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S&F 1 > Muscles Test I > Flashcards

Muscles Test I Flashcards

1
Q

Supinator

A

Nerve: Radial n. and deep radial n.

Function: supination of forearm

Artery: radial reccurrent a.

Origin: lateral epicondyle, proximal ulna,, and radial collateral and annular ligament

Insertion: shaft of radius

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2
Q

What are the deep posterior muscles of the forearm?

A

Supinator

Abductor pollicis longus

Extensor pollicis brevis

Extensor policis longus

Extensor indicis

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3
Q

adductor pollicis accessorius

(pollical palmar interosseous muscle of Henle)

A

Nerve: Deep branch of ulnar n.

Function: weak adduction and/or flexion of proximal phalanx of thumb (mainly unknown)

Artery: Radial a. (perhaps from princeps pollicis a. that branches from it

Origin: Bases of metacarpal 1

Innervation: Base of proximal phalanx of thumb and surrounding structures

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4
Q

Subclavius

A

Nerves: N. to subclavius

Function: Depression of clavicle

Artery: Clavicular branch of thoracoacromial trunk

Origin: 1st rib and its cartilage

Insetrion: Subclavian groove of clavicle

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5
Q

Pectoralis major

A

Nerves: Lateral pectoral n. and medial pectoral n.

Function: Flexion, adduction, and medial rotation of the arm

Artery: Pectoral branch of thoracoacromial trunk

Origin: Clavicle, sternum/ribs, and mainly aponeurosis of external oblique muscles

Insetrion: Lateral lip of intertubercualr groove of humerus

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6
Q

Palmar (Volar) interossei 1, 2, and 3

A

Nerve: Deep branch of ulnar n.

Function: adduct digits 2 to ulnar side and digits 4 and 5 to radial side, respectively

Artery: deep palmar a.

Origin: metacarpals (DI:1-5; PI:2-5)

Insertion: Ulnar side of proximal phalanx and extensor expansion of digit 2 and radial sides of proximal phalanges of digits 4 and 5

PAD

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7
Q

What are the anterior muscles of the shoulder girdle?

A

Serratus anteriror

Subclavius

Pectoralis major

Pectoralis minor

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8
Q

Flexor Pollicis brevis

(superficial and deep heads)

(thenar muscle)

A

Nerve: Reccurent branch of median n.

deep, and to a lesser extent superficial, heads - deep branch of the ulnar n.

Function: Flexion of proximal phalanx of thumb

Artery: Superficial palmar arch

Origin: Trapezium, transverse carpal ligament

Insertion: Volar proximal phalanx of thumb

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9
Q

Trapezius

A

Nerves: Motor = accessory n. ; Sensory = C3 & C4

Function: Elevatio of scapula and upward rotation; retraction of the scapula; depression of the scapula and upward rotation

Artery: Transverse cervical artery

Origin: External ocipital proteuberance, C1-C7; C7-T5; T5-T12

Insertion: Posterior border of lateral 1/3 of clavicle; scapular spine and medial portion of acromion; medial portion of the scapula spine

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10
Q

Dorsal interossei 1,2,3 and 4

A

Nerve: Deep branch of ulnar n.

Function: abduct digits 2 and 3 to radial side and 3 and 4 to ulnar side, respectively

Artery: deep palmar a.

Origin: Metacarpals (DI: 1-5; PI 2-5)

Insertion: radial sides of proximal phalanges and extensor expansions of digit 2 and 3, and ulnar side of proximal phalanges of digits 3 and 4

DAB

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11
Q

Extensor digiti minimi

A

Nerve: Radial n

Function: Extension of digit 5 (both middle and distal ohalanges)

Artery: Posterior interosseous a.

Origin Lateral epicondyle of humerus

Insertion: Extensor expansion of digit 5 (reach both middle nad distal phalanges)

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12
Q

Flexor digitorium Superficialis

A

Nerve: Median N.

Function: Flexion of hand and digit 2-5 (middl phalanges, so at the proximal interphalangeal joints)

Artery: Ulnar a.

Origin: Medial Epicondyle of the humerus, ulna, and oblique line of radius

Insertion: Middle phalanges of digits 2-5

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13
Q

Brachioradialis

A

Nerve: Radial n.

Function: Flexor of forearm

Artery: Radial recurrent a.

Origin Lateral supracondylar ridge of humerus

Insertion: Distal radius, including styloid process

This muscle looks like an anterior forearm muscle

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14
Q

Palmaris brevis

A

Nerve: Superficial branch of the ulnar n.

