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Anatomy + Physiology > Muscles > Flashcards

Muscles Flashcards

1
Q

O: CORACOID process of scapula, I: humerus A: flexes + adducts arm

A

Coracobrachialis

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2
Q

O: lateral border of scapula, I: intertubercular groove of humerus, A: extends arm/adducts/rotates medially

A

Teres major

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3
Q

O: sacral, lumbar, thoracic vertebrae, I: humerus, A: extends/adducts/rotates arm, pulls shoulder down

A

Latissimus dorsi

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4
Q

O: posterior surface of scapula, I: greater tubercle of humerus A: adducts arm

A

Supraspinatus

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5
Q

O: clavicle, sternum, upper ribs, I: intertubercular groove of humerus, A: pulls arm ant./rotates humerus/adducts arm

A

Pectoralis major

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6
Q

O: acromion process, spine of scapula, clavicle, I: DELTOID teberosity of humerus, A: Abducts arm, extends/flexes humerus

A

Deltoid

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7
Q

O: anterior surface of scapula, I: lesser tubercle of humerus, A: rotates arm medially

A

Subscapularis

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8
Q

O: posterior surface of scapula, I: greater tubercle of humerus, A: rotates arm laterally

A

Infraspinatus

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9
Q

O: lateral border of scapula, I: greater tubercle of humerus, A: rotates arm laterally

A

Teres minor

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10
Q

O: gleniod cavity of scapula, I: radial tuberosity of radius, A: flexes forearm at elbow and rotates hand laterally

A

Biceps Brachii

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11
Q

O: anterior shaft of humerus, I: coronoid process of ulna, A: flexes forearm at elbow

A

Brachialis

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12
Q

O: distal lateral end of humerus, I: lateral surface of radius, A: flexes forearm at elbow

A

Brachioradialis

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13
Q

O: lateral + medial surfaces of humerus, I: olecranon process of ulna, A: extends forearm at elbow

A

Triceps brachii

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14
Q

O: lateral epicondyle of humerus, crest of ulna, I: lateral surface of radius, A: rotates forearm laterally

A

Supinator

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15
Q

O: medial epicondyle of humerus, coronoid process of ulna, I: lateral surface of radius, A: rotates forearm medially

A

Pronator teres

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16
Q

O anterior distal end of ulna, I: anterior distal end of radius, A: rotates forearm medially

A

Pronator quadratus

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17
Q

O: medial epicondyle of humerus, I: base of 2nd + 3rd metacarpals, A: flexes and abducts wrist

A

Flexor carpi radialis

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18
Q

O: medial epicondyle of humerus, I: carpal + metacarpal bones, A: flexes and adducts wrist

A

Flexor carpi ulnaris

19
Q

O: medial epicondyle of humerus, I: fascia of palm, A: flexes wrist

A

Palmaris longus

20
Q

O: anterior surface of ulna, I: bases of distal phalanges, A: flexes distal joints of fingers

A

Flexor digitorum profundus

21
Q

O: distal end of humerus, I: base of second metacarpal, A: extends wrist and abducts hand

A

Extensor capri radialis longus

22
Q

O: lateral epicondyle of humerus, base of second and third metacarpals, A: extends wrist and abducts hand

A

Extensor carpi radialis brevis

23
Q

O: lateral epicondyle of humerus, base of 5th metacarpal, A: extends and adducts wrist

A

Extensor carpi ulnaris

24
Q

O: lateral epicondyle of humerus, I: posterior surface of phalanges, A: extends fingers

A

Extensor digitorum

25
Q

O: outer surface of lower ribs, I: outer lip of iliac crest+ linea alba, A: tenses abdominal wall+ compress. ab. contents

A

External oblique

26
Q

O: crest of ilium+inguinal ligament, I: cartilage of lower rib, crest of pubis, A: tense ab. wall+compresses ab. contents

A

Internal oblique

27
Q

O: cost. cart. of lower ribs, lumbar vertebrae, iliac crest, inguinal ligament, I: linea alba + pubis crest, A: Tenses abdominal wall and compresses abdominal contents

A

Transversus abdominis

28
Q

A: crest of pubis+symphysis pubis, I: sternum+ coastal cartilages, A: Tenses A. wall.+compress AC, flex vertebral column

A

Rectus abdominus

29
Q

ORIGIN: occipital bone, INSERTION: skin + muscles around eye, ACTION: raises eyebrow

A

Epicranius

30
Q

ORIGIN: Maxillary and frontal bones, INSERTION: Skin around eye, ACTION: Closes eye

A

Orbicularis oculi

31
Q

ORIGIN: Muscles near the mouth, INSERTION: skin of lips, ACTION: closes and protrudes lips

A

Orbicularis oris

32
Q

ORIGIN: Outer surfaces of maxilla and mandible, INSERTION: Orbicularis oris, ACTION: Compresses cheeks inward

A

Buccinator

33
Q

ORIGIN: Zygomatic bone, INSERTION: Orbicularis oris, ACTION: Raises corner of mouth

A

Zygomaticus

34
Q

ORIGIN: Fascia in upper chest, INSERTION: Lower border of mandible, ACTION: Draws angle of mouth downward

A

Platysma

35
Q

ORIGIN: Lower border of zygomatic arch, INSERTION: Lateral surface of mandible, ACTION: Closes jaw

A

Masseter

36
Q

ORIGIN: Temporal bone, INSERTION: coronoid process and lateral surface of mandible, ACTION: Closes jaw

A

Temporalis

37
Q

O: ant. surf. of sternum/upper surf. of clavicle, I: mastoid process-temporal bone, A: pull head side/down raise sternum

A

Sternocleidomastoid

38
Q

O:Spinous processes of lower cervical + upper thoracic vertebrae, I: Mastoid process of temporal bone, A: rotates head

A

Splenius Capitis

39
Q

O: processes of lower cervical + upper thoracic vertebrae, I: occipital bone, A: extends/bends/rotates head

A

Semispinalis capitis

40
Q

O: occipital bone + spines of cervical/thoracic vertebrae, I: clavicle/spine/scapula, A: rotates scapula raises arm

A

Trapezius

41
Q

O: spines of upper thoracic vertebrae, I: medial border of scapula, A: raises + adducts scapula

A

Rhomboideus major

42
Q

O: Transverse process of cervical vertebrae, I: Medial margin of scapula, A: Elevates scapula

A

Levator scapula

43
Q

O: outer surfaces of upper ribs, I: ventral surface of scapula, A: pulls scapula anteriorly + downward

A

Serratus anterior

44
Q

O: Sternal ends of upper ribs, I: coracoid process of scapula, A: pulls scapula anteriorly + downward or raises ribs

A

Pectoralis minor

Anatomy + Physiology (7 decks)

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