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Human Anatomy > Muscles > Flashcards

Muscles Flashcards

1
Q

Trapezius

A

O: Occipital bone, C1-T12
I: Lateral clavicle, acromion and spine of scapula
A: Rotates scapula, elevates or depresses shoulder, stabilizes shoulder, retracts scapula

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2
Q

Rhomoideus Major

A

O: T2-T5 spinous processes
I: Vertebral border of scapula
A: Adducts, elevates, and inferiorly rotates scapula

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3
Q

Levator Scapulae

A

O: C1-C4
I: Superior angle of scapula
A: Elevates and adducts scapula, bends neck laterally

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4
Q

Serratus Anterior

A

O: 1-9 ribs
I: Vertebral border of scapula
A: Pulls scapula forward and to the chest

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5
Q

Pectoralis Minor

A

O: 3-5 ribs
I: Coracoid process of scapula
A: Depresses and pulls scapula forward

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6
Q

Rhomboideus Minor

A

O: C7-T1 spinous processes
I: Medial border of scapula, superior to spine
A: Retracts and elevates scapula, inferiorly rotates scapula

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7
Q

Pectoralis Major

A

O: Sternum clavicle costal cartilage
I: Intertubercular groove for humerus
A: Adducts and medially rotates humerus, pulls arm forward

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8
Q

Latissimus Dorsi

A

O: T7-L5, sacrum
I: Intertubercular groove for humerus
A: Adducts and medially rotates humerus, pulls arm back

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9
Q

Muscles that make up rotator cuff

A

Supraspinatus, infraspinatus, subscapularis, teres minor

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10
Q

Supraspinatus

A

O: Supraspinous fossa
I: Head of humerus
A: Hold head of humerus in glenoid fossa

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11
Q

Infraspinatus

A

O: Infraspinous fossa
I: Head of humerus
A: Hold head of humerus in glenoid fossa

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12
Q

Teres Minor

A

O: Inferior angle of scapula
I: Head of humerus
A: Hold head of humerus in glenoid fossa

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13
Q

Subscapularis

A

O: Subscapular fossa
I: Head of humerus
A: Hold head of humerus in glenoid fossa

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14
Q

Teres Major

A

O: Inferior angle of scapula
I: Medial lip of intertubercular groove
A: Adducts and medially rotates the humerus

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15
Q

Coracobrachialis

A

O: Coracoid process of scapula
I: Medial surface of humerus
A: Flexes and adducts the humerus

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16
Q

Deltoid

A

O: Lateral clavicle, acromion and spine of scapula
I: Deltoid tuberosity of humerus
A: Flex, extend, and abduct humerus

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17
Q

Biceps Brachii

A

(shoulder and elbow joints)
O: Supraglenoid tubercle, coracoid process of scapula
I: Radial tuberosity
A: Flexes and supinates forearm, flexes humerus

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18
Q

Brachialis

A

O: Anterior surface of humerus
I: Coronoid process of ulna
A: Flexes forearm

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19
Q

Brachioradialis

A

O: Above lateral epicondyle of humerus
I: Styloid process of radius
A: Flexes forearm

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20
Q

Triceps Brachii

A

O: Infraglenoid tubercle of scapula, lateral head of humerus, medial head of humerus
I: Olecranon process of ulna
A: Extends forearm and humerus

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21
Q

Pronator Quadratus

A

(crosses distal radioulnar joint)
O: Ventral surface of ulna, anterior and medial distal ulna
I: Ventral surface of radius, anterior and lateral distal radius
A: Pronation

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22
Q

Pronator Teres

A

(crosses proximal radioulnar joint)
O: Medial epicondyle of humerus
I: Lateral surface of radius
A: Pronates forearm

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23
Q

Flexor Carpi Radialis

A

O: Medial epicondyle of humerus
I: Carpals, metacarpals, and palmar aponeursis
A: Flexion of wrist

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24
Q

Palmaris Longus

A

O: Medial epicondyle of humerus
I: Carpals, metacarpals, and palmar aponeursis
A: Flexion of wrist

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25
Q

Flexor Carpi Ulnaris

A

O: Medial epicondyle of humerus
I: Carpals, metacarpals, and palmar aponeursis
A: Flexion of wrist

