CSA 1 Exam

Question 1

Nonaxial joint

Answer 1

linear movement

eg intercarpal

Question 2

uniaxial joint

Answer 2

hinge or pivot

eg elbow or IPJ

Question 3

biaxial joint

Answer 3

condyloid or saddle

e.g. MPJ

Question 4

Multiaxial joint

Answer 4

ball and socket

e.g. hip or shoulder joint

Question 5

subscapular & subcoracoid bursae

Answer 5

many times merged into a unique wide bursa

subscapular bursitis is common

Question 6

Quadrangular Space contains…

Answer 6

axillary nerve

and

posterior circumflex humeral artery

Question 7

Triangular Space contains…

Answer 7

circumflex scapular artery

Question 8

Triangular Interval contains…

Answer 8

radial nerve