Muscles of Hand Flashcards
Which compartment is Abductor Pollis Brevis in
Thenar
which compartment is Flexor Pollis Brevis in
Thenar
which compartment is Opppenens Pollicis in
Thenar
What innervates Abductor Pollis Brevis
Recurrent Branch of Median N.
What innervates Flexor Pollis Brevis
Superficial head:
Recurrent Branch of Median N.
Deep head:
deep branch of Ulnar N.
What innervates Oppenens Pollicis
Recurrent branch of Median N.
Which compartment is Adductor Pollicis in
Adductor compartment
What innervates Adductor Pollicis?
Deep branch of Ulnar nerve
which compartment is abductor digiti minimi in
hypothenar compartment
what compartment is Flexor Digiti Minimi Brevis in
Hypothenar compartment
which compartment is Opponens Digiti minimi in
hypothenar compartment
which compartment is Palmaris Brevis in
Not in any group
‘
Just say hypothenar compartment???
What innervates abductor digiti minimi
Deep branch of Ulnar N.
What innervates Flexor Digiti Minimi Brevis
Deep branch of Ulnar N.
What innervates Opponens Digiti Minimi
deep branch of Ulnar N.
What innervates Palmaris Brevis
Deep branch of Ulnar N.
which compartment are the Lumbricles in
central compartment
What innervates the lumbricles
1st and 2nd
median Nerve
3rd and 4th
Deep branch of Ulnar N.
What compartment are the interossei muscles in?
Interosseous compartments
What innervates the interossei?
Deep branch of ulnar nerve
What is the action of the Dorsal interossei
Abduct digits
What is the action of the Palmar interossei
Adduct digits
What is the action of the Lumbricles
Flexes MCP joints
Extends PIP and DIP joints
What is the insertion of the lumbricles
Radial side of the extensor expansion distal to insertion of interosseous muscles
What is the origin of the Lubricles
tendons of flexor digitorum profundus
What is the origin of the palmar interossei
Palmar surfaces of metacarpals
What is the origin of the dorsal interossei
Adjacent sides of two metacarpals
How many dorsal interossei are there vs palmar interossei
4 dorsal
3 palmar
Which interossei are bipennate and which are unipennate
unipennate - palmar
bipennate - dorsal
What are the attachments of the Lateral Fibrous Septum
Lateral border of palmar aponeurosis
3rd metacarpal
What is the insertion of the Palmar Interossei
Dorsal expansion
What is the insertion of the Dorsal interossei
Dorsal hood
Base of metacarpal
What does the Dorsal Expansion Hood cover
Back and sides of metacarpal and proximal phalanx
In triangular shape
What three bands does the Dorsal Expansion Hook divide into
Median Band (central slip)
2 Lateral bands
Retinacular ligament
Where does the Median Band (central slip) of the Dorsal Expansion Hood run
on the middle of the proximal phalanx
What does the Retinacular Ligament of Dorsal Expansion Hood do
Connects Fibrous digital sheath (Distal) to Extensor Expansion
What are the branches of the superficial Palmar arch
3 common palmar digital arteries
proper palmar digital arteries
What are the branches of the deep palmar arch
3 palmar metacarpal arteries
princeps pollicis artery
radial indicis artery
