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Muscle Innervation > Origin (Proximal Attachment) > Flashcards

Origin (Proximal Attachment) Flashcards

1
Q

Trapezius

A 
Medial third of
superior nuchal
line; external
occipital
protuberance;
nuchal
ligament;
spinous
processes of
C7-T12
vertebrae
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2
Q

Latissimus Dorsi

A 
Spinous
processes of
T7-T12;
thoracolumbar
fascia; iliac
crest; inferior 3
or 4 ribs
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3
Q

Rhomboid Major

A 
Spinous
processes of
T2-T5
vertebrae (i.e.
upper thoracic
vertebrae)
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4
Q

Rhomboid Minor

A 
Nuchal
ligament;
spinous
processes of C7
and T1
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5
Q

Levator Scapulae

A 
Posterior
tubercles of
transverse
processes of
C1-C4
vertebrae
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6
Q

Serratus Posterior

Superior

A 
Nuchal
ligament;
spinous
processes of
C7-T3
vertebrae
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7
Q

Serratus Posterior

Inferior

A

Spinous
processes of
T11-L2
vertebrae

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8
Q

Splenius Capitis

A 
Nuchal
ligament and
spinous
processes of
C7-T3 or T4
vertebrae
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9
Q

Splenius Cervicis

A 
Nuchal
ligament and
spinous
processes of
C7-T6
vertebrae
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10
Q

Iliocostalis (part of

Erector spinae)

A 
Arises by a
broad tendon
from posterior
part of iliac
crest; posterior
surface ofsacrum;
sacroiliac
ligaments;
sacral and
inferior lumbar
spinous
processes;
supraspinous
ligament
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11
Q

Longissimus (part of

Erector spinae)

A 
Arises by a
broad tendon
from posterior
part of iliac
crest; posterior
surface of
sacrum;
sacroiliac
ligaments;
sacral and
inferior lumbar
spinous
processes;
supraspinous
ligament
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12
Q

Spinalis

A 
Arises by a
broad tendon
from posterior
part of iliac
crest; posterior
surface of
sacrum;
sacroiliac
ligaments;
sacral and
inferior lumbar
spinous
processes;
supraspinous
ligament;
Individual
components:
- Thoracis:
Spinous
processes of
lower thoracic
and upper
lumbar
vertebrae to L4
-Cervicis:
Spinous
processes of
upper thoracic
and lower
cervical
vertebrae
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13
Q

Transverspinalis
(semispinalis,
multifidus, and
rotatores)

A

Transverse

processes

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14
Q

Semispinalis

A

Transverse
processes of
C3-T12
vertebrae

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15
Q

Multifidus

A 
Arises from
posterior
sacrum and
transverse
processes of
cervical (except
C1) through
lumbar
vertebrae
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16
Q

Rotatores Brevis and

Longus

A 
Arise from
transverse
processes of
vertebrae; best
developed in
thoracic region
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17
Q

Intertransversarii

A

Transverse
processes
below insertion

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18
Q

Interspinales

A 
Superior
surfaces of
spinous
processes
inferior to
insertion
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19
Q 
Levatores Costarum
(longus and brevis)
A

Transverse
processes of
C7-T11

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20
Q

Obliquus Capitis

Inferior

A

Spinous

process of C2

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21
Q

Obliquus Capitis

Superior

A

Transverse

process of C1

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22
Q

Rectus Capitis

Posterior Major

A

Spinous

process of C2

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23
Q

Rectus Capitis

Posterior Minor

A

Posterior

tubercle of C1

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24
Q

Platysma

A 
Fascia covering
superior parts
of pectoralis
major and
deltoid muscles
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25
Q

Sternohyoid

A 
Posterior
surface of
manubrium
and medial
(sternal) end of
clavicle
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26
Q

Omohyoid (inferior

and superior bellies)

A 
Superior
Border of
scapula medial
to
suprascapular
notch
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27
Q

Sternothyroid

A

Posterior
surface of the
manubrium

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28
Q

Thyrohyoid

A

Oblique line of
thyroid
cartilage

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29
Q

Anterior belly of

Digastric

A

Digastric fossa

of mandible

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30
Q

Posterior belly of

Digastric

A

Mastoid notch
on mastoid
process of
temporal bone

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31
Q

Mylohyoid

A

Mylohyoid line

of mandible

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32
Q

Stylohyoid

A

Styloid process
of temporal
bone

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33
Q

Sternocleidomastoid

A 
Sternal head:
anterior
surface of
manubrium;
Clavicular
head: medial
one third of
clavicle
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34
Q

Anterior Scalene

A

Transverse
processes of
C3-6 vertebrae

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35
Q

Middle Scalene

A

Transverse
processes of
C2-7 vertebrae

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36
Q

Posterior Scalene

A

Transverse
processes of
C4-6 vertebrae

37
Q

Rectus Capitis

Anterior

A

Transverse
process of C1
(atlas)

38
Q

Rectus Capitis

Lateralis

A

Transverse
process of C1
(atlas)

39
Q

Longus Colli

A 
Anterior
tubercle of C1,
bodies of C2-3,
and transverse processes of
C3-6
40
Q

