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Insertion (Distal Attachment) > Action > Flashcards

Action Flashcards

1
Q

Trapezius

A 
-Upper trapezius:
elevates scapula
-Lower trapezius:
depresses,
adducts, and
posteriorly tilts
scapula
-Middle
trapezius:
adducts scapula
-Upper and lower
trapezius
together:
upwardly rotates
scapula
-Scapula fixed:
upper trap
ipsilaterally
laterally flexes,
contralaterally
rotates head &
neck; bilaterally
extends head and
neck
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2
Q

Latissimus Dorsi

A 
-Extends,
adducts, and
medially rotates
humerus
-Posteriorly tilts
scapula
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3
Q

Rhomboid Major

A 
-Adducts,
elevates, and
downwardly
rotates scapula
-Stabilizes
scapula on
thoracic wall
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4
Q

Rhomboid Minor

A 
-Adducts,
elevates, and
downwardly
rotates scapula
-Stabilizes
scapula on
thoracic wall
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5
Q

Levator Scapulae

A 
-Elevates and
downwardly
rotates scapula
-scapula fixed:
ipsilaterally flexes
and rotates
head/neck;
bilaterally
extends head and
neck
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6
Q

Serratus Posterior

Superior

A

Elevates ribs

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7
Q

Serratus Posterior

Inferior

A

Depresses ribs

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8
Q

Splenius Capitis

A 
-ipsilaterally
laterally flexes &
rotates
head/neck
-bilaterally
extends
head/neck
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9
Q

Splenius Cervicis

A 
-ipsilaterally
laterally flexes &
rotates
head/neck
-bilaterally
extends
head/neck
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10
Q

Iliocostalis (part of

Erector spinae)

A 
-ipsilaterally
laterally flexes
trunk
-bilaterally
extends trunk
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11
Q

Longissimus (part of

Erector spinae)

A 
-ipsilaterally
laterally flexes
trunk
-bilaterally
extends trunk
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12
Q

Spinalis

A 
- ipsilaterally
laterally flexes
trunk
-bilaterally
extends trunk
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13
Q

Transverspinalis
(semispinalis,
multifidus, and
rotatores)

A 
Stabilizes
vertebrae during
local movements
of vertebral
column
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14
Q

Semispinalis

A 
Contralaterally
rotates trunk;
ipsilaterally
laterally flexes
trunk/head;
bilaterally
extends trunk
and head.
Stabilizes
vertebrae during
local movements
of vertebral
column
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15
Q

Multifidus

A 
Contralaterally
rotates trunk;
ipsilaterally
laterally flexes
trunk; bilaterally
extends trunk.
Stabilizes
vertebrae during
local movements
of vertebral
column
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16
Q

Rotatores Brevis and

Longus

A 
Contralaterally
rotates trunk;
Stabilizes
vertebrae during
local movements
of vertebral
column
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17
Q

Intertransversarii

A

Ipsilaterally
laterally flex the
trunk and neck

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18
Q

Interspinales

A

Extension of

trunk and neck

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19
Q 
Levatores Costarum
(longus and brevis)
A

Elevate the ribs
(i.e. aid in
respiration)

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20
Q

Obliquus Capitis

Inferior

A

-ipsilaterally:
rotates head and
neck

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21
Q

Obliquus Capitis

Superior

A 
-ipsilaterally:
lateral flexion of
head/neck
-bilaterally:
extension of
head/neck
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22
Q

Rectus Capitis

Posterior Major

A 
-ipsilaterally:
rotation of
head/neck
-bilaterally:
extension of
head/neck
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23
Q

Rectus Capitis

Posterior Minor

A 
-ipsilaterally:
rotation of
head/neck
-bilaterally:
extension of
head/neck
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24
Q

Platysma

A 
Depresses angle
of mouth and
mandible; widens
corners of
mouth; raises skin of neck when
teeth clenched
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25
Q

Sternohyoid

A 
Depression and
stabilization of
hyoid and larynx
during phonation
and swallowing.
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26
Q

