Anatomy Shoulder, Arm, & Elbow

Front 1

Bones of the shoulder

Back 1

lateral clavicle
scapula
prox. humerus

Front 2

acts as a strut holding the upper limb from the trunk to allow for max freedom of motion

Back 2

clavicle

Front 3

acticuluates with the lateral clavicle

Back 3

scapula

Front 4

Characterized by a lateral spine and a promiment projection (point of the shoulder) called the acromion

Back 4

scapula

Front 5

medial to the acromion, inferior and between the two processes is the shallow glenoid fossa for articulation with the are

Back 5

coracoid process

Front 6

defined as the part of the upper limb between the shoulder and elbow

Back 6

arm

Front 7

is the only bone of the arm and is characterized proximally by a rounded head

Back 7

humerus

Front 8

close to the head of the humerus are two prominences

Back 8

greater & lesser tubercles

Front 9

Greater & lesser tubercles are separated by the

Back 9

intertubercular groove (sulcus)

Front 10

Distal end of the humerus has two adjoining prominences the

Back 10

capitulum laterally
trochlea medially

Front 11

attached to the humerus are two ___________which extend from the brachial fascia, divide the arm into ant/post

Back 11

intermuscular septa

Front 12

connection of the humerus to the scapula is a ball and socket type of synovial joint

Back 12

shoulder (glenohumeral jt.)

Front 13

head of the humerus articulates with the shallow gleniod fossa of the scapula, slightly deepened by fibrocartilaginous rim ___.

Back 13

glenoid labrum

Front 14

Name the rotator cuff muscles

Back 14

supraspinatus, infraspinatus, tres minor, subscapularis

Front 15

The rotator cuff muscles work to hold the _____ in the glenoid fossa

Back 15

humeral head

Front 16

Name the ligaments that prodive stability to the shoulder joint

Back 16

acromioclavicular, coracoacromial, coracoclavicular (two parts: conoid & trapezoid) ligaments

Front 17

resists separation of the scapula from the clavicle

Back 17

acromioclavicular

Front 18

prevents upward displacement of the humeral head

Back 18

coracromial ligament

Front 19

resists the upward movement of the clavicle from the coracoid process

Back 19

coracoclavicular (two parts: conoid & trapezoid)

Front 20

muscles of the shoulder jt. are classified as the shoulder

Back 20

connectors of the upper limb to the vertebral column, throacic wall or intrinsic muscles of

Front 21

Muscles of the shoulder jt that connect upper limb to the vertebral column

Back 21

Trapezius, latissimus dorsi, levator scapulae, rhomoboid major/minor

Front 22

origin from the superior nuchal line, inion ligamentum nuchae (unites spinous process) spinous process of thoracic

Back 22

trapezius

Front 23

Insertion of the trapezius

Back 23

lateral third of the clavicle acromion, scapular spine

Front 24

Action of the trapezius

Back 24

elevates, retracts, rotates scapula

Front 25

Trapezius nerve innervation

Back 25

accessory nerver (cranial nerve XI)

Front 26

originates from the throacodorsal fascia and iliac crests

Back 26

latissimus dorsi

Front 27

Insertion of the latissimus dorsi

Back 27

floor of the intertubercular sulcus of the humerus

Front 28

action of the latissimus dorsi

Back 28

extends, adducts, medial rotation of the arm

Front 29

Latissimus dorsi and teres major form

Back 29

the posterior axillary fold

Front 30

Nerve innervation of the latisimuss dorsi

Back 30

thoracodorsal nerve (C6-8)

Front 31

Originating from cervical transverse process

Back 31

Levator scapulae

Front 32

Insertion of levator scapulae

Back 32

superior medial border of the scapula

Front 33

Action of levator scapulae

Back 33

elevates scapula

Front 34

Nerve innervation of levator scapulae

Back 34

C3 & C4 and dorsal scapular nerve (C5)

