10 - Scapular Region & Arm Laughty

Front 1

3 lateral cutaneous nerves and where they come from?

Back 1

upper lateral cutaneous (axillary)
lower lateral cutaneous (radial)
lateral antebrachial cutaneous (continuation of MC)

Front 2

2 dorsal cutaneous nerves and where they come form?

Back 2

posterior cutan. (radial)
dorsal cutan. (radial)

Front 3

basilic vein?

Back 3

on ulnar side; joins the brachial vein and forms axillary vein

Front 4

cephalic vein?

Back 4

on radial side; comes up to elbow; median cubital connects to basilic; original vein continues to drain into axillary vein

Front 5

what separates the median cubital vein from the brachial artery?

Back 5

bicipital aponeurosis

Front 6

2 lymphs of upper limbs?

Back 6

cubital nodes - above medial epicondyle of humerus

axillary nodes

Front 7

where do biceps insert?

Back 7

radial tuberosity

Front 8

what separates arm muscle into anterior and posterior compartments?

Back 8

lateral and medial intermuscular septa

Front 9

origin of pectoralis major?

Back 9

medial part of clavicle, sternum, costal cartilages of ribs, and rectus sheath

Front 10

insertion of pectoralis major?

Back 10

crest of greater tubercle of humerus

Front 11

action of pectoralis major?

Back 11

adduction & medial rotation

Front 12

innervation of pectoralis major?

Back 12

medial and lateral pectoral nerves

Front 13

origin of deltoid muscle?

Back 13

lateral 1/3 of clavicle, lateral acromion & crest of spine of scapula

(same as insertion of trap)

Front 14

insertion of deltoid?

Back 14

deltoid tuberosity on humerus

Front 15

action of deltoid?

Back 15

ABDuction

Front 16

innervation of deltoid?

Back 16

axillary nerve

Front 17

origin of teres major?

Back 17

subscapular fossa

Front 18

insertion of terres major?

Back 18

crest of lesser tubercle of humerus

Front 19

action of terres major?

Back 19

medial rotation & adduction

Front 20

innervation of terres major?

Back 20

lower branch of subscapular nerve

Front 21

insertion of latissimus dorsi?

Back 21

intertubercular sulcus

Front 22

4 muscles of rotator cuff?

Back 22

supraspinatus, infraspinatus, teres minor, subscapularis

Front 23

insertion/origin of supraspinatus?

Back 23

I: supraspinous fossa of scapula
O: greater tubercle of humerus

Front 24

action of supraspinatus?

Back 24

ABductions (helps deltoid)

Front 25

innervation of supraspinatus?

Back 25

suprascapular nerve

Front 26

insertion/origin of infraspinatus?

Back 26

I: infraspinatus fossa
O: greater tubercle of humerus

Front 27

action of infraspinatus?

Back 27

lateral rotation

Front 28

innervation of infraspinatus?

Back 28

suprascapular nerve

Front 29

origin of teres minor?

Back 29

lateral border of scapula

Front 30

insertion of teres minor?

Back 30

greater tubercle

Front 31

action/innervation of teres minor?

Back 31

lateral rotation; axillary nerve

Front 32

origin of subscapularis

Back 32

costal surface of scapula

Front 33

insertion of subscapularis?

Back 33

lesser tubercle

Front 34

action of subscapularis

Back 34

medial rotation of arm

Front 35

innervation of subscapularis

Back 35

upper and lower subscapular nerves

Front 36

What structure is seen through the triangular space?

Back 36

scapular circumflex vessels

Front 37

What structure is seen through the quadrangular space?

Back 37

axillary nerve

Front 38

What structure is seen through the triangular interval?

Back 38

radial nerve/deep brachial vessels

Front 39

3 muscles in anterior arm & their innervation?

Back 39

coracobrachialis, biceps brachii, brachialis
I: musculocutaneous nerve

Front 40

origin/insertion/action of coracobrachialis?

Back 40

O: coracoid process
I: halfway down medial part of humerus
A: adducts arm

Front 41

origin/insertion/action of biceps brachii?

Back 41

O: 1) long head: supraglenoid tubercle
2) Short head: coracoid process
I: radial tuberosity
A: flexes shoulder & forearm; supinates forearm

Front 42

origin/insertion/action of brachialis?

Back 42

O: lower anterior half of humerus
I:ulnar tuberosity
A:flexes forearm at elbow

Front 43

what does the biceps brachialis form?

Back 43

floor of cubital fossa

Front 44

what are muscles in the posterior arm innervated by?

Back 44

radial nerve

Front 45

Origin/Insertion of triceps?

Back 45

O: 1) infraglenoid tubercle
2) upper half of humerus
3) lower half of humerus
I: Olecranon process

Front 46

Action of triceps?

Back 46

extend forearm & shoulder

Front 47

2 muscles making border of cubital fossa

Back 47

brachoradialis & pronator teres

Front 48

Insertion/origin of brachoradialis?

Back 48

O: lateral supracondylar line of humerus
I: stylod process of radius

Front 49

Action/innervation of brachoradialis?

Back 49

flexes forearm at elbow
radial nerve

Front 50

Insertion/origin of pronator teres?

Back 50

O: 1) medial epicondyle of humerus
2) coronoid process of ulna
I: middle shaft of radius

Front 51

action/innervation of pronator teres?

Back 51

A: pronates forearm
Inn: median nerve

Front 52

innervation of suprascapular nerve?

Back 52

supraspinatus & infraspinatus

Front 53

innervation of axillary nerve?

Back 53

teres minor & deltoid

Front 54

innervation of radial nerve?

Back 54

posterior side of arm/forearm