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26
Q

Flexor Digitorum Superficialis

A

O: Ulna and radius, medial epicondyle of humerus
I: Phalanges
A: Flexion of the digits and wrist

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27
Q

Flexor Digitorum Profundus

A

O: Ulna and radius, medial epicondyle of humerus
I: Phalanges
A: Flexion of the digits and wrist

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28
Q

Extensor Carpi Radialis Longus

A

O: Lateral epicondyle of humerus
I: Metacarpals and phalanges
A: Extension of wrist

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29
Q

Extensor Carpi Radialis Brevis

A

O: Lateral epicondyle of humerus
I: Metacarpals and phalanges
A: Extension of wrist

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30
Q

Extensor Carpi Ulnaris

A

O: Lateral epicondyle of humerus
I: Metacarpals and phalanges
A: Extension of wrist

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31
Q

Extensor Digitorum

A

O: Lateral epicondyle of humerus
I: Metacarpals and phalanges
A: Extension of wrist and digits

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32
Q

Extensor Indicis

A

(crosses interphalaneal or metacarpal-phalangeal joint)
O: Posterior ulna
I: Posterior surface of proximal phalanx of second digit
A: Extends index finger

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33
Q

Extensor Digiti Minimi

A

O: Lateral epicondyle of humerus
I: Posterior surface of proximal phalanx of fifth digit
A: Extend the little finger

34
Q

Lumbricales

A

A: Flexes metacarpo-phalangeal joint

35
Q

Dorsal Interossei

A

A: Abducts fingers from middle finger

36
Q

Psoas Major (Minor)

A

(1/2 of Iliopsoas)
O: Lumbar vertebrae
I: Lesser trochanter
A: Flex hip joint

37
Q

Ilicus

A

(1/2 of Iliopsoas)
O: Iliac Fossa
I: Lesser trochanter
A: Flex hip joint

38
Q

Gluteus Maximus

A

O: Iliac crest, sacrum, coccyx
I: Below greater trochanter of femur, iliotibil tract of the fasciae latae
A: Extends and laterally rotates hip

39
Q

Gluteus Medius

A

O: Lateral surface of ilium
I: Greater trochanter of femur
A: Abducts and medially rotates hip joint

40
Q

Gluteus Minimus

A

O: Lateral surface of ilium
I: Greater trochanter of femur
A: Abducts and medially rotates hip joint

41
Q

Tensor Fasciae Latae

A

O: Anterior iliac crest
I: Tibia (by way of iliotibial tract)
A: Abducts hip

42
Q

Pectineus

A

O: Superior pubic ramus
I: Below trochanter
A: Adducts femur in hip joint, flexes hip

43
Q

Adductor Brevis

A

O: Inferior ramus of pubis and ischium
I: Upper 1/3 of linea aspera of femur
A: Adducts femur in hip joint

44
Q

Adductor Longus

A

O: Inferior ramus of pubis and ischium
I: Middle 1/3 of linea aspera
A: Adducts femur in hip joint

45
Q

Adductor Magnus

A

O: Inferior ramus of pubis and ischial tuberosity
I: Entire linea aspera
A: Adducts femur in hip joint

46
Q

Gracilis

A

O: Inferior ramus of pubis and ischium
I: Proximal end of tibia
A: Adducts femur in hip joint, flexes knee

47
Q

Vastus Lateralis

A

O: Shaft of femur
I: Tibial tuberosity
A: Extend knee

48
Q

Vastus Medialis

A

O: Shaft of femur
I: Tibial tuberosity
A: Extend knee

49
Q

Vastus Intermedius

A

O: Shaft of femur
I: Tibial tuberosity
A: Extend knee

50
Q

Rectus Femoris

A

O: Anterior inferior iliac spine
I: Tibial tuberosity
A: Flexes hip joint, extends knee

51
Q

Sartorius

A

O: Anterior superior iliac spine
I: Proximal tibia medially
A: Flexes hip joint, rotates thigh laterally, flexes knee joint

52
Q

Iliopsoas

A

O: Iliac fossa and vertebra (T12-L5)
I: Lesser trochanter of femur
A: Flexes hip

53
Q

Biceps femoris

A

O: Ischial tuberosity, linea aspera of femur
I: head of fibula
A: Flex the knee joint