Front 35

orgin, primarily from ligamentum nuchae

Back 35

rhomboid minor

Front 36

rhomboid minor insertion

Back 36

medial border of the scapula at the spine

Front 37

origin spinous process of the upper thoracic vertebrae

Back 37

rhomboid major

Front 38

rhomboid major insertion

Back 38

medial border inferior to the spine of the scapula

Front 39

Action of rhomboid major & minor

Back 39

retract the scapula

Front 40

Nerve innervation of the Rhomboids

Back 40

Dorsal scapular nerve

Front 41

Intrinsic muscles of the shoulder

Back 41

Deltoid, Teres major, Infraspinatus, Teres minor, Subscapularis

Front 42

Origin lateral third of the clavicle, acromion scapular spine

Back 42

deltoid

Front 43

insertion of the Deltoid

Back 43

Humerus

Front 44

Action of the deltoid

Back 44

abduction of the arm, anterior fibers flex & medially rotate arm, posterior fibers extend and laterally rotate the arm

Front 45

Nerve innervation of the Deltiod

Back 45

Ancillary nerve (C5,6)

Front 46

orgin inferior angle of the scapula

Back 46

teres major

Front 47

Insertion of teres major

Back 47

medial lip of the intertubercular groove of the humerus

Front 48

Action of teres major

Back 48

adducts, medially rotates the arm (combines with lat to form post axillary fold)

Front 49

Nerve innervation of teres major

Back 49

lower subscapular nerve (C5,6)

Front 50

Orgin from supraspinatus fossa of the scapula

Back 50

Supraspinatus

Front 51

Insertion of the supraspinatus

Back 51

greater tubercle of the humerus

Front 52

Action of the Supraspinatus

Back 52

Abduction and helps the deltoid in this action

Front 53

Nerve innervation of Supraspinatus

Back 53

Suprascapular nerve (C5,6)

Front 54

Origin infraspinatus fossa of the scapula

Back 54

Infraspinatus

Front 55

Insertion of infraspinatus

Back 55

greater tubercle of the humerus

Front 56

Action of the infraspinatus

Back 56

laterally rotates arm

Front 57

Nerve innervation of infraspinatus

Back 57

Suprascapular nerve (C5,6)

Front 58

Origin from the lateral border of the scapula

Back 58

teres minor

Front 59

Insertion of teres minor

Back 59

greater tubercle of the humerus

Front 60

Action of the teres minor

Back 60

latterally rotates arm

Front 61

Nerve innervation of teres minor

Back 61

axillary nerve (C5,6)

Front 62

Origin from the subscapular fossa of the scapula

Back 62

subscapularis

Front 63

Insertion of subscapularis

Back 63

lesser tubercle of the humerus

Front 64

Action of subscapularis

Back 64

medially rotates the arm

Front 65

Nerve of subscapularis

Back 65

upper & lower subscapular nveres (both C5,6)

Front 66

Nerves that supply sensory innervation to the shoulder

Back 66

supraclavicular nerves from the cervical plexus (supply skin over acromium and upper part of delt)

Front 67

Motor nerves of the shoulder

Back 67

Brachial plexus supplies; dorsal scapular, long thoracic, suprascapular, upper subscapular, thoracodorsal, lower subscapular, & axillary

Accessory provides to trap and branches C3, C4 supply levator scapulae

Front 68

Arteries supplying the shoulder

Back 68

Transverse cervical, suprascapular areteries (branches of subclavian)
Dorsal Scapular, Thoracromial, lateral thoracic, subscapular, thoracodorsal, circumflex scapular, posterior circumflex humeral, anterior circumflex humeral

Front 69

deep branch of the transverse cervical artery runs with the dorsal scapular nerve to the rhomboid

Back 69

Dorsal scapular artery

Front 70

gives rise to acromial and deltoid branches

Back 70

thoracoacromial artery

Front 71

accompanies the long thoracic nerve

Back 71

lateral thoracic artery

Front 72

Subscapular artery branches into

Back 72

thoracodorsal and circumflex scapular arteries (runs with the thoracodorsal nerve, circ curves around the lateral border scapula to enter infraspinatous fossa

Front 73

passes the axillary nerve through the quadrangular space

Back 73

posterior circumflex humeral artery (anastamose w/ ant. circ humeral art)

Front 74

defined by teres minor/major, long head of triceps brachii and humerus

Back 74

quadrangular space

Front 75

Anterior compartment of the arm contains 3 muscles innervated by

Back 75

musculocutaneous nerve (C5-7)

Front 76

Other structues passing through the anterior compartment of the arm

Back 76

median, ulnar nerves, brachial artery/vein, basilic vein, radial nerve in the lower part

Front 77

Muscles of the anterior compartment

Back 77

Biceps brachii (long/short head)
Brachialis
Coracobrachialis

Front 78

Long head of the Biceps brachii arises from

Back 78

supraglenoid tubercle of scapula

Front 79

Short head arises from the

Back 79

coracoid process of the scapula

Front 80

The tendon of the short head orginates from the radial tuberosity and the fascia of the forearm via

Back 80

bicipital aponeurosis

Front 81

Arises from the coracoid process and inserts on the humerus, flexes, adducts the arm at the shoulder jt.

