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Anatomy > Upper Extremity (Actions, Innervation and Arterial Supply) > Flashcards

Upper Extremity (Actions, Innervation and Arterial Supply) Flashcards

1
Q

Abductor Pollicis Brevis

A

A: Abducts the thumb at the carpometacarpal and metacarpophalangeal joints
A2: Assists in opposition and extension of thumb
I: Recurrent branch of median nerve (C8 and T1)
Ar: Superficial Palmar branch of radial artery

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2
Q

Flexor Pollicis Brevis

A

A: Flexes thumb at the matcarpophalangeal joint
A2: Assists in opposition and adduction of the thumb
I1: Superficial head - Recurrent branch of the median nerve (C8, T1)
I2: Deep head - Deep branch of the ulnar nerve (C8, T1)
Ar: Superficial Palmar Branch of the radial artery

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3
Q

Abductor Pollicis Longus

A

A1: Abducts the thumb at the carpometacarpal joint
A2: Assists in extension and radial deviation of hand
I: Posterior interosseous nerve (C7, C8)
Ar: Posterior interosseous artery

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4
Q

Adductor Pollicis

A

A: Adducts the thumb at the carpometacarpal joint
A2: Assists in flexion and opposition of thumb
I: Deep branch of the ulnar nerve (C8, T1)
Ar: Deep palmar arch

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5
Q

Anconeus

A

A1: Extends forearm at the elbow
A2: Abducts the ulna during pronation
A3: Provides support for the elbow joint capsule
I: Radial nerve (C7, C8)
Ar: Deep brachial artery

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6
Q

Biceps Brachii

A

A1: Flexion of elbow joint
A2: Supination of the forearm
I: Musculocutaneous nerve (C5, C6)
Ar: Branches of the brachial artery

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7
Q

Brachialis

A

A: Primary flexor of the elbow joint
I: Musculocutanous nerve (C5, C6)
Ar: Branches of the brachial artery, radial recurrent artery, and branches from the ulnar collateral arteries

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8
Q

Brachioradialis

A

A: Flexion of the forearm
I: Radial nerve (C5, C6)
Ar: Radial recurrent artery

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9
Q

Coracobrachialis

A

A: Flexion and adduction of the arm at the shoulder joint
I: Musculocutaneous nerve (C5, C6)
Ar: Branches of the brachial artery

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10
Q

Deltoid

A

A1: Anterior fibers - Flexion, medial rotation of the humerus
A2: Middle fibers - Abduction of the humerus
A3: Posterior fibers - Extension, lateral rotation of the humerus
I: Axillary Nerve (C5, C6)
Ar: Thoracoacromial artery
Ar 2: Circumflex humeral arteries
Ar 3: Profunda Brachii artery

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11
Q

Extensor Carpi Radialis Brevis

A

A: Extends the wrist and abducts the hand at the wrist
I: Deep branch of the radial nerve (C7, C8)
Ar: Radial artery

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12
Q

Extensor Carpi Radialis Longus

A

A: Extends the wrist joint and abducts the hand at the wrist joint
I: Radial nerve (C6, C7)
Ar: Radial recurrent artery and radial artery

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13
Q

Extensor Carpi Ulnaris

A

A: Extends the wrist joint and adducts the hand at the wrist joint
I: Posterior interosseous nerve (C7, C8)
Ar: Ulnar artery

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14
Q

Extensor Digitorum

A

A: Extends the middle four digits at the metacarpophalangeal and interphalangeal joints
I: Posterior interosseous nerve (C7, C8)
Ar: Radial recurrent artery

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14
Q

Extensor Digiti Minimi

A

A: Extends the little finger at the metacarpophalangeal and interphalangeal joints
I: Posterior interosseous nerve (C7, C8)
Ar: Radial recurrent artery and posterior interosseous artery

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15
Q

Extensor Indicis

A

A: Extends the index finger at the metacarpophalangeal and interphalangeal joints.
A2: Assists in wrist extension
I: Posterior interosseous nerve (C7, C8)
Ar: Posterior interosseous artery and perforating branches of the anterior interosseous artery

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16
Q

Flexor Carpi Radialis

A

A: Flexion of the wrist joint and abduction of the hand at the wrist joint
I: Median nerve (C6, C7)
Ar: Anterior or posterior ulnar recurrent artery and the branches of the radial artery

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17
Q

Flexor Carpi Ulnaris

A

A: Flexion of the wrist joint and adduction of the hand at the wrist joint
I: Ulnar nerve (C8, T1)
Ar: Posterior ulnar recurrent artery and ulnar artery

18
Q

Flexor Digiti Minimi Brevis

A

A: Flexes the little finger at the metacarpophalangeal joint
I: Deep branch of the ulnar nerve (C8, T1)
Ar: Deep palmar arch