Longus Capitis

A

Transverse
processes of
C3-5

41
Q

External Intercostals

A

Inferior border
of the superior
rib

42
Q

Internal Intercostals

A

Inferior border
of the superior
rib

43
Q

Innermost

Intercostals

A

Inferior border
of the superior
rib

44
Q

Transversus Thoracis

A

Posterior
surface of
sternum and
xiphoid

45
Q

Supraspinatus

A

Supraspinous
fossa of
scapula

46
Q

Infraspinatus

A

Infraspinous
fossa of
scapula

47
Q

Teres Minor

A

Middle part of
lateral border
of scapula

48
Q

Subscapularis

A

Subscapular
fossa of
scapula

49
Q 
Teres Major (NOT
part of rotator cuff)
A

Posterior
surface of
inferior angle
of scapula

50
Q

Deltoid

A 
Lateral third of
clavicle;
acromion;
spine of
scapula
51
Q

Triceps Brachii

A 
Long Head:
infraglenoid
tubercle of
scapula
Lateral Head:
posterior
surface of
humerus,
superior radial
groove
Medial Head:
Posterior
surface of
humerus,
inferior to
radial groove
52
Q

Anconeus

A

Lateral
epicondyle of
humerus

53
Q

Pectoralis Major

A 
Clavicular
head: anterior
surface of
medial half of
clavicle
Sternocostal
head: anterior
surface of
sternum;
superior 6
costal
cartilages
54
Q

Pectoralis Minor

A

3rd-5th ribs near
their costal
cartilages

55
Q

Subclavius

A

Junction of 1st
rib and its
costal cartilage

56
Q

Serratus Anterior

A

External and
lateral surfaces
of 1st-8th or 9th
ribs

57
Q

Coracobrachialis

A

Coracoid
process of
scapula

58
Q

Brachialis

A

Distal half of
anterior
surface of
humerus

59
Q

Biceps Brachii

A 
Short head:
coracoid
process of
scapula
Long Head:
supraglenoid
tubercle of
scapula
60
Q

Flexor Carpi Radialis

FCR

A 
Medial
epicondyle of
humerus (via
common flexor
tendon)
61
Q

Palmaris Longus

A 
Medial
epicondyle of
humerus (via
common flexor
tendon)
62
Q

Flexor Carpi Ulnaris

FCU

A 
Humeral Head:
Medial
epicondyle of
humerus (via
common flexor
tendon)
Ulnar Head:
olecranon and
posterior
border of ulna
63
Q

Flexor Digitorum

Superficialis (FDS)

A 
Humeroulnar
head: Medial
epicondyle of
humerus (via
common flexor
tendon)
Radial head:
anterior
proximal radius
64
Q

Flexor Digitorum

Profundus (FDP)

A 
Proximal
medial and
anterior ulna;
interosseous
membrane
65
Q

Flexor Pollicis Longus

FPL

A 
Anterior
surface of
radius;
interosseous
membrane
66
Q

Pronator Quadratus

A

Distal anterior

ulna

67
Q

Abductor Pollicis

Brevis

A 
Flexor
retinaculum
and tubercles
of scaphoid
and trapezium
68
Q

Opponens Pollicis

A 
Flexor
retinaculum
and tubercles
of scaphoid
and trapezium
69
Q

Flexor Pollicis Brevis

A 
Flexor
retinaculum
and tubercles
of scaphoid
and trapezium
70
Q

Flexor Digiti Minimi

A

Hook of
hamate and
flexor
retinaculum

71
Q

Abductor Digiti

Minimi

A

Pisiform

72
Q

Opponens Digiti

Minimi

A

Hook of
hamate and
flexor
retinaculum

73
Q

Palmaris Brevis

A

Palmar

aponeurosis

74
Q

Adductor Pollicis

A 
Oblique head:
base of 2nd &
3
rd
metacarpals;
trapezoid &
capitate
Transverse
Head: anterior
surface of 3rd
metacarpal
75
Q

Lumbricals (1st & 2nd)

A

Lateral 2
tendons of FDP
(as unipennate
muscles)

76
Q

Lumbricals (3rd & 4th)

A

Medial 3
tendons of FDP
(as bipennate
muscles)

77
Q

Brachioradialis

A

Lateral
supracondylar
ridge of
humerus

78
Q

Extensor Carpi

Radialis Longus

A

Lateral
supracondylar
ridge of
humerus

79
Q

Extensor Carpi

Radialis Brevis

A 
Lateral
epicondyle of
humerus (via
common
extensor
tendon)
80
Q

Extensor Digitorum

ED

A 
Lateral
epicondyle of
humerus (via
common extensor
tendon)
81
Q

Extensor digiti

minimi (if present)

A 
Lateral
epicondyle of
humerus (via
common
extensor
tendon)
82
Q

Extensor Carpi

Ulnaris

A 
Lateral
epicondyle of
humerus (via
common
extensor
tendon);
posterior
border of ulna
83
Q

Supinator

A 
Lateral
epicondyle of
humerus (via
common
extensor
tendon); radial
collateral and
anular
ligaments
84
Q

Abductor Pollicis

Longus (APL)

A 
Posterior
surface of
proximal halves
of ulna, radius,
and
interosseous
membrane
85
Q

Extensor Pollicis

Brevis

A 
Posterior
surface of
distal third of
radius and
interosseous
membrane
86
Q

Extensor Pollicis

Longus

A 
Posterior
surface of
middle third of
ulna and
interosseous
membrane
87
Q

Extensor Indicis

A 
Posterior
surface of
distal third of
ulna and
interosseous
membrane
88
Q

Pronator Teres

A 
Ulnar Head:
coronoid
process of ulna
Humeral Head:
medial
epicondyle of
humerus (via
common flexor
tendon)

Muscle Innervation (2 decks)

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