Back 81

Coracobrachialis

Front 82

passes from the distal half of the humerus to the coronoid process of the ulna, prinicple flexor of the forearm

Back 82

Brachialis

Front 83

Posterior compartment of the arm has two muscles

Back 83

Triceps (long, lateral, medial heads)
Anconeus

Front 84

The nerve that innervates muscles of the posterior arm

Back 84

radial nerve (C5-8, T1)

Front 85

Artery and other nerves passing through posterior

Back 85

Profunda brachii artery and ulna nerve (distal elbow jt)

Front 86

arises from the infraglenoid tubercle of the scapula

Back 86

long head of triceps

Front 87

arise from humerus

Back 87

lateral & medial heads of triceps

Front 88

Triceps tendon inserts into the

Back 88

olecranon process of the elbow

Front 89

Action of the tricep

Back 89

extensor of the forearm, aids in extension & adduction of the arm

Front 90

arises from humerus, inserts on the ulna, assits triceps in extension of forearm

Back 90

Aconeus

Front 91

Five nerves supply cutaneous innervation to the arm

Back 91

radial nerve, inferior lateral brachial, posterior brachial, medial brachial cutaneous, and intercostobrachial nerve

Front 92

Radial nerve branches into

Back 92

inferior lateral brachial, posterior brachial,

Front 93

inferior lateral brachial, posterior brachial, supply the

Back 93

inferior lateral and posterior skin of the arm

Front 94

aries from the spinal cord of the brachial plexus

Back 94

medial brachial cutaneous

Front 95

supplies skin over the medial surface of the arm

Back 95

intercostobrachial nerve

Front 96

Four motor nerves in the arm

Back 96

median, musculocutaneous, ulnar and radial

Front 97

lateral to the brachial artery until midarm, then crosses to the medial side, has no branches in the arm

Back 97

median nerve

Front 98

nerve pierces the coracobrachialis muscle supplies the flexors of the anterior compartment continues to the forearm as lateral antebrachial cutaneous nerve

Back 98

musculocutaneous

Front 99

Descends medially to the brachial artery then passes with the superior ulnar collateral artery posterior to the medial epicondyle of the humerus (no branches)

Back 99

Ulnar nerve

Front 100

enters the arm posterior to the brachial artery and then passes with the profunda brachii artery around humerus in the radial groove

Back 100

Radial nerve

Front 101

Continuation of the axillary artery and begins at the inferior border of teres major.

Back 101

Brachial artery

Front 102

Brachial artery branches into

Back 102

profunda brachii artery, superior and inferior ulnar collateral arteries (circulation of the elbow)

Front 103

Brachial artery divides

Back 103

radial and ulna arteries in the cubital fossa

Front 104

A hinge type jt of synovial jt that allows only flexion adn extension

Back 104

elbow jt.

Front 105

Elbow jt consists of

Back 105

humeroulnar jt (trochlea to the trochlear notch of the ulna) humeroradial (capitulum to head of radius) & prox radioulnar (permits rotation of radius over the ulna)

Front 106

Ligaments of the elbow jt

Back 106

radial, ulnar collateral, and anular ligaments

Front 107

thickenings of the fibrous capsule

Back 107

radial, ulnar collateral,

Front 108

encircles head of the radius and holds into position

Back 108

anular ligament

Front 109

Triangular area on the anterior aspect of the elbow, bound superior by imaginary line connecting epicondyles of the humerus, medially by pronator teres, lateral by brachioradialis

Back 109

cubital fossa

Front 110

the roof of the Cubital fossa is formed by

Back 110

brachial fascia

Front 111

the floor of the Cubital fossa is formed by

Back 111

brachialis and supinator muscles.

Front 112

Cubital fossa contains what structures

Back 112

median nerve, brachial artery, biceps tendon, radial nerve, median cubital vein (crosses roof obliquely)