Function: pulling of skin over hypothenar eminence

Artery: Palmar arches

Origin: Flexor retinaculum and palmar aponeurosis

Insertion: skin over hypothenar eminence

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15
Q

Aconeus

A

Nerve: Radial n.

Function: Extension of forearm

Artery: Deep brachial a. and recurrent interosseous a.

Origin: lateral epicondyle of humerus

Insertion: Olecron process of adjacent portion of ulna, annular ligament

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16
Q

Pronator Quadratus

A

Nerve: Median n (anterior interosseous n.)

Function: Pronation of forearm

Artery: anterior interosseous a.

Origin: Distal Ulna

Insertion: Distal radius

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17
Q

Levator Scapulae

A

Nerves: Dorsal Sccapular n.

Function: Middle rotation of the scapula and elevation of the scapula

Artery: Dorsal scapular a.

Origin: Transverse process of C1-C4

Insetrion: Medial border of scapula, superior angle

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18
Q

What are the hypothenar muscles ?

A

Abductor digiti minimi

Flexor digiti minimi brevis

Opponens digiti minimi

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19
Q

Teres Major

A

Nerves: Lower subscapular n.

Function: Medial rotation and adduction of the arm

Artery: Subscapular a. and circumflex scapular a.

Origin: Inferior angle of scapula

Insetrion: Medial lip of inertubercular humerus

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20
Q

Brachialis

A

Nerve: Musculocutaneous n.

Function: Flexion of forearm

Artery: radial reccurent a.

Origin: Anterior surface of the humerus

Insertion: Corocoid process and tuberosity of ulna

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21
Q

Abductor digiti minimi

(hypothenar muscle)

A

Nerve: Deep branch of ulnar n.

Function: abduction proximal phalanx of digit 5

Artery: ulnar a.

Origin: pisiform and transverse carpal ligament

Insertion: Medial base of proximal phalanx of digit 5

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22
Q

Extensor digitorum

A

Nerve: Radial n.

Function: Extension of hand and of digits 2-5 (both the middle nad distal phalanges)

Artery: Posterior interosseous a.

Origin Lateral epicondyle of humerus

Insertion: Extensor expansion of digits 2-5 (reach both middle and distal phalanges of each digit

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23
Q

Palmaris Longus

A

Nerve: Median n.

Function: Weak flexion of the hand

Artery: Ulnar a.

Origin: Medial Epicondyle of the humerus

Insertion: Palmar aponeurosis

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24
Q

What are the interossei hand muscles?

A

Dorsal interossei 1, 2, 3, 4

Palmar (volar) interossei 1, 2, 3

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25
Q

Flexor Carpi Radialis

A

Nerve: Median N.

Function: Flexion and abduction of hand

Artery: Ulnar a.

Origin: Medial Epicondyle of the humerus

Insertion: Bases of metacarpal 2 and 3

26
Q

Supraspinatus

A

Nerves: Suprascapular n.

Function: Abduction of arm

Artery: Suprascapular a.

Origin: Supraspinous process of scapula

Insetrion: Superior facet of greater tubercle

27
Q

Superifical Posterior Forearm

A

Anconeus

Brachiora dialis

Extensor carpi radialis longus

Extensor carpii radialis brevis

Extensor digitorium

Extensor digiti minimi

Extensor carpi ulnaris

28
Q

Triceps Brachii

(Only Posterior Arm Muscle)

A

Nerve: Radial n. mainly but also axillary n. for long head

Fucntion: Extension of forearm

Artery: deep brachial a.

Origin: infraglenoid tubercle of the scapula (long head) and proximal (lateral head) and distal ( medial head) to radial sulcus of humerus

Insertion: Olecron process of ulna

29
Q

Latissimus Dorsi

A

Nerves: Middle subscapular n (thoracodorsal n.)

Function: Medial rotation, adduction, and extension of the arm

Artery: Thoracodorsal a. (branch of subscapular a.)

Origin: spinous process of vertebra T7-L5, thoracolumbar fascia, iliac crest, inferior ribs and often inferion angle of scapula

Insetrion: Floor of intertubercular groove of humerus

30
Q

Subscapularis

A

Nerves: Lower and upper subscapular n.

Function: Medial rotation of the arm

Artery: Subscapular a.

Origin: Subscapular fossa

Insetrion: Lesser tubercle of humerus

31
Q

Teres Minor

A

Nerves: Axillary n.

