Axilla & Brachial Plexus

Question 1

Pyramidal shaped region between arm & chest

Answer 1

Axilla

Question 2

Pectoral major & pectorals minor muscles make up what wall of the axilla region

Answer 2

Anterior wall

Question 3

Latissimus dorsi, teres major & subscapularis muscles make up what wall of the axilla region

Answer 3

Posterior pall

Question 4

Serratus anterior muscles make up what wall of the axilla region

Answer 4

Medial wall

Question 5

Intertubercular sulcus of humerus make up what wall of the axilla region

Answer 5

Lateral wall

Question 6

Skin & Fascia of armpit make up what wall of the axilla region

Answer 6

Base

Question 7

The area under the clavicle to the skin of the part is what region

Answer 7

Axilla

Question 8

the top of the Axilla region can be referred to as the

Answer 8

apex or inlet

Question 9

What runs through the axially region

Answer 9

Axial sheath

Question 10

The axial sheath starts at a superior _______ position and runs through the axial to an inferior _______ position

Answer 10

Medial, Lateral

Question 11

What does the positioning of the axial sheath through the axial allow for

Answer 11

range of motion

Question 12

A fibrous sheath that encloses the axillary artery and the axillary vein and the three cords of the brachial plexus to form the neurovascular bundle

Answer 12

Axillary sheath

Question 13

Muscles if the lateral wall of the axilla include

Answer 13

Coracobrachialis, Long and short heads of the Biceps

Question 14

Where is the Coracobrachialis muscle located in the Axilla

Answer 14

posterior portion of lateral wall

Question 15

Where is the short head of Biceps located in the lateral wall of the axilla

Answer 15

anteromedially

Question 16

Where is the long head of Biceps located in the lateral wall of the axilla

Answer 16

anterolaterally

Question 17

When comparing lymph nodes and vessels what should you look for to detriment that you’re looking at a vessel not a node

Answer 17

Lumen

Question 18

Axillary sheath, which contains axillary artery & brachial plexus are contented in what

Answer 18

Axilla

Question 19

The subclavian vein and the internal jugular vein make up the

Answer 19

Venous angle

Question 20

Lymphatics coalescence in what area

Answer 20

Axilla

Question 21

What lymph node collects from the anterior thoracic wall & most of breast

Answer 21

Pectoral node

Question 22

What lymph node collects from the posterior thoracic wall & scapular region

Answer 22

Subscapular node

Question 23

What lymph node collects from the upper limb except for the portion along the cephalic vein

Answer 23

Humeral node

Question 24

What lymph node do the Pectoral, Subscapular and Humeral nodes drain into

Answer 24

Central nodes

Question 25

What node collects from the Central node as well as the proximal cephalic v nodes

Answer 25

Apical Node

Question 26

What are the two main lymph nodes in the body

Answer 26

right lymphatic duct and thoracic duct

Question 27

What are the right lymphatic duct and thoracic duct located

Answer 27

At the venous angle

Question 28

3-4 large nodes deep to pectoralis minor

Answer 28

central nodes

Question 29

receive lymph from all the other groups of axillary nodes as well as the proximal cephalic vein nodes

Answer 29

apical nodes

Question 30

The nerve components within the axilla

Answer 30

Brachial plexus

Question 31

part of the axillary artery that is between 1st rib & pec. minor m.

Answer 31

First part

Question 32

Part of the axillary artery that is underlying pectoralis minor muscle

Answer 32

Second part

Question 33

Part of the axillary artery that is between pectoralis minor & teres major

Answer 33

Third part

Question 34

The axillary artery gives rise to what artery at the inferior border of the teres major muscle

Answer 34

Brachial A.

Question 35

Arises from the subclavian a. at the lateral border of the 1st rib

Answer 35

Axillary A.

Question 36

What are the three parts of the Axillary A.

Answer 36

1st, 2nd, 3rd

Question 37

Superior thoracic a comes off of what part of the axillary A.

Answer 37

1st

Question 38

Thoracoacromial trunk comes off of what part of the axillary A.

Answer 38

2nd

Question 39

Lateral Thoracic a. comes off of what part of the axillary A.

Answer 39

2nd

Question 40

Subscapular a. comes off of what part of the axillary A.

Answer 40

3rd

Question 41

Posterior Circumflex Humeral aa. comes off of what part of the axillary A.

Answer 41

3rd

Question 42

Anterior Circumflex Humeral aa. comes off of what part of the axillary A.

Answer 42

3rd

Question 43

Composed of ventral rami from C5-T1

Answer 43

Brachial Plexus

Question 44

What nerve is the Trapezius muscle innervated by

Answer 44

CN XI

Question 45

Provides nerves for all upper limb muscles except trapezius muscle

Answer 45

Brachial plexus

Question 46

There are _ cervical nerves and _ cervial vertebrae

Answer 46

8,7

Question 47

C1-C7 nerves emerge (above/ below) C1-C7 vertebrae

Answer 47

Above

Question 48

C8 nerve emerges (above/below) C7 vertebra

Answer 48

Below

Question 49

All other spinal nerves emerge (above/below) vertebrae of same number

Answer 49

Below

Question 50

Spinal nerves exist the vertebrae column via the

Answer 50

intervertebral foramen

Question 51

which spinal nerve does not exist the vertebral column via the intervertebral foramen

