Download Muscle Upper limbs

Muscles from axial skeleton to shoulder girdle
Dorsal
muscles:
1) Trapezius
2) Levator scapulae
3) Rhomboid major
4) Rhomboid minor
Ventral muscles:
1) Pectoralis minor
2) Serratus anterior
3) Subclavius
Muscle: Upper 1
Trapezius
 Origin:
ext.
occi. prot.
C7-T12 (spine)
 Insert:
clavicle (lat.l/3)
acromion, spine of
scapula
 Nerve: CN XI
 Action:
elevation/depression,
rotation, retraction of
scapula
(posteriorMuscle:
view)Upper
2
Levator scapulae
 trans.
proc. C1-4
  sup. med.
border of scapula
 Nerve: C3-5;
dorsal scapular
n.
 raise scapula
(posterior view)
Muscle: Upper 3
Rhomboid minor
lig. Nuchae,
spines (C7)
lig.
nuchae +
spines (C7)
 med. border
of scapula
(above spine)
Nerve: C5;
dorsal scapular n.
Action: raise
shoulder girdle,
draw the scapula
medially
(posterior view)
Muscle: Upper 4
Rhomboid major
(T1-6) 
med. border of
scapula (below
spine)
 Nerve: C5; dorsal
scapular n.
 Action: raise
shoulder girdle,
draw the scapula
medially
 spines
(posterior view)
Muscle: Upper 5
Rhomboid muscles
Muscle: Upper 6
Pectoralis minor
 R3-5

coracoid
process (scapula)
 Nerve: C8,T1;
medial pectoral n.
 Action: Pull tip of
shoulder
Rib 3-5
Muscle:
Upper
(anterior
view)
7
Serratus anterior
 Rib
l-8
  med. border
of scapula
 Nerve: C5-7;
long thoracic n.
 Action: keep
scapula against
thoracic wall on
pushing
Muscle: Upper 8
Scapular winging: paralysis of
serratus anterior muscle
Long thoracic n.
Muscle: Upper 9
Muscles from axial skeleton to humerus
Dorsal
muscles:
1) Latissimus dorsi
Ventral muscles:
1) Pectoralis major
Muscle: Upper 10
Latissimus dorsi
Intertubercular
groove
 thoracolumbar
fascia
  intertubercular
groove of humerus
 Nerve: C6-8;
thoracodorsal n.
 Action: Adductor,
Medial rotator, and
Extensor at the
Iliac
shoulder joint
Thoracolumbar
fascia
crest
(posterior view)
Muscle: Upper 11
Pectoralis major
 clavicular
head +
sternocostal head
 lat. lip of
intertubercular of
humerus
 Nerve: C5-T1; lat.
& med. pectoral n.
 Action: adductor
and medial rotator
of the shoulder
Intertubercular
groove
(anterior view)
Muscle: Upper 12
lastissimus dorsi, pectoralis major
Muscle: Upper 13
Muscles of pectoral girdle to humerus
Dorsal
muscles:
1) Deltoid
2) Supraspinatus
3) Infraspinatus
4) Teres minor
5) Teres major
6) Subscapularis
Ventral muscles:
1) Coracobrachialis
2) Biceps brachii
Muscle: Upper 14
Deltoid
 From
lateral
Clavicle, Acromion,
spine (Scapula)
  deltoid
tuberosity
(humerus)
 C5,6; axillary n.
 Abductor; (flexor,
extensor)
Deltoid tuberosity
(anterior view)
Muscle: Upper 15
Supraspinatus
 supraspinous
fossa (scapula) 
sup. part of greater
tubercle of
humerus
 C5, 6;
suprascapular n.
 Abductor, rotator
cuff
Sup. part of
Greater tubercle
Muscle: Upper
(posterior view)
16
Infraspinatus
 infraspinous
fossa
(scapula)  greater
tubercle, post. and
inf. to supraspinatus
 C5, 6;
suprascapular n.
 Rotator cuff; lat.
rotator
Greater tubercle
(post.)