Omohyoid (inferior

and superior bellies)

A 
Depresses,
retracts, and
steadies the
hyoid bone
during
swallowing and
phonation
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27
Q

Sternothyroid

A 
Depresses and
stabilizes hyoid
and larynx during
swallowing and
phonation
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28
Q

Thyrohyoid

A

Depresses hyoid
and elevates
larynx during
swallowing

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29
Q

Anterior belly of

Digastric

A 
Elevates and
steadies the
hyoid during
swallowing and
phonation;
depresses the
mandible against
resistance
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30
Q

Posterior belly of

Digastric

A 
Elevates and
steadies hyoid
during
swallowing and
speaking;
depresses the
mandible against
resistance
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31
Q

Mylohyoid

A 
Elevates and
draws hyoid bone
forward; elevates
the tongue and
floor of mouth
during speaking
and swallowing; 
depresses the
mandible
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32
Q

Stylohyoid

A

Elevates and
retracts hyoid
thus elongating
floor of mouth

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33
Q

Sternocleidomastoid

A 
-Unilaterally:
Ipsilat laterally
flexes and
contralat rotates
head and neck
-Bilaterally:
protrudes head
and neck
-Elevates
sternum during
forceful
expiration
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34
Q

Anterior Scalene

A 
-Laterally flexes
head and neck to
same side
-Elevates first rib
during forced
inspiration
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35
Q

Middle Scalene

A 
-Laterally flexes
head and neck to
same side
-Elevates first rib
during forced
inspiration
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36
Q

Posterior Scalene

A 
-Laterally flexes
head and neck to
same side
-Elevates 2
nd rib
during forced
inspiration
37
Q

Rectus Capitis

Anterior

A

Flexes head

38
Q

Rectus Capitis

Lateralis

A

Laterally flexes
head and helps
stabilize it

39
Q

Longus Colli

A 
-Bilaterally: flexes
neck
-Unilaterally:
contralateral
rotation of neck
40
Q

Longus Capitis

A

-Flexes head

41
Q

External Intercostals

A

Elevate ribs
during forced
inspiration

42
Q

Internal Intercostals

A

Depresses ribs
during forced
expiration

43
Q

Innermost

Intercostals

A

Depresses ribs
during forced
expiration

44
Q

Transversus Thoracis

A

Depresses ribs
during forced
expiration

45
Q

Supraspinatus

A 
-Initiates
abduction (1st 15
degrees) of
humerus
-Stabilizes
humeral head in
glenoid fossa
46
Q

Infraspinatus

A 
-Laterally rotates
humerus
-Stabilizes
humeral head in
glenoid fossa
47
Q

Teres Minor

A 
-Laterally rotates
humerus
-Stabilizes head
of humerus in
glenoid fossa
48
Q

Subscapularis

A 
-Adducts and
medially rotates
humerus
-Stabilizes
humeral head in
glenoid fossa
49
Q 
Teres Major (NOT
part of rotator cuff)
A

-Adducts and
medially rotates
humerus

50
Q

Deltoid

A 
-Anterior: flexes
and medially
rotates humerus
-Middle: abducts
humerus (after 1
st
15 degrees)
-Posterior:
Extends and
laterally rotates
humerus
51
Q

Triceps Brachii

A

-Extends forearm
-Long head
extends humerus
& resists
dislocation of
glenohumeral
joint

52
Q

Anconeus

A 
-Extends forearm,
stabilizes elbow
joint, abducts
ulna during
pronation
53
Q

Pectoralis Major

A 
-Horizontally
adducts and
medially rotates
humerus
-Clavicular fibers
horizontally
adduct humerus
-Sternocostal
fibers
horizontally
adduct & extend
humerus from a
flexed position
54
Q

Pectoralis Minor

A

-Anteriorly tilts
and depresses
scapula

55
Q

Subclavius

A

-Stabilizes and

depresses clavicle

56
Q

Serratus Anterior

A 
-Upwardly
rotates and
abducts scapula
-Stabilizes
scapula on
thoracic wall
57
Q