19
Q

Flexor Digitorum Profundus

A

A: Flexion of the distal and proximal interphalangeal joints of the middle digits (2-5)
A2: Flexion of the metacarpophalangeal joints
I1: Lateral half - Anterior interosseous nerve (C8, T1)
I2: Medial half - Deep branch of the ulnar nerve (C8, T1)
Ar: Anterior interosseous artery

20
Q

Flexor Digitorum Superficialis

A

A: Flexion of the middle phalanges at the proximal interphalangeal joints of fingers 2-5
A2: Assists in flexion of the metacarpophalangeal and wrist joints
I: Median nerve (C7, C8, T1)
Ar: Anterior Interosseous artery

21
Q

Flexor Pollicis Longus

A

A: Flexion of the interphalangeal joint of the thumb
A2: Assists in flexion of the metacarpophalangeal joint of the thumb
I: Anterior interosseous nerve (C8, T1)
Ar: Anterior interosseous artery

22
Q

Infraspinatus

A

A: Lateral rotation of the humerus at the shoulder joint and stabilizes the glenohumeral/Shoulder joint
I: Suprascapular nerve (C5, C6)
Ar: Suprascapular and circumflex scapular arteries

23
Q

Levator Scapulae

A

A: Elevates and Downwardly rotates the scapula
I: Dorsal scapular nerve (C5) and branches from cervical spinal nerves C3 and C4
Ar: Transverse cervical artery and Ascending cervical artery

23
Q

Latissimus Dorsi

A

A: Extension, adduction, and medial rotation of the humerus
I: Thoracodorsal nerve (C6, C7, C8)
Ar: Thoracodorsal artery

24
Q

Lumbricals

A

A: Flex the metacarpophalangeal joints
A2: Extend the proximal and distal interphalangeal joints
I1: Lateral two lumbricals - Median nerve
I2: Medial two lumbricals - Deep branch of the ulnar nerve
Ar: Superficial and Deep palmar arches

25
Q

Opponens Digiti Minimi

A

A: Opposition of the 5th digit
I: Deep branch of the ulnar nerve (C8, T1)
Ar: Deep palmar arch

26
Q

Opponens Pollicis

A

A: Opposition of the thumb
I: Recurrent branch of the median nerve (C8, T1)
Ar: Superficial palmar arch

27
Q

Palmaris Longus

A

A: Weak flexion of the wrist
I: Median nerve (C7, C8)
Ar: Ulnar artery

28
Q

Pectoralis Major

A

A: Adduction, medial rotation, and flexion of the humerus
I: Lateral and medial pectoral nerves (C5-T1)
Ar: Pectoral branch of the thoracoacromial artery, and perforating branches of the internal thoracic artery

29
Q

Pectoralis Minor

A

A: Depression and protraction of the scapula
I: Medial Pectoral nerve (C8, T1)
Ar: Pectoral branch of the thoracoacromial artery

30
Q

Pronator Quadratus

A

A: Pronation of the forearm
I: Anterior interosseous nerve
Ar: Anterior interosseous artery

31
Q

Pronator Teres

A

A: Pronation of the forearm, weak flexion of elbow
I: Median nerve (C6, C7)
Ar: Ulnar Artery and anterior recurrent ulnar artery

32
Q

Rhomboid Major and minor

A

A: Retraction of the scapula and rotation of the scapula to downwardly rotate the glenoid cavity
I: Dorsal Scapular nerve (C4, C5)
Ar: Dorsal Scapular artery

33
Q

Serratus Anterior

A

A: Protraction of the scapula, upward rotation of the scapula, and stabilization of the scapula against the rib cage
I: Long thoracic nerve (C5, C6, C7)
Ar: Thoracodorsal artery, lateral thoracic artery, and superior thoracic artery

34
Q

Subclavius

A

A: Depresses and stabilizes the clavicle
I: Nerve to the subclavius (C5, C6)
Ar: Clavicular branch of the thoracoacromial artery

35
Q

Subscapularis

A

A: Medial rotation of the humerus, stabilization of the glenohumeral joint
I: Upper and lower subscapular nerves (C5, C6)
Ar: Subscapular artery

36
Q

Supinator

A

A: Supination of the forearm
I: Deep branch of the radial nerve (C5, C6)
Ar: Recurrent interosseous artery

37
Q

Supraspinatus

A

A: Initiates abduction of the arm at the shoulder joint
I: Suprascapular nerve (C5, C6)
Ar: Suprascapular artery

38
Q

Teres Major

A

A: Extension, Adduction, and medial rotation of the humerus
I: Lower subscapular nerve (C6, C7)
Ar: Circumflex scapular artery

39
Q

Teres Minor

A

A: Lateral rotation of the humerus, stabilizes the glenohumeral joint
I: Axillary nerve (C5, C6)
Ar: Circumflex scapular artery

40
Q

Trapezius

A

A: Elevation, depression, retraction, and rotation of the scapula
I: Accessory nerve (CN 11) and C3-4
Ar: Transverse cervical artery and occipital artery

41
Q

Triceps Brachii

A

A:
I:
Ar:

Anatomy (12 decks)

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