Musculi antebrachii
ANTEBRACHIAL MUSCLES
ANTERIOR GROUP OF
MUSCLES
The muscles of anterior group
work as flexors of hand and
fingers, also pronators of
forearm are here.
Musculus flexor carpi radialis
• ORIGIN: epicondylus medialis
humeri
• INSERTION : basis of 2nd anf
3rd metacarpus
• INNERVATION: n. medianus
• FUNCTION: flexion of forearm,
palmar flexion of hand and its
radial duction
Musculus palmaris longus
• ORIGIN: epicondylus
medialis humeri
• INSERTION : aponeurosis
palmaris
• INNERVATION: n. medianus
• FUNCTION: flexion of hand
and forearm
Musculus flexor carpi
ulnaris
• ORIGIN: epicondylus medialis
humeri, olecranon ulnae
• INSERTION: os pisiforme,
ligamentum pisohamatum,
ligamentum pisometacarpeum
• INNERVATION: n. ulnaris
• FUNCTION: flexion of forearm and
hand, ulnar duction
Musculus flexor digitorum
superficialis
• ORIGIN: epicondylus medialis
humeri, processus coronoideus
ulnae and radius
• INSERTION: middle pahalnx of
2nd-5th fingers, it forms chiasma
tendinum
• INNERVATION: n. medianus
• FUNCTION: flexion of hand, middle
phalanx and forearm
Musculus flexor pollicis longus
• ORIGIN: anterior surface of
radius and membrana
interossea antebrachii
• INSERTION : distal phalanx of
thumb
• INNERVATION: n. medianus
• FUNCTION: flexion of thumb
and hand
Musculus flexor digitorum
profundus
• ORIGIN: anterior side of ulna and
membrana interossea antebrachii
• INSERTION : distal phalanx of 2nd-
5th fingers
• INNERVATION: n. medianus (2nd
and 3th fingers), n. ulnaris (4th and
5th fingers)
• FUNCTION: flexion of hand and
fingers
Musculus pronator quadratus
• ORIGIN: anterior surface of
ulna
• INSERTION : distal quarter of
radius
• INNERVATION: n. medianus
• FUNCTION: pronation of
forearm
LATERAL GROUP OF
ANTEBRACHIAL MUSCLES
Musculus brachioradialis
• ORIGIN: lateral margin of distal
part of humerus
• INSERTION : processus
styloideus radii
• INNERVATION: n. radialis
• FUNCTION: flexion of forearm,
it paticipates in pronation and
supination
Musculus extensor carpi radialis
longus
• ORIGIN: distal part of
humerus
• INSERTION :base of 2nd
metacarpal bone
• INNERVATION: n. radialis
• FUNCTION: extension of
hand and radial duction
Musculus extensor carpi radialis
brevis
• ORIGIN: epicondylus lateralis
humeri
• INSERTION: base of 3rd
metacarpal bone
• INERVACE: n. radialis
• FUNKCE: extension and
radial duction of hand
Musculus supinator
• ORIGIN: epicondylus lateralis
humeri, ligamentum collaterale
laterale, ligamentum anulare
radii, crista musculi supinatorii
• INSERTION : from tuberositas
radii to the insertion of pronator
teres
• INNERVATION: n. radialis
• FUNCTION: supinace of forearm
POSTERIOR GROUP OF
ANTEBRACHIAL
MUSCLES
Musculus extensor digitorum
communis
• ORIGIN: epicondylus lateralis
humeri
• INSERTION : dorsal
aponeurosis (posterior side of
all three phalanges)
• INNERVATION: n. radialis
• FUNCTION: extension of hand
and fingers
Musculus extensor digiti
minimi
• ORIGIN: epicondylus
lateralis humeri
• INSERTION : dorsal
aponeurosis of 5th finger
• INNERVATION: n. radialis
• FUNCTION: extenion of
hand and 5th finger
Musculus extensor carpi
ulnaris
• ORIGIN: epicondylus
lateralis humeri
• INSERTION : base of 5th
metacarpal bone
• INNERVATION: n. radialis
• FUNCTION: extension and
ulnar duction of hand
Musculus abductor pollicis longus
• ORIGIN: prox. part of ulna,
membrana, prox. part of
radius
• INSERTION : base of 1st
metacarpal bone
• INNERVATION: n. radialis
• FUNCTION: abduction of
thumb
Musculus extensor pollicis
brevis
• ORIGIN: radius,
membrana
• INSERTION : dorsal side
of prox. phalanx of
thumb
• INNERVATION: n. radialis
• FUNCTION: extension
and abduction of thumb
Musculus extensor pollicis
longus
• ORIGIN: ulna, membrana
• INSERTION : distal phalanx
of thumb
• INNERVATION: n. radialis
• FUNCTION: extension of
thumb
Musculus extensor indicis
• ORIGIN: ulna, membrana,
most distally
• INSERTION : dorsal
aponeurosis of
INNERVATION: n. radialis
• FUNCTION: extension of
2nd finger
Musculi manus –
muscles of the hand
Musculus abductor
pollicis brevis
• ORIGIN: eminentia carpi
radialis
• INSERTION: radial
sesamoidal bone
• INNERVATION: n.
