Exam 1d

Question 1

Rupture of the pectoralis major

Answer 1

A rare injury that occurs when excessive stress causes a tear of the tendon or possible avulsion fx at the greater tuberosity

Question 2

Subclavius

Answer 2

Muscle found below the clavicle

Question 3

Origin of the subclavius

Answer 3

First rib

Question 4

Insertion of the subclavius

Answer 4

Subclavian groove of the clavicle

Question 5

Action of the subclavius

Answer 5

Pulls the clavicle medically and thus stabilizes the sternoclavicular joint (used when hanging by the hands)
- also serves as a protective barrier between a fx clavicle and underlying blood vessels

Question 6

Poland syndrome

Answer 6

• Absence of both pectoralis major and minor
• atrophy of the mammary glands
• absence of several ribs
• hand me smaller and have webbing

Question 7

Axilla

Answer 7

Space between the arm and the chest wall, which is in the shape of a truncated pyramid

Question 8

Apex of the axella

Answer 8

(Upper end) triangular space bounded by the clavicle, scapula and the first rib

Question 9

Base of the axella

Answer 9

the base (lower portion) is made up of skin and fascia

Question 10

Anterior wall of the axilla

Answer 10

Pectoralis major

Question 11

Posterior wall of the axilla

Answer 11

Latissimus Doris and Teres major

Question 12

Brachial plexus

Answer 12

Organizational arrangement of nerves headed to the upper extremity located into the axilla

Question 13

Lateral cord contains which cords

Answer 13

C5
C6
C7

Question 14

Medial cord contains which nerves

Answer 14

C8

T1

Question 15

Posterior cord contains which cords

Answer 15

All the cords 
C5
C6
C7
C8
T1

Question 16

Nerves in the upper trunk

Answer 16

Suprascapular
Subscapular
Dorsal scapula

Question 17

Nerve from the lateral chord

Answer 17

Lateral pectoral nerve

Question 18

Nerve from the posterior chord

Answer 18

Lower, medial, upper, subscapular nerves

Question 19

Nerves in the medial nerve

Answer 19

• Medial antebrachial cutaneous nerve
• Medial brachial cutaneous nerve
• Medial pectoralis cutaneous nerve

Question 20

Prefixed brachial plexus

Answer 20

C4 is the most superior nerve root forming the plexus, C8 would be the most inferior spinal nerve

Question 21

Postfixed brachial plexus

Answer 21

C6 is the most superior spinal nerve root, T2 the most inferior

Question 22

Paralysis

Answer 22

Complete loss of muscular movement

Question 23

Paresis

Answer 23

Movement can be performed but is weak (incomplete paralyses)

Question 24

Anesthesia

Answer 24

Partial or complete loss of sensation w/ or w/out loss of consciousness

Question 25

Paresthesia

Answer 25

Loss of cutaneous sensation

Question 26

Erb-duchenne palsy

Answer 26

Injury to the upper roots of the brachial plexus

Question 27

Klumpkey’s palsy

Answer 27

Injury to lower roots of the brachial plexus

Question 28

Cervicle ribs

Answer 28

Longer than usual transversals process potential cause of problems with some of the nerves forming the brachial plexus

Question 29

Compression of the chords of the brachial plexus

Answer 29

Compresses or impinged cords, resulting in paresthesia, erythema, and possible hand digit weakness

Question 30

Thoracic outlet syndrome

Answer 30

Compression of both the cords of the brachial plexus, and the axillary artery

Question 31

Axillary artery

Answer 31

Continuation of the subclavian artery, name changes when it passes underneath the clavicle and enters the axilla, becomes the brachial artery about an inch below the surgical neck of the humerus

Question 32

6 branches of the axillary artery

Answer 32

- Superior thoracic - Thoracoacromial - Lateral thoracic - Subscapular - Anterior and posterior humeral circumflex * - HoTeL SPA - *