Answer 51

C1

Question 52

The 5 ventral rami from C5-T1 converge to for

Answer 52

3 Trucks

Question 53

The 3 trucks of the brachial plexus divide into

Answer 53

6 divisions

Question 54

Where do the 3 trunks of the brachial plexus form

Answer 54

Lower neck

Question 55

Where to the 6 divisions of the brachial plexus split

Answer 55

Behind the clavicle

Question 56

The 6 divisions of brachial plexus converge into

Answer 56

3 cords

Question 57

The 3 cords of the brachial plexus are located in the

Answer 57

Axillary region

Question 58

The 3 cords of the brachial plexus split into

Answer 58

5 branches

Question 59

The 5 branches of the brachial plexus split off in the

Answer 59

Upper arm

Question 60

What does all the converging and splitting of the brachial plexus occurs

Answer 60

Axillary artery

Question 61

C5 and C6 rami converge to form

Answer 61

Upper trunk

Question 62

What does C7 ramus form

Answer 62

middle trunk

Question 63

What joins C7 to form the middle trunk?

Answer 63

Nothing

Question 64

C8 and T1 rami converge to form

Answer 64

Lower trunk

Question 65

The upper, middle, and lower trunks split to form

Answer 65

Anterior and posterior divisions (6)

Question 66

All three posterior divisions converge to for the

Answer 66

Posterior cord

Question 67

The posterior cord is made up of ____ posterior divisions

Answer 67

all three

Question 68

Contains the anterior contributions from the upper and middle trunks

Answer 68

Lateral cord

Question 69

Anterior contributions from C5 C6 C7 form the

Answer 69

Lateral cord

Question 70

The posterior cord has contributions from

Answer 70

C5-T1

Question 71

The anterior portion of the lower trunk forms the

Answer 71

Medial cord

Question 72

The medial cord contains contributions form

Answer 72

C8-T1

Question 73

Terminal branch of the brachial plexus that is comprised of C5, C6, & C7

Answer 73

Musculocutaneous

Question 74

Terminal branch of the brachial plexus that is comprised of C5-T1

Answer 74

Median & radial

Question 75

Terminal branch of the brachial plexus that is comprised of C5-C6

Answer 75

Axillary

Question 76

Terminal branch of the brachial plexus that is comprised of C8 & T1

Answer 76

Ulnar

Question 77

There terminal branches of the brachial plexus forms an M and a Y shape in which the Y portion if positioned

Answer 77

Posteriorly

Question 78

There terminal branches of the brachial plexus forms an M and a Y shape in which the M portion if positioned

Answer 78

Anteriorly

Question 79

Formed from lateral cord

Answer 79

Musculocutaneous N

Question 80

Passes thru coracobrachialis muscle and Enters biceps brachii & brachialis muscles

Answer 80

Musculocutaneous N

Question 81

Major nerve of the anterior arm (flexion)

Answer 81

Musculocutaneous N

Question 82

Innervates coracobrachialis, biceps & ½ of brachialis muscle

Answer 82

Musculocutaneous N

Question 83

Formed from ½ lateral cord & ½ medial cord

Answer 83

Median N.

Question 84

Passes medial to arm muscles

Answer 84

Median N.

Question 85

Major nerve of the anterior forearm

Answer 85

Median N.

Question 86

Innervates most of the anterior forearm, 3 thenar eminence mm. & 1st 2 lumbricals in hand

Answer 86

Median N.

Question 87

Formed from medial cord

Answer 87

Ulnar N.

Question 88

Runs behind medial epicondyle

Answer 88

Ulnar N.

Question 89

Major nerve of the hand

Answer 89

Ulnar N.

Question 90

Innervates most of the mm of the hand, Flexor Carpi ulnaris m & ulnar ½ Flexor Carpi ulnaris in forearm

Answer 90

Ulnar N.

Question 91

The Axillary N. and Radial N are formed from the

Answer 91

Posterior cord

Question 92

Circles behind humerus in quadrangular space to innervate deltoid & teres minor muscles

Answer 92

Axillary N.

Question 93

Passes posterior to humerus in radial groove and found within triangular interval

Answer 93

Radial N.

Question 94

Major nerve of the posterior arm & forearm

Answer 94

Radial N.

Question 95

Innervates all mm in both regions + ½ of brachialis m.

Answer 95

Radial N.

Question 96

Nerve that is responsible for extension of arm and forearm

Answer 96

Radial N.

Question 97

Formed directly from rami, trunks, & cords of the brachial plexus

Answer 97

other nerves

Question 98

Branches off of C5 and innervates rhomboid & levator scapulae muscles

Answer 98

Dorsal Scapular n. (C5)

Question 99

traveling with lateral thoracic anterior A. and innervates serratus anterior muscle

Answer 99

Long Thoracic n. (C5-C7)

Question 100

Innervates supraspinatus & infraspinatus muscles

Answer 100

Suprascapular n. (C5-C6)

Question 101

Serves pectoralis major

Answer 101

Lateral Pectoral n. (C5-C7)

Question 102

Serves pectoralis major & minor muscles

Answer 102

Medial Pectoral n. (C8-T1)

Question 103

Comes off the posterior cord

Answer 103

Lower plexus

Question 104

Innervates subscapularis muscle

Answer 104

Upper Subscapular n. (C5-C6)

Question 105

Innervates latissimus dorsi muscle

Answer 105

Thoracodorsal n. (C6-C8)

Question 106

Innervates subscapularis & teres major muscles

Answer 106

Lower Subscapular n. (C5-C6)

Question 107

sensory to medial arm

Answer 107

Medial brachial cutaneous n. (C8-T1)

Question 108

sensory to medial forearm

Answer 108

Medial antibrachial cutaneous n. (C8-T1)