor Pollicis Longus
- Floor - Scaphoid Bone
- Roof - Superficial Radial Nerve Branches, Skin and superficial Fascia
- Passes Through - Radial Artery
Simultaneous Flexion of MP with Extension of IP joint can happen because of _______
the ‘hood’
Strong MP & IP joint flexion is due to what muscle?
Flexor Digitorum Profundus
Name the Thenar Muscles
- Opponens Pollicis
- C8,T1
- Abductor Pollicis Brevis
- C8,T1
- Flexor Pollicis Brevis
- C8,T1
- Adductor Pollicis
- C8,T1
- Not part of Thenar Eminence
Opponens Pollicis Innervation
Reccurent branch of median nerve C8,T1
Opponens Pollicis Blood Supply
Radial Artery
ABductor Pollicis Brevis Innervation
Recurrent branch of median nerve C8,T1
ABductor Pollicis brevis blood supply
Radial Artery
Flexor Pollicis Brevis Innervation
- Superficial Head - Recurrent branch of median nerve C8,T1
- Deep Head - Deep branch of ulnar nerve C8,T1
Flexor Pollicis Brevis Blood Supply
Radial Artery
ADductor Pollicis Innervation
Deep Branch of ulnar nerve C8,T1
ADductor Pollicis Blood Supply
Radial Artery
Hypothenar muscles
- ABductor Digiti minimi
- C8,T1
- Flexor Digiti minimi brevis
- C8,T1
- Opponens digiti minimi
- C8,T1
ABductor Digiti minimi innervation
Deep branch of ulnar nerve C8,T1
ABductor Digiti minimi blood supply
Ulnar Artery
Flexor Digiti Minimi Brevis Innervation
Deep Branch of Ulnar Nerve C8,T1
Flexor Digiti Minimi Brevis Blood Supply
Ulnar Artery
Opponens Digiti minimi Innervation
Deep branch of ulnar nerve C8,T1
Opponens Digiti minimi blood supply
Ulnar Artery
1st and 2nd Lumbricals Innervation and Blood Supply
- Median Nerve C8,T1
- Radialis Inidicis & Superficial Palmar arch
3rd and 4th Lumbricals
- Innervation
- Blood Supply
- Deep branch of ulnar nerve C8,T1
- Superficial Palmar Arch & Dorsal Carpal Arch
What do the lumbricals do?
Flex MP joints and extend IP joints via extensor hood
Palmar Interossei are located on which digits?
2,4,5
Palmar Interossei
- Action
- Innervation
- PAD- _P_amar Interossei _AD_duct
- Deep branch of ulnar nerve C8,T1
Dorsal Interossei
- Action
- Innervation
- DAB- _D_orsal Interossei _AB_duct
- Deep branch of ulnar nerve C8,T1
Dorsal Interossei are located on which digits?
2-4