Muscle: Upper
(posterior view)
17
Teres minor
Greater tubercle
 mid.
part of lateral
border of scapula 
post. aspect of
greater tubercle
 C5, 6; axillary n.
 Rotator cuff to hold
humerus in glenoid
cavity
Lateral scapula
(posterior view)Muscle: Upper
18
Lesser tubercle
Subscapularis
 ant.
surface of
scapula
  lesser tubercle
of humerus
 C5-7; upper &
lower subscapular
n.
 Med. Rotator;
rotator cuff
Subscapular fossa
Upper 19
Anterior Muscle:
surface
Rotator cuff
 hold
the humerus in
the glenoid fossa
Muscle: Upper 20
Teres major
 inf.
angle of scapula
  med. lip of
intertubercular groove
(med. to the insertion
of latissimus dorsi)
 C6, 7; lower
subscapular n.
 Adductor, medial
rotator
Med. lip of
Intertubercular groove
Inf. angle
Muscle: Upper
(posterior view)
21
Coracobrachialis
 Coracobrachialis
 Tip
of coracoid
proc. (scapula)
  humerus (med
surface)
 C7; musculocutaneous n.
 Adductor, flexor of
upper arm
Tip of coracoid
proc.
mid. 1/3 of
med. humerus
(anterior view)
Muscle: Upper 22
Biceps brachii:
origin
Long, (lateral)
Supraglenoid
 long
head
(anterior view)
head:
supraglenoid
tubercle;
intertubercular
groove
 short head:
coracoid proc.
Muscle: Upper 23
Biceps brachii:
insertion
 radial
tuberosity
 bicipital
aponeurosis
(anterior view)
Muscle: Upper 24
Biceps brachii
 C5-6;
musculocutaneous n.
 Major FLEXOR
of forearm;
assist Supination
(radial tuberosity)
Muscle: Upper
(anterior view)
25
Muscles of shoulder, Biceps brachii
Muscle: Upper 26
Muscles of the upper arm
 Dorsal
muscles
1) Triceps brachii (C6-8; radial n.)
2) Anconeus (C6-8; radial n.)
 Ventral muscles
3) Biceps brachii (C5-6; musculocutaneous n.)
4) Brachialis (C5-6; musculocutaneous n.)
Muscle: Upper 27
Triceps brachii:
origin
 a)
infraglenoid
long head:
infraglenoid
tubercle
 b) lateral head:
above spiral groove
 c) medial head:
below spiral groove Medial head
(posterior view)
Muscle: Upper 28
Triceps brachii
 Insertion:
Common tendon
to olecranon proc.
of ulna
 Function: Major
EXTENSOR of
forearm; stabilize
shoulder joint
 Nerve: C6-8;
Olecranon
radial n.
(posterior view)
Muscle: Upper 29
Posterior
view
Anconeus
 lat.
epicondyle
  olecranon
proc.
 C6-8; radial n.
 Action: minor
extensors of
elbow
Olecranon
proc.
(posterior view)
Muscle: Upper 30
Triceps
Muscle: Upper 31
Muscles on flexor side of forearm
Superficial:
from medial epicondyle of humerus
1) Pronator teres:  mid. of lat. surface of radius
2) Flexor carpi radialis:  2nd, 3rd metacarpal
3) Palmaris longus:  palmar aponeurosis
4) Flexor digitorum superficialis:  middle phalanx
5) Flexor carpi ulnaris:  5th metacarpal (ulnar n.)
Deep
6) Flexor pollicis longus:  distal phalanx
7) Flexor digitorum profundus (median and ulnar nn.)
8) Pronator quadratus: distal ulna  distal radius
Muscle: Upper 32
Pronator teres
Medial
condyle
 from
medial
epicondyle of
humerus
  mid. of lat.
surface of radius
 Medial n.
 Pronator, weak
flexor of forearm
(anterior view)
Muscle: Upper 33
Flexor carpi
radialis
 from
medial
epicondyle of
humerus
  2nd, 3rd
2nd, 3rd
metacarpal
metacarpal
 Medial n
 Flexor of hand,
mildly abductor
(anterior view)
Muscle: Upper 34
Palmaris longus
 from
medial epicondyle
of humerus
  palmar aponeurosis
 Deep fascia of hand
 Prox.: palmaris longus
 Distal: proximal phalax
Palmar
aponeurosis
of digits
 Median n.
