Muscles of the body A&P 1

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72 Terms

1
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Occipitofrontalis (frontal belly)

elevates eyebrows and wrinkles forehead

<p>elevates eyebrows and wrinkles forehead</p>
2
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occipitofrontalis (occipital belly)

tenses and retracts scalp

<p>tenses and retracts scalp</p>
3
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orbicularis oculi

closes eye

<p>closes eye</p>
4
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orbicularis oris

compresses and purses lips

<p>compresses and purses lips</p>
5
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platysma

depresses mandible, pulls lip down and back

<p>depresses mandible, pulls lip down and back</p>
6
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digastric muscle

depresses mandible to open mouth

<p>depresses mandible to open mouth</p>
7
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masseter

elevates mandible to close mouth

<p>elevates mandible to close mouth</p>
8
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omohyoid

depresses hyoid

<p>depresses hyoid</p>
9
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sternohyoid

depresses hyoid

<p>depresses hyoid</p>
10
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scalenes

elevates ribs and flexes neck

<p>elevates ribs and flexes neck</p>
11
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sternocleidomastoid

together: flexes at neck, elevates sternum and clavicle; alone: laterally rotates head/ tilts head

<p>together: flexes at neck, elevates sternum and clavicle; alone: laterally rotates head/ tilts head</p>
12
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rectus abdominis

compresses abdomen, flexes spine, depress ribs

<p>compresses abdomen, flexes spine, depress ribs</p>
13
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external oblique

compresses abdomen, lateral flexion/rotation of spine

<p>compresses abdomen, lateral flexion/rotation of spine</p>
14
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internal oblique

compresses abdomen, lateral flexion/rotation of spine

<p>compresses abdomen, lateral flexion/rotation of spine</p>
15
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transversus abdominis

compresses abdomen

<p>compresses abdomen</p>
16
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pectoralis major

flexes, adducts, and medially rotates at shoulder

<p>flexes, adducts, and medially rotates at shoulder</p>
17
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pectoralis minor

elevates ribs, protracts shoulder, rotates scapula downward

<p>elevates ribs, protracts shoulder, rotates scapula downward</p>
18
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serratus anterior

elevates ribs, protracts shoulder, rotates scapula upward

<p>elevates ribs, protracts shoulder, rotates scapula upward</p>
19
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external intercostals

elevates ribs

<p>elevates ribs</p>
20
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internal intercostals

depresses ribs

<p>depresses ribs</p>
21
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diaphragm

expands thoracic cavity

<p>expands thoracic cavity</p>
22
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trapezius

elevates, adducts, depresses scapula and extends at neck

<p>elevates, adducts, depresses scapula and extends at neck</p>
23
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splenius capitis

together- extends at neck, alone- flex/laterally rotate neck

<p>together- extends at neck, alone- flex/laterally rotate neck</p>
24
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levator scapulae

elevates scapula

<p>elevates scapula</p>
25
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rhomboid major

adducts scapula

<p>adducts scapula</p>
26
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rhomboid minor

adducts scapula

<p>adducts scapula</p>
27
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longissimus thoracis

together- extends spine, alone- lateral flexion of spine

<p>together- extends spine, alone- lateral flexion of spine</p>
28
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iliocostalis thoracis

together- extends spine, alone- lateral flexion of spine

<p>together- extends spine, alone- lateral flexion of spine</p>
29
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latissimus dorsi

extends, adducts, and medially rotates at shoulder

<p>extends, adducts, and medially rotates at shoulder</p>
30
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deltoid

flex, abducts, extends at shoulder

<p>flex, abducts, extends at shoulder</p>
31
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subscapularis

medial rotation at shoulder

<p>medial rotation at shoulder</p>
32
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Supraspinatus

abducts at shoulder

<p>abducts at shoulder</p>
33
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infraspinatus

laterally rotates at shoulder

<p>laterally rotates at shoulder</p>
34
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teres minor

laterally rotates at shoulder

<p>laterally rotates at shoulder</p>
35
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teres major

extends, adducts, medially rotates at shoulder

<p>extends, adducts, medially rotates at shoulder</p>
36
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triceps brachii

extends at elbow, extends and adducts at shoulder

<p>extends at elbow, extends and adducts at shoulder</p>
37
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biceps brachii

flexes at elbow and shoulder, supinates at forearm

<p>flexes at elbow and shoulder, supinates at forearm</p>
38
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brachialis

flexes at elbow

<p>flexes at elbow</p>
39
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brachioradialis

flexes at elbow

<p>flexes at elbow</p>
40
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supinator

supinates at forearm

<p>supinates at forearm</p>
41
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pronator teres

pronates at forearm

<p>pronates at forearm</p>
42
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flexor carpi radialis

flexes and abducts at wrist

<p>flexes and abducts at wrist</p>
43
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palmaris longus

flexes at wrist

<p>flexes at wrist</p>
44
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flexor carpi ulnaris

flexes and adducts at wrist

<p>flexes and adducts at wrist</p>
45
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extensor carpi ulnaris

extends and adducts at wrist

<p>extends and adducts at wrist</p>
46
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extensor digitorum

extends at interphalangeal joints of hand

<p>extends at interphalangeal joints of hand</p>
47
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extensor carpi radialis brevis

extends and abducts at wrist

<p>extends and abducts at wrist</p>
48
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extensor carpi radialis longus

extends and abducts at wrist

<p>extends and abducts at wrist</p>
49
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iliacus

flexes at hip

<p>flexes at hip</p>
50
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psoas major

flexes at hip, flexes spine

<p>flexes at hip, flexes spine</p>
51
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sartorius

flexes at knee and hip, laterally rotates hip

<p>flexes at knee and hip, laterally rotates hip</p>
52
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pectineus

flexes and adducts at hip

<p>flexes and adducts at hip</p>
53
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adductor longus

flexes and adducts at hip

<p>flexes and adducts at hip</p>
54
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adductor magnus

flexes and adducts at hip

<p>flexes and adducts at hip</p>
55
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gracilis

flexes at knee and adducts at hip

<p>flexes at knee and adducts at hip</p>
56
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rectus femoris

flexes at hip, extends at knee

<p>flexes at hip, extends at knee</p>
57
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vastus lateralis

extends at knee

<p>extends at knee</p>
58
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vastus medialis

extends at knee

<p>extends at knee</p>
59
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vastus intermedius

extends at knee

<p>extends at knee</p>
60
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tensor fasciae latae

flexes and abducts at hip

<p>flexes and abducts at hip</p>
61
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gluteus maximus

extends at hip

<p>extends at hip</p>
62
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gluteus medius

abducts and medially rotates at hip

<p>abducts and medially rotates at hip</p>
63
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piriformis

laterally rotates at hip

<p>laterally rotates at hip</p>
64
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biceps femoris

extends at hip, flexes at knee

<p>extends at hip, flexes at knee</p>
65
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semitendinosus

extends at hip and flexes at knee

<p>extends at hip and flexes at knee</p>
66
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semimembranosus

extends at hip and flexes at knee

<p>extends at hip and flexes at knee</p>
67
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tibialis anterior

dorsiflexes at ankle, inverts foot

<p>dorsiflexes at ankle, inverts foot</p>
68
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extensor digitorum longus

extends at interphalangeal joints

<p>extends at interphalangeal joints</p>
69
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fibularis longus

plantar flexes at ankle, everts foot

<p>plantar flexes at ankle, everts foot</p>
70
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gastrocnemius

plantar flexes at ankle, flexes at knee

<p>plantar flexes at ankle, flexes at knee</p>
71
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soleus

platar flexes at ankle

<p>platar flexes at ankle</p>
72
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plantaris

plantar flexes at ankle

<p>plantar flexes at ankle</p>