Arms : Muscles Flashcards

0
Q

Infraspinatus

A

Muscle in the infraspinous fossa of scapula. A rotator cuff.
A: circumduction of humerus O: infraspinous fossa of scapula
I: greater tubercle of humerus

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1
Q

Supraspinatus

A

Superior muscle on in supraspinous fossa. A rotator cuff.
A: circumduction of humerus O: supraspinous fossa of scapula
I: greater tubercle of humerus

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2
Q

Teres minor

A

Muscle inferior to Infraspinatus. Insertion is OVER triceps brachii long head. A rotator cuff.
A: circumduction of humerus I: greater tubercle of humerus

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3
Q

Subscapularis

A

Muscle on the back side of the scapula facing ribs.

A: circumduction of humerus O: subscapular fossa of scapula I: lesser tubercle of humerus

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4
Q

Teres major

A

Muscle inferior to teres minor. Muscle connects UNDER triceps brachii long head.
A: adduction of humerus I:Intertubercular sulcus of humerus

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5
Q

Rhomboid major

A

Muscle next to spine but inferior to rhomboid minor.

A: retraction of scapula I: medial border of scapula

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6
Q

Rhomboid minor

A

Muscle next to spine but superior to rhomboid major.

A: retraction of scapula I: medial border of scapula

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7
Q

Serratus anterior

A

By external abdominal oblique. Jagged muscle.

A: protraction of scapula I: medial border of scapula

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8
Q

Latissimus dorsi

A

“Lats” muscles. Side muscles. Deeper

A: adduction of humerus O: lumbar vertebrae I: Intertubercular sulcus of humerus.

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9
Q

Trapezius

A

Big triangular muscle all across back. Most superficial.

A: elevation, depression, and retraction of scapula O: cervical and thoracic vertebrae I: spine of scapula

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10
Q

Deltoid

A

Shoulder muscle. A: abduction of humerus. O: acromion and spine of scapula I: deltoid tuberosity of humerus

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11
Q

Pectoralis major

A

Most superficial pec muscle. A: adduction and flexion of humerus O: sternum and clavicle I: Intertubercular sulcus of humerus

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12
Q

Pectoralis minor

A

Smaller pec muscles deeper. A: protraction of scapula I: coracoid process of scapula

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13
Q

Triceps brachii long head

A

Articulates with teres minor. A: extends elbow (forearm) I: Olecranon process of ulna

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14
Q

Triceps brachii lateral head

A

Lateral to long head. A: extends elbow (forearm) I: Olecranon process of ulna

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15
Q

Triceps brachii medial head

A

Medial and deep. A: extends elbow (forearm) I: Olecranon process of ulna

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16
Q

Biceps brachii

A

Biggest and most anterior. A: flexes elbow; supinates forearm I: radial tuberosity of radius

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17
Q

Brachialis

A

Deeper to biceps brachii. Under biceps brachii. A: flexes elbow O: shaft of humerus I: Coronoid process of ulna

18
Q

Coracobrachialis

A

Skinny muscle from armpit/ anterior. A: adduction of humerus O: coracoid process of scapula

19
Q

Cubital fossa

A

Hollow spot in elbow space. Anterior

20
Q

Pronator teres

A

More proximal muscle to palmaris longus. Anterior and superficial. A: pronates forearm

21
Q

Flexor carpi radialis

A

Muscle anterior on radial side. Superficial.

A: flexes wrist, radial deviation of hand O: medial epicondyle of humerus

22
Q

Palmaris longus

A

Muscle in between flexor carpi radialis and ulnaris. Anterior and superficial.
A: flexes wrist O: medial epicondyle of humerus

23
Q

Flexor carpi ulnaris

A

Muscle anterior and superficial on ulnar side. A: flexes wrist, ulnar deviation of ulna O: medial epicondyle of humerus

24
Q

Flexor digitorum superficialis

A

Muscle deeper than flexor carpi muscles. Directly underneath

A: flexes fingers

25
Q

Flexor digitorum profundus

A

Deep muscle more on lateral side of anterior side.

A: flexes fingers

26
Q

Flexor pollicis longus

A

Muscle deep on medial side anterior side.

A: flexes thumb

27
Q

Pronator quadratus

A

Square muscle close wrist. Very deep on anterior side.

A: pronates forearm.

28
Q

Flexor retinaculum

A

Connective sheath tissue that covers the carpel tunnel.

29
Q

Brachioradialis

A

A: flexes elbow

30
Q

Extensor carpi radialis longus

A

A: extends wrist; radial deviation of hand

31
Q

Extensor carpi radialis brevis

A

A: extends wrist; radial deviation of hand O: lateral epicondyle of humerus

32
Q

Extensor digitorum

A

A: extends fingers O: lateral epicondyle of humerus

33
Q

Extensor digiti minimi

A

A: extends little finger O: lateral epicondyle of humerus

34
Q

Extensor carpi ulnaris

A

A: extends wrist; ulnar deviation of hand O: lateral epicondyle of humerus

35
Q

Aconeus

A

A:

36
Q

Supinator

A

A: Supinates forearm

37
Q

Abductor pollicis longus

A

A: abducts thumb

38
Q

Extensor pollicis brevis

A

A: extends thumb

39
Q

Extensor pollicis longus

A

A: extends thumb

40
Q

Extensor indicis

A

A: extends index finger

41
Q

Extensor retinaculum

A

Connective tissue sheath that contains extensor tendons

42
Q

Thenar group

A

Group of four muscles. Move thumb

43
Q

Abductor digiti minimi

A

Muscle on pinky side. A: abducts little finger.