 Flexor of hand
(anterior view)
Muscle: Upper 35
Flexor digitorum
superficialis
Med. epicond.
 Origin:
sup. ant.
from medial
radius
epicondyle of
humerus
 2) sup. ant. radius
  middle phalanx
 Median n
 Flexor of mid phalanx
 1)
(anterior view)
Muscle: Upper 36
Flexor carpi
ulnaris
 from medial
epicondyle of
humerus
  5th metacarpal,
pisiform
 ulnar n.
 Flexor of hand
5th metacarpal,
pisiform
(anterior view)
Muscle: Upper 37
Flexor pollicis
longus
 Radius
(anterior
surface) and
interosseous
membrane
  distal phalanx of
thumb
 Ant. Interosseous n
from median n
 Flexor of thumb
Interosseous mem.
Radius
Thumb:
Distal phalanx
Muscle: Upper
(anterior view)
38
Flexor digitorum
profundus
Ulnar
Inter. mem.
 Origin:
Ulnar and
interosseous membrane
 Insertion: Distal
phalanges
 median and ulnar n.
 Flexor of distal phalanx
2th - 5th finger:
Distal phalanx
Muscle: Upper
(anterior view)
39
Pronator
quadratus
 distal ulna
  distal radius
 Anterior
interosseous n.
from median n.
 Pronator of
forearm
Distal
Radius
Distal
Ulna
(anterior view)
Muscle: Upper 40
Muscle: Upper 41
Muscles on the extensor side of forearm (radial n.)
 Superficial:
from lateral epicondyle of humerus
1) Brachioradialis
2) Extensor carpi radialis longus:  2nd metacarpal
3) Extensor carpi radialis brevis:  3rd metacarpal
4) Extensor digitorum:  distal phalanx
5) Extensor digiti minimi:  distal phalanx
6) Extensor carpi ulnaris:  5th metacarpal
 Deep
1) Supinator
2) Abductor pollicis longus: 1st metacarpal
3) Extensor pollicis brevis: proximal phalanx
4) Extensor pollicis longus: distal phalanx
5) Extensor indicis: distal phalanx
Muscle: Upper 42
Brachioradialis
 from
lateral
epicondyle of
humerus
 to distal end of radia
(lateral side)
 Radial n
 Action: Flex forearm
Lateral
epicondyle
(posterior view)Muscle: Upper
43
Extensor carpi
radialis
Lat. epicondyle
Longus
Brevis
2nd
 from
lateral epicondyle
of humerus
 Longus 
2nd metacarpal
 Brevis 
3rd metacarpal
 Radial n
 Extenosr of wrist
3rd
(posterior view)
Muscle: Upper 44
Extensor digitorum
(comm.)
Lat. epicondyle
 from
lateral
epicondyle of
humerus
  distal phalanx
(extensor expansion)
 Radial n
 Extensor of 2-5
metacarpophalangeal
joint (MP joint)
Extensor
digitorum
extensor
expansion
2-5 MP joint
Distal phalanx
(posterior view)Muscle: Upper
45
Extensor carpi ulnaris
 from
lateral epicondyle
of humerus
  5th metacarpal
 Radial n
 Extension of wrist
(posterior view)
Muscle: Upper 46
Supinator
 Origin:
lateral
epicondyle of
humerus, supinator
fossa
 Insertion: proximal
1/3 of radius
 Radial n
 Supinate forearm
(posterior view)
Muscle: Upper 47
Abductor pollicis longus
 Origin:
Posterior
surface of proximal
radia, ulnar and
interosseous
membrane
  1st metacarpal
 Post. Interosseous n
 Abductor of thumb
Base of 1st
metacarpal
(posterior view)
Muscle: Upper 48
Extensor pollicis:
longus and brevis
 Origin:
posterior surface of
distal ulnar, radia and
interosseous membrane
 Longus  distal phalanx
 Brevis  prox. phalanx
 Post. Interosseous n
 Extensor of thumb
Brevis
 Prox
(posterior view)
Longus 
Distal
Muscle: Upper 49
Extensor indicis
 Origin:
posterior surface of
distal ulnar, radia and
interosseous membrane
  distal phalanx
 Post. Interosseous n.