Function: lateral rotation of arm

Artery: Circumflex scapular a. and posterior humeral circumflex a.

Origin: Lateral border of scapula

Insetrion: Inferior facet of greater tubercle of humerus

32
Q

Extensor indicis

A

Nerve: Radial n. and Posterior Interosseous a.

Function: Extension of digit 2 (both middle nad distal phalanges)

Artery: Posterior Interosseous a.

Origin: Posterior ulna and interosseous membrane

Insertion: Extensor expansion of digit 2 (reach both middle and distal phalanges of this digit)

33
Q

Extensor Carpi Radialis Longus

A

Nerve: Radia N.

Function: Extension and abduction of hand

Artery: Radial a.

Origin Lateral supracondylar ridge of humerus

Insertion: Metacarpal 2

34
Q

Coracobrachialis

A

Nerve: Musculocutaneous n.

Function: Flexion and adduction of the arm

Artery: Brachial a.

Origin: Coracoid process of the scapula

Insertion: Medial Side of the humerus

35
Q

Flexor Carpi Ulnaris

A

Nerve: Ulnar n. (only antererior superficial forearm muscle with this nerve)

Function: Flexion and adduction of hand

Artery: Ulnar a.

Origin: Medial Epicondyle of humerus and olecron of ulna

Insertion: Pisiform, hook of hamate, base of metacarpal 5

36
Q

Deltoid

A

Nerves: Axillary n.

Function: Abduction of arm

Artery: Thoracoacromial a. and anterior and posterior humeral circumflex a.

Origin:Acromion and spine of scapula lateral 3rd of clavicle

Insetrion: Deltoid tuberosity of humerus

37
Q

What are the deep anterior forearm muscles?

A

Pronator quadratus

Flexor pollicis longus

Flexor digitorium profundus

38
Q

Flexor Pollicus Longus

A

Nerve: Median N. (anterior interosseous n.)

Function: Flexion of the distal phalanx of thumb

Artery: Anterior interosseous a.

Origin: radius and interosseous membrane

Insertion: Distal phalanx of thumb

39
Q

What are the adductors of the hand?

A

adductor pollicis

Adductor pollicis accesorius

40
Q

Pronator Teres

A

Nerve: Median N.

Funciton: Flexion and Pronation of forearm

Artery: Ulnar and Radial a.

Origin: Medial Epicondyle of the humerus (humeral head) and coronoid process of the ulna (Ulnar Head)

Insertion: Lateral Midshaft of radius

41
Q

What are the muscles of the anterior arm?

A

Biceps Brachii

Coracobrachialis

Brachialis

42
Q

Infraspinatus

A

Nerves: Suprascapular n.

Function: lateral rotation of arm

Artery: Suprascapular a. and circumflex scapular a.

Origin: Inferior fossa of the scapula

Insetrion: Middle facet of the greater tubercle of the humerus

43
Q

Lumbricals 1,2,3,4

A

Nerves: Medial n. - lumbricals 1 and 2

Ulnar n. - lumbricals 3 and 4

Funciton: Flexion of proximal and extension of middle and distal phalanges of digits 2-5

Artery: Superficial and deep palmar arches, and common palmar digital arteries

Origin: Tendons of flexor digitorium profundus

Insertion: Radial side of extensor expansions of digits 2-5 (reach both the middle and distal phalanges of each digit)

44
Q

Extensor pollicis brevis

A

Nerve: Radial n. and Posterior Interosseous n.

Function: Extension of proximal phalanx of thumb

Artery: Posterior Interosseous a.

Origin: Posterior radius and interosseous membrane

Insertion: Proximal phalanx of thumb

45
Q

Abductor pollicis brevis

(thenar muscle)

A

Nerve: recurrent branch of median n.

Function: Abduction of proximal phalanx of thumb

Artery: Superficial palmar arch

Origin: Trapezium, scaphoid, and transverse carpal ligament

Insertion: Lateral base of proximal phalanx of thumb

46
Q

Flexor digiti minimi brevis

(hypothenar muscle)

A

Nerve: Deep branch of ulnar n.

Function: Flexion of proximal phalanx of digit 5

Artery: ulnar a.

Origin: pisiform and transver carpal ligament

Insertion: Volar base of proximal phalanx of digit 5

47
Q

Extensor carpi ulnaris

A

Nerve: Radial n.

Function: Extension and adduction of hand

Artery: Ulna a.

