Muscles Flashcards
1
Q
frontalis
A
`elevates eyebrows, wrinkles forehead
2
Q
occipitalis
A
draws scalp backward
3
Q
orbicularis oculi
A
closes eyes for winking
4
Q
orbicularis oris
A
closes and puckers lips: kissing
5
Q
zygomaticus major
A
elevates corner of mouth for smiling
6
Q
depressor anguli oris
A
depresses corner of mouth for frown
7
Q
buccinator
A
pulls cheeks against teeth when chewing, moves cheek toward midline
8
Q
platysma
A
flexes neck muscles, depresses lower lip
9
Q
masseter
A
elevates and protracts mandible for chewing, muscle for chewing
10
Q
temporalis
A
elevates and retracts mandible, muscle for chewing
11
Q
medial and lateral pterygoids
A
elevates mandible and moves it side to side, muscle for chewing
12
Q
genioglossus
A
protracts and depresses tounge
13
Q
styloglossus
A
retracts and elevates tounge
14
Q
hyoglossus
A
depresses side of tongue and retreacts
15
Q
sternocleidomastiod
A
rotates head side to side, together-flex head and neck
16
Q
splenius capitus
A
rotates head side to side, together-extend the head and neck
17
Q
digastric
A
elevates hyoid and depresses mandible
18
Q
stylohyoid
A
elevates hyoid
19
Q
mylohyoid
A
elevates hyoid and raises floor of mouth
20
Q
geniohyoid
A
elevates hyoid
21
Q
sternohyoid
A
depresses hyoid
22
Q
omohyoid
A
depresses hyoid
23
Q
sternothyroid
A
depresses thyoid
24
Q
thyrohyoid
A
depresses hyoid and raises thyroid
25
quadratus lumborum
together: extend the lumbar vertebral column. Each laterally flexes the vertebral column
26
erector spinae
work together to extend the vert. column
27
iliocostalis
most lateral of erector spinae
28
longissimus
intermediate of erector spine
29
spinalis
most medial of erector spinae
30
diaphragm
contraction pulls the central portion down, increasing vertical dimensions of the thorax
31
external intercostals
elevates ribs during inhalation. (contract, pull ribs upward)
32
internal intercostals
depresses ribs during exhalation
33
scalenes
elevates 1 and 2 ribs during inspiration
34
abdominal muscle group
compress abdominal contents and flex vertebral column
35
external abdominal oblique
flet vert column, compresse abdominal contents
36
internal oblique
flex vert. column and compress abdominal contents
37
transverse abdominis
flex vert. compress abdom.
38
rectus abdominis
flex. vert. compresse abdom.
39
trapezius
elevates, depresses, retracts and rotates scapula
40
rhomboids (major and minor)
elevate and retract scapula, pull toward midline
41
levator scapulae
elevates and retracts scapula
42
pectoralis minor
protracts and depresses scapula
43
serratus anterior
protacts and depresses scapula
44
pectoralis major
flexes, adducts, and medially rotates humerus
45
deltoid
abducts, flexes, and extends arm/humerus
46
coracobrachialis
flexes and adducts arm/humerus
47
terres major
extends, adducts, and medially rotates humerus
48
subscapularis
medially rotates arm/humerus
49
supraspinatus
abducts and laterally rotates arm
50
infraspinatus
laterally rotates arm
51
terres minor
laterally rotates arm
52
biceps brachii
flex forearm/elbow
53
brachialis
flex forearm/elbow
54
brachioradialis
flex forearm/elbow
55
triceps brachii
extend forearm/elbow
56
aconeus
extend forearm/elbow
57
pronator teres
pronates forearm
58
flexor carpi radialis
flexes wrist and abduct hand
59
palmaris longus
flexes wrist
60
flexor carpi ulnaris
flexes wrist and adducts hand
61
flexor digitorum superfacialis
flexes wrist and flexes digits 2-5 at MP and PIP joints
62
flexor digitorum profundus
flexes wrist and digits at 2-5 MP PIP and DIP
63
flexor pollicis longus
flexes thumb
64
pronator quadratus
pronates forearm
65
extensor carpi radialis longus
extends wrist and abducts hand
66
extensor carpi radialis brevis
extends wrists/abducts hand
67
entensor digitorum
extends wrist and extends digits 2-5 at MP PIP and DIP joints
68
extensor carpi ulnaris
extends wrist and adducts hand (to midline
69
supinator
supinates forearm
70
abductor pollicis longus
abducts thumb
71
extensor pollicis longus
extends thumb
72
thenar muscles
move the thumb
73
hypothenar
move the little finger
74
midpalmar muscles
move fingers 2-5-flex the MP joints and extend the PIP and DIP joints
75
lubricales
part of mid-palmer muscles, flex MP and extend PIP/DIP
76
palm interossei
midpalmer muscles, adduct fingers, flex MP and extend PIP/DIP
77
dorsal interossei
abduct fingers, flex MP and extend PIP/DIP
78
pelvic diaphragm
closes inferior opening to pelvis, supports pelvic organs
79
latissmus dorsi
adducts, extends, and medially rotates arm, humorous (swimmer's muscle)
80
iliacus
flex the thigh/hip
81
psoas major
flex the thigh/hip
82
sartorius
also flexes leg/knee. flex thigh/hip
83
quadriceps femoris
extend the knee and leg (4 muscles)
84
rectus femoris
extend the knee/leg QF
85
vastus medialis
extend the knee/leg QF
86
vastus intermedius
extend the knee/leg
87
vastus lateralis
extend the knee/leg
88
adductors (longus, brevis, magnus)
adduct the thigh hip, also flex
89
pectineus
flex and adduct thigh/hip
90
gracilis
flex knee/leg, adduct the thigh/hip
91
tensor fascia latae
abduct thigh
92
Illiotibial band
abduct thigh
93
gluteus maximus
extend thigh/hip
94
gluteus medius
abduct thigh/hip
95
gluteus minimus
abduct thigh/hip
96
bicep femoris
extend thigh, flex the leg
97
semitendonosus
extend thigh, flex the leg
98
semimembranosus
extend thigh/flex the leg
99
tibialis anterior
dorsiflex and inverts foot
100
extensor digitorium longus
dorsiflex foot, extend digits 2-5
101
extensor hallucis longus
extends the big toe, dorsiflex the foot/ankle
102
fibular longus
plantar flex, evert the foot
103
fibular brevis
plantar flex, evert food
104
gastrocnemuius
plantar flex foot/ankle. flex leg/knee
105
soleus
plantar flex foot/ankle
106
popliteus
flexes knee/leg
107
flexor hallucis longus
plantar flexes foot, ankle, big toe
108
flexor digitorum longus
plantar flexes foot, ankle, and toes
109
tibialis posterior
plantar flexes foot, ankle. inverts foot
110
extensor digitorum brevis
extends toes 2-4
111
extensor hallucis brevis
extends big toe
