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Anatomy & Physiology > Practical Two Muscles & Actions > Flashcards

Practical Two Muscles & Actions Flashcards

(65 cards)

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1
Q

Orbicularis oculi

A

Closes eyes

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2
Q

Orbicularis oris

A

Closes lips

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3
Q

Buccinator

A

Compresses cheek

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4
Q

Masseter

A

Prime mover of jaw closure

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5
Q

Platysma

A

Tenses skin of neck, “shaving muscle”

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6
Q

Sternocleidomastoid

A

Flexion of neck forwards

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7
Q

Scalenes (Anterior, Middle, and Posterior)

A

Elevate ribs 1 and 2

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8
Q

Pectoralis major

A

Prime mover of arm flexion, adducts and medially rotates arm

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9
Q

Serratus anterior

A

Prime mover to protract and hold scapula against the chest wall, rotates scapula

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10
Q

Deltoid

A

Prime mover of arm abduction

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11
Q

Pectoralis minor

A

Draws scapula forward and inferiorly

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12
Q

External intercostals

A

Pull ribs toward each other for rib elevation

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13
Q

Internal intercostals

A

Draw ribs together for rib cage depression

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14
Q

Diaphragm

A

Prime mover of inspiration, flattens during contraction

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15
Q

Rectus abdominis

A

Flexes/Rotates vertebral column

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16
Q

External oblique

A

Compresses abdominal wall

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17
Q

Internal oblique

A

Compresses abdominal wall

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18
Q

Trapezius

A

Raises, rotates, and adducts scapula

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19
Q

Latissimus dorsi

A

Prime mover of arm extension, adducts and medially rotates arm

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20
Q

Infraspinitus

A

Lateral rotation of humerus

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21
Q

Teres minor

A

Lateral rotation of humerus

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22
Q

Teres major

A

Extends, medially rotates, and adducts humerus

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23
Q

Supraspinitus

A

Initiates abduction of humerus

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24
Q

Erector spinae (From most lateral to most medial: Iliocostales, Longissimus, and Spinalis)

A

Extend and bend vertebral column laterally

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25
Splenius
Extend or hyperextend head
26
Tricep brachii
Powerful forearm extensor
27
Bicep brachii
Powerful elbow flexor and supinator
28
Brachioradialis
Synergist in forearm flexion
29
Brachialis
Forearm flexion
30
Pronator teres
Pronate forearm
31
Flexor carpi radialis
Flexor of wrist and abducts hand
32
Flexor carpi ulnaris
Flexor of wrist and adducts hand
33
Flexor digitorum superficialis
Flexes fingers 2-5
34
Flexor pollicis longus
Flexes thumb
35
Flexor digitorum profundus
Flexes distal phalanges
36
Pronator quadrus
Pronates forearm
37
Extensor carpi radialis longus
Extends and abducts wrist
38
Extensor carpi radialis brevis
Extends and abducts wrist
39
Extensor digitorum
Prime mover of finger extension
40
Extensor carpi ulnaris
Extends and adducts wrist
41
Extensor pollicis longus and brevis
Extend thumb
42
Abductor pollicis longus
Abducts and extends thumb
43
Supinator
Supinates forearm (with help of bicep brachii)
44
Iliopsoas (Iliacus and Psoas major)
Flex trunk and thigh, lateral flexion of vertebral column
45
Sartorius
Flexes, abducts, and laterally rotates thigh; flexes knee
46
Adductors (Magnus, Longus, and Brevis) of leg
Adducts/medially rotate and flex thigh
47
Gracilis
Adduct thigh, flex and medially rotate leg
48
Rectus femoris
Extend knee and flex thigh
49
Vastus lateralis
Extend/Stabilize knee
50
Vastus medialis
Extend knee
51
Vastus intermedius
Extend knee
52
Tensor faciae latae
Steadies trunk
53
Gluteus maximus
Thigh extensor
54
Gluteus medius
Abducts and medially rotates thigh
55
Biceps femoris
Extend thigh and flex knee
56
Semitendinosus
Extend thigh and flex knee
57
Semimembranosus
Extend thigh and flex knee
58
Tibialis anterior
Prime mover or dorsiflexion
59
Extensor digitorum longus
Prime mover of toe extension
60
Extensor hallucis longus
Extends great toe
61
Gastrocnemius
Plantar flexes foot
62
Soleus
Plantar flexion
63
Tibialis posterior
Prime mover of foot inversion
64
Flexor digitorum longus
Flexes toes, also plantar flexes and inverts foot
65
Flexor hallucis longus
Flexes great toe, also plantar flexes and inverts foot

Anatomy & Physiology (3 decks)

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