medianus
• FUNCTION: abduction of
thumb
Musculus flexor pollicis brevis
• ORIGIN: eminentia carpi
radialis
• INSERTION: radial
sesamoidal bone
• INNERVATION: c.
superficiale-n. medianus, c.
profundum-n. ulnaris
• FUNCTION: flexion of
proximal phalanx and
opposition of the thumb
Musculus opponens pollicis
• ORIGIN: eminentia carpi
radialis
• INSERTION: lateral
margin of 1st metacarpal
bone
• INNERVATION: n.
medianus
• FUNCTION: opposition
of the thumb
Musculus adductor
pollicis
• ORIGIN: c. obliquumeminentia,
c. transversumpalmar
side of 3rd
metacarpal bone
• INSERTION:ulnar
sesamoidal bone
• INNERVATION: n. ulnaris
• FUNCTION: adduction of
the thumb
Musculus palmaris
brevis
• ORIGIN: ulnar margin of
palmar aponeurosis
• INSERTION: skin of
hypothenar
• INNERVATION: n. ulnaris
• FUNCTION: transversal
skin grooves
Musculus abductor
digiti minimi
• ORIGIN: os pisiforme
• INSERTION: base of prox
phalanx of 5th finger
• INNERVATION: n. ulnaris
• FUNCTION: abduction of
5th finger
Musculus flexor digiti
minimi
• ORIGIN: hamulus ossis
hamati
• INSERTION: base of prox
phalanx of 5th finger
• INNERVATION: n. ulnaris
• FUNCTION: flexion of
5th finger
Musculus opponens digiti
minimi
• ORIGIN: eminentia carpi
ulnaris
• INSERTION: ulnar margin
of 5th metacarpal bone
• INNERVATION: n. ulnaris
• FUNCTION: mild
opposition of the 5th
finger
Mm. interossei
palmares I.-III.
• ORIGIN: bodies of
metacarpal bones
• INSERTION: base of prox.
phalanx and dorsal
aponeurosis
• INNERVATION: n. ulnaris
• FUNCTION: adduction of
fingers, flexion of proximal
phalanges
Mm. interossei
dorsales I.-IV.
• ORIGIN: with two heads
on bodies of adjacent
metacaral bones
• INSERTION: base of prox.
phalanx ans dorsal
aponeurosis
• INNERVATION: n. ulnaris
• FUNCTION: abduction of
fingers, flexeion of prox.
phalanx
Musculi lumbricales
• ORIGIN: tendons of m. flexor
digitorum profundus
• INSERTION: radial margin of base of
prox. phalanx, dorsal aponeurosis
of the 2nd-5th fingers
• INNERVATION: I.and II.-n.
medianus; III. and IV.- n. ulnaris
• FUNCTION: finger inclining in radial
direction, participation in proximal
phalangeal flexion
FASCIA MANUS
•Dorsal side
-- fascia dorsalis manus interossea
-- fascia dorsalis manus superficialis
- Palmar side
- fascia palmaris interossea
- fascia palmaris superficialis
- aponeurosis palmaris
CANALIS CARPI
Thank you for your attention!
Obrázky:
Atlas der Anatomie des Menschen/Sobotta. Putz,R., und Pabst,R. 20. Auflage.
München:Urban & Schwarzenberg, 1993
Netter: Interactive Atlas of Human Anatomy.
Naňka, Elišková: Přehled anatomie. Galén, Praha 2009.
Čihák: Anatomie I, II, III.
Drake et al: Gray´s Anatomy for Students. 2010