Coracobrachialis

A 
Flexes & adducts
humerus
-Resists
dislocation of
glenohumeral
joint
58
Q

Brachialis

A

-Flexes elbow in

all position

59
Q

Biceps Brachii

A 
-Supinates
forearm & flexes
elbow
-Resists
dislocation of
glenohumeral
joint
60
Q

Pronator Teres

A

-Pronates
forearm & flexes
elbow

61
Q

Flexor Carpi Radialis

FCR

A 
-Flexes and
radially deviates
wrist
-Weakly flexes
elbow
62
Q

Palmaris Longus

A 
-Tenses palmar
aponeurosis
-Flexes wrist,
weakly flexes
elbow
63
Q

Flexor Carpi Ulnaris

FCU

A

-Flexes & ulnarly
deviates wrist
-Weakly flexes
elbow

64
Q

Flexor Digitorum

Superficialis (FDS)

A 
-Flexes proximal
interphalangeal
joints) PIP &
(metacarpophala
ngeal) (MCP)
joints
65
Q

Flexor Digitorum

Profundus (FDP)

A

-Flexes DIP, PIP,
& MCP joints for 2nd-5th digits
-Flexes wrist

66
Q

Flexor Pollicis Longus

FPL

A

-Flexes IP & MCP
of 1st digit
(thumb)
-Flexes wrist

67
Q

Pronator Quadratus

A

-Pronates forarm
-Stabilizes distal
radioulnar joint

68
Q

Abductor Pollicis

Brevis

A

-Abducts &

opposes thumb

69
Q

Opponens Pollicis

A

-Opposes thumb

70
Q

Flexor Pollicis Brevis

A

Flexes MCP joint
of 1st digit
(thumb)

71
Q

Flexor Digiti Minimi

A

-Flexes MCP joint

of 5th digit

72
Q

Abductor Digiti

Minimi

A

-Abducts & flexes
MCP joint of 5th
digit

73
Q

Opponens Digiti

Minimi

A

-Opposes 5th digit

74
Q

Palmaris Brevis

A

-Tenses skin of

palmar fascia

75
Q

Adductor Pollicis

A

-Adducts thumb

76
Q

Lumbricals (1st & 2nd)

A

-Flexes MCP
joints and
extends IP joints
of 2nd-3rd digits

77
Q

Lumbricals (3rd & 4th)

A

-Flexes MCP and
extends IP joints
of 4th & 5th digits

78
Q

Brachioradialis

A 
-Weak flexion of
elbow (maximal
when forearm in
midpronated
position)
79
Q

Extensor Carpi

Radialis Longus

A 
-Extends and
radially deviates
wrist (active
during fist
clenching)
80
Q

Extensor Carpi

Radialis Brevis

A 
-Extends and
radially deviates
wrist (active
during fist
clenching)
81
Q

Extensor Digitorum

ED

A

-Extends elbow
-Extends hand at
wrist
-Extends 2nd-5th
digits (primarily at MCP joints,
secondarily at IP
joints)

82
Q

Extensor digiti

minimi (if present)

A

-Extends 5th digit
-Weak wrist
extension

83
Q

Extensor Carpi

Ulnaris

A 
-Extends and
ulnarly deviates
wrist (active
during fist
clenching)
84
Q

Supinator

A

-Supinates

forearm

85
Q

Abductor Pollicis

Longus (APL)

A 
-Abducts and
extends 1st digit
(thumb) at
carpometacarpal
CMC) joint
86
Q

Extensor Pollicis

Brevis

A 
-Extends proximal
phalanx of thumb
at MCP joint
-Extends CMC
joint
87
Q

Extensor Pollicis

Longus

A 
-Extends distal
phalanx of thumb
at IP joint
-Extends thumb
at MCP and CMC
joints
88
Q

Extensor Indicis

A 
-Extends 2nd digit
(enabling its
independent
extension from
other digits)
-weakly extends
hand at wrist

Insertion (Distal Attachment) (2 decks)

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