 Extensor of index finger
(posterior view)
Muscle: Upper 50
Forearm muscles
 Pronators
 Flexors
 Supinator
 Extensor
Wrist
extensors
Finger extensors
Muscle: Upper 51
Muscles of Hand
 Thenar
muscles: (recurrent br. of median n.)
1) Abductor pollicis brevis
2) Flexor pollicis brevis
3) Opponens pollicis + Adductor pollicis (ulnar n.)
 Hypothenar muscles: (ulnar n.)
1) Abductor digiti minimi
2) Flexor digiti minimi
3) Opponens digiti minimi, + Palmaris brevis
 Longitudinal muscles of the palm:
1) Lumbricales
2) Palmar interossei
3) Dorsal interossei
Muscle: Upper 52
Abductor pollicis brevis
 Flexor
retinaculum, carpal
bones (scaphoid,
trapezium)
  prox. phalanx of thumb
 recurrent br. of median n.
 Abductor of thumb
(anterior view)
Muscle: Upper 53
Flexor pollicis brevis
 Carpal
bone
(Trapezium), flex.
retinaculum
  prox. phalanx
 recurrent br. of
median n.
 Flexor of thumb
(anterior view)
Muscle: Upper 54
Opponens pollicis
 flex.
retinaculum,
trapezium
  1st Metacarpal
 recurrent br. of
median n.
 Opposition of thumb
(anterior view)
Muscle: Upper 55
Adductor pollicis
Transverse:
metacarpal
 Origin
 Oblique:
middle
metacarpal + capitate
 Transverse: middle
metacarpal
  prox. phalanx of
thumb
Prox.
Phlanx  ulnar n.
 Adductor of thumb to
Oblique:
middle finger
metacarpal +
Muscle: Upper 56
carpitate
(anterior view)
Muscles acting on Thumb
 Extensors
and long Abductors
 Thenar muscles
Muscle: Upper 57
Hypothenar muscles
 Mirror
image of thenar muscles
Abductor digiti minimi
Flexor digiti minimi
Opponens digiti minimi
Palmaris brevis (of little finger)
from Flex. Retinaculum, palmar aponeurosis
 skin of medial palm
by Ulnar n (superficial branch)
to Protect ulnar n & a
Muscle: Upper 58
Abductor digiti
 Carpal
bone
(Pisiform)
  Porx. phalanx of
5th digit
 Ulnar n
 Abductor of 5th
finger
(anterior view)
Muscle: Upper 59
Flexor digiti minimi
 Flexor
retinaculum, carpal
bone (hamate)
  Prox phalanx of 5th digit
 Ulnar n
 Flexor of 5th finger
(anterior view)
Muscle: Upper 60
Opponens digiti minimi
 Flex.
retinaculum,
carpal bone (hamate)
  5th metacarpal
 Ulnar n
 Opposition of 5th
finger
(anterior view)
Muscle: Upper 61
Hypothenar muscles
Muscle: Upper 62
Lumbricals
 Lumbricales:
4,
radial side
 from Flexor
profunda tendon to
extensor tendon
 Nerve: 2 by ulnar n.,
2 by median n.
 Action: Flex MP
joint
(anterior view)
Muscle: Upper 63
Palmar interossei
3
 Origin:
palmar
surface of 2, 4, 5
metacarpals
 Insertion: base of
proximal phalax;
extensor
expansions
 ADduction (3rd
digit as the axial
line)
Prox. phalanx
5
4
2
Metacarpal
(anterior view)
Muscle: Upper 64
Dorsal interossei
 Origin:
adjacent sides
of two metacarpals
 Insertion: base of
proximal phalanges;
extensor expansion
(2-4)
 Ulnar n
 Action: ABduction
(posterior view)
Muscle: Upper 65