Origin: Lateral epicondyle of humerus and ulna

Insertion: Metacarpal 5

48
Q

Serratus anterior

A

Nerves: Long Thoracic n.

Function : Lateral rotation and protraction of the scapula

Artery: Lateral thoracic artery nd thoracodorsal a.

Origin: Ribs 1-8/9

Insetrion: Medial margin of scapula

49
Q

Pectoralis minor

A

Nerves: Medial pectoral n.

Function: Depression and protraction of scapuala

Artery: Pectoral branch of thoracoacromial trunk

Origin: Rib 3-5

Insetrion: Coracoid process of scapula

50
Q

Abductor pollicis longus

A

Nerve: Radial n. and posterior interosseous n.

Function: abduction and extension of metacarpal 1 and thus of thumb, reposition of thumb

Artery: Posterior Interosseous a.

Origin: Posterior ulna, radius, and interosseous membrane

Insertion: metacarpal 1

51
Q

Extensor pollicis longus

A

Nerve: Radial n. and Posterior Interosseous a.

Function: Extension of distal phalanx of thumb, reposition of thumb

Artery: Posterior Interosseous a.

Origin: Posterior radius and interosseous membrane

Insertion: Distal phalanx of thumb

52
Q

Opponens pollicis

(thenar muscle)

A

Nerve: Reccurent branch of median n.

Function: Opposition of the thumb, at its carpometacarpal joint

Artery: Superficial palmar arch

Origin: Trapezium and transverse carpal ligament

Insertion: Lateral shut of metacarpal 1

53
Q

Rhomboid minor

A

Nerves: Dorsal Sccapular n.

Function: Medial rotation of scapula, adduction and retraction of scapula

Artery: Dorsal scapular a./ deep branch of transverse cervical a.

Origin: Nuchal ligament and spinous process of C7-T1

Insetrion: Medial border of scapula, above the spine

54
Q

Extensor carpi radialis brevis

A

Nerve: Radial n. and deep radial n.

Function: Extension and abduction of hand

Artery: Radial a.

Origin Lateral epicondyle of humerus

Insertion: Metacarpal 3

55
Q

Rhomboid major

A

Nerves: Dorsal Sccapular n.

Function: Medial rotation of scapula, adduction and retraction of scapula

Artery: Dorsal scapular a.

Origin: Spinous process of T2-T5

Insetrion: medial border of scapula, below spine

56
Q

Opponens digiti minimi

(hypothenar muscle)

A

Nerve: Deep branch of ulnar n.

Function: Opposition of digit 5 at its carpometacarpal joint

Artery: ulnar a.

Origin: pisiform and transverse carpal ligament

Insertion: Medial shaft of metacarpal 5

57
Q

Biceps Brachii

A

Nerve: Musculocutaneous n.

Function: Flexion and supination of the forearm

Artery: Brachial a.

Origin: Supraglenoid tubercle of scapula- long head

Coracoid process of scapula - short head

Insertion: radial tuberosity (tendon) and deep fascia of medial forearm (bicipital aponeurosis)

58
Q

Flexor digitorium profundus

A

Nerve: Median n. (anterior interosseous n.) - digits 2+3

Ulnar n. - digits 4+5

Function: Flexion of the hand and of digits 2-5 (distal phalanges, so at distal interphalangeal joints)

Artery: Anterior interosseous a.

Origin: Ulna and Interosseous membrane

Insertion: Distal phalanges of digits 2-5

59
Q

What are the thenar muscles?

A

Abductor pollicis brevis

Flexor pollicis brevis

Opponens pollicis

60
Q

What are the posterior muscles of the shoulder girdle?

A

Levator scapulae

Rhomboid major

Rhomboid minor

Subscapularis

Teres Major

Latissimus Dorsi

Supraspinatus

Infraspinatus

Deltoid

Teres Minor

61
Q

Adductor pollicis

(transverse and oblique heads)

A

Nerve: deep branch of ulnar n.

Function: adduction of proximal phalanx of thumb

Artery: deep palmar arch

Origin: Metacarpal 3 (transverse head)

metacarpal 2 and 3 and adjacent carpal bone

(oblique head)

Insertion: medial proximal phalanx of thumb

62
Q

What are the superficial anterior forearm muscles?

A

Pronator Teres

Flexor Carpi Radialis

Palmaris Longus

Flexor Digitorum superficialis

Flexor Carpi Ulnaris

S&F 1 (25 decks)

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