54
Q

Muscles of the hamstrings

A

Biceps femoris, semitendinosus, semimembranosus

55
Q

Semitendinosis

A

O: Ischial tuberosity
I: Head of tibia medially
A: Flex the knee joint

56
Q

Semimembranosus

A

O: Ischial tuberosity
I: Posterior side of medial condyle of tibia
A: Flex the knee joint

57
Q

Tibialis Anterior

A

O: Lateral side of tibia
I: Medially, tarsals and metatarsals
A: Dorsiflex foot

58
Q

Extensor Digitorum

A

O: Shaft of fibula
I: Phalanges
A: Dorsiflex foot

59
Q

Gastrocnemius

A

O: Lateral and medial condyles of femur
I: Calcaneus via Achilles tendon
A: Plantarflex foot

60
Q

Soleus

A

O: Posterior proximal end of fibula, middle of tibia
I: Calcaneus via Achilles tendon
A: Plantarflex foot

61
Q

Fibularis Longus

A

O: Shaft of fibula
I: V Metatarsal
A: Everts foot

62
Q

Fibularis Brevis

A

O: Shaft of fibula
I: V Metatarsal
A: Everts foot

63
Q

Rectus Abdominus

A

O: Pubic bone
I: Xiphoid process, costal cartilage of ribs
A: Flexes trunk, rotates trunk, laterally bends trunk, increases intra-abdominal pressure during defecation/urination/vomiting/expiration

64
Q

External Oblique

A

O: Lower 8 ribs
I: Iliac crest, linea alba
A: Flexes trunk, rotates trunk, laterally bends trunk, increases intra-abdominal pressure during defecation/urination/vomiting/expiration

65
Q

Internal Oblique

A

O: Iliac crest, inguinal ligament, thoracolumbar fascia
I: Ribs and costal cartilage, linea alba
A: Flexes trunk, rotates trunk, laterally bends trunk, increases intra-abdominal pressure during defecation/urination/vomiting/expiration

66
Q

Transversus Abdominus

A

O: Iliac crest, inguinal ligament, thoracolumbar fascia, costal cartilage
I: Linea alba, crest of pubis
A: Flexes trunk, rotates trunk, laterally bends trunk, increases intra-abdominal pressure during defecation/urination/vomiting/expiration

67
Q

Name the abdominal muscles

A

Rectus abdominis, external oblique, internal oblique, transversus abdominus

68
Q

Diaphragm

A

O: Xiphoid process, costal cartilage of lower 6 ribs, lumbar vertebrae
I: Central tendon
A: Inspiration

69
Q

External Intercostals

A

O: Inferior border of rib above
I: Superior border of rib below
A: Elevate ribs during inspiration

70
Q

Internal Intercostals

A

????

71
Q

Sternocleidomastoid

A

O: Manubrium and clavicle
I: Mastoid process
A: Rotates the head, flexion of the head and neck

72
Q

Erector Spinae Group

A

(Long deep muscles of the back)

73
Q

Occipitofrontalis

A 
(frontal belly)
O: Frontal bone
I: Epicranial aponeurosis
A: Wrinkles forehead skin transversely
(occipital belly)
O: Occipital bone-superior nuchal line
A: Draws scalp backward
74
Q

Orbicularis Oculi

A

O: Medial wall of orbit
I: Eyelid
A: Closes eyelids (squinting, blinking)

75
Q

Orbicularis Oris

A

(“kissing muscle”)
O: Maxilla and mandible
I: Skin around mouth
A: Brings lips together, protrudes lips

76
Q

Buccinator

A

O: Maxilla
I: Orbicularis oris and skin
A: Compresses cheek to hold food between teeth during chewing, produces action of sucking

77
Q

Risorius

A

O: Fascia masseter muscle
I: Angle of mouth
A: Smile

78
Q

Masseter

A

O: Zygomatic arch
I: Angle and ramus of mandible (on lateral side)
A: Elevates mandible (closes mouth)

79
Q

Temporalis

A

O: Portions of frontal, parietal, and temporal bones
I: Coronoid process of mandible
A: Elevates mandible (closes mouth)

80
Q

Medial Pterygoid

A

A: Elevates and protracts mandible, produces side to side movement of mandible

81
Q

Lateral Pterygoid

A

A: Elevates and protracts mandible, produces side to side movement of mandible

Human Anatomy (8 decks)

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