Upper Extremity: Part 1

Question 1

Passage between the neck and the arm that provides protection for neovascular bundle supplying the upper limb.

Answer 1

Cervicoaxillary Canal

Question 2

What is the most commonly fracture bone in the human body?

Answer 2

Clavicle

Question 3

How is the Clavicle most commonly fractured?

Answer 3

Outstretched Hand

Question 4

What is the weakest part of the Clavicle?

Answer 4

Middle
Lateral Third

Question 5

Where do the Brachialis, Pronator Teres, and Medial head of the Triceps Brachii attach on the humerus?

Answer 5

Medial Supracondylar Ridge

Question 6

Where do the Triceps Brachii, Brachioradialis, and Extensor Radialis Longus attach on the humerus?

Answer 6

Lateral Supracondylar Ridge

Question 7

What nerve is in direct contact with Surgical Neck of the Humerus?

Answer 7

Axillary Nerve

Question 8

What nerve is in direct contact with the Radial Groove of the Humerus?

Answer 8

Radial Nerve

Question 9

What nerve is in direct contact with the distal end of the Humerus?

Answer 9

Median Nerve

Question 10

What nerve is in direct contact with the Medial Epicondyle of the Humerus?

Answer 10

Ulnar Nerve

Question 11

How many bones form the wrist or Carpus?

Answer 11

8

Question 12

Name the 8 Bones of the Wrist
(So Long To the Pinky, Here Comes The Thumb)

Answer 12

Scaphoid
Lunate
Triquetrum
Pisiform
Hamate
Capitate
Trapezoid
Trapezium

Question 13

What fascia covers the Deltopectoral Groove?

Answer 13

Pectoral Fascia

Question 14

What travels through the Deltopectoral Groove?

Answer 14

Cephalic Vein

Question 15

Fascia is thickened at the posterior ends of the Radius and Ulna and forms what?

Answer 15

Extensor Retinaculum

Question 16

Fascia is thickened at the anterior ends of the Radius and Ulna and forms what?

Answer 16

Palmar Carpal Ligament

Question 17

Deep and distal to the Extensor Retinaculum.

Answer 17

Flexor Retinaculum
(Transverse Carpal Ligament)

Question 18

Composed of the Flexor Retinaculum and the Carpal Bones.

Answer 18

Carpal Tunnel

Question 19

What two things pass through the Carpal Tunnel?

Answer 19

Median Nerve
Flexor Tendon

Question 20

What are the two main superficial veins that originate from the Dorsal Venous Network?

Answer 20

Cephalic
Basilic

Question 21

The Axilla act as a what for neurovascular structures?

Answer 21

Passageway

Question 22

How many parts does the Axillary Artery have?

Answer 22

3

Question 23

What is artery is the first branch of the Axillary Artery?

Answer 23

Superior Thoracic Artery

Question 24

What 2 arteries make up the second part of the Axillary Artery?

Answer 24

Thoracoacromial
Lateral Thoracic

Question 25

What arteries make up the third part of the Axillary Artery?

Answer 25

Subscapular Anterior Circumflex Humeral Posterior Circumflex Humeral

Question 26

What is the Brachial Plexus formed by the union of?

Answer 26

Anterior Rami of C5 - C8 + T1

Question 27

What muscles are supplied by C5?

Answer 27

Levator Scapulae Rhomboid Major Rhomboid Minor Diaphragm Supraspinatus Infraspinatus Subclavius

Question 28

What is the characteristic position of an Injury to C5 and C6 of the Brachial Plexus.

Answer 28

Waiter's Tip Position

Question 29

This can occur in newborns due to excessive stretching of the neck during delivery which affects C5 and C6

Answer 29

Erb-Duchene Palsy

Question 30

What artery is the main supply to the arm?

Answer 30

Brachial Artery

Question 31

What nerve supplies anterior compartment of the arm?

Answer 31

Musculocutaneous Nerve

Question 32

Injury to the Musculocutaneous nerve results in paralysis of what muscles?

Answer 32

Coracobrachialis Biceps Brachialis

Question 33

What nerve supplies the posterior compartment of the arm?

Answer 33

Radial Nerve

Question 34

Injury to the Radial nerve results in paralysis of what muscles?

Answer 34

Triceps Brachioradialis Supinator and Extensor Muscles of Wrist and Fingers

Question 35

While the Ulnar never is vulnerable to injury, what is significant about it?

Answer 35

No branches in the arm.

Question 36

What vein is found in the Cubital Fossa and is used for blood draw and angiography?

Answer 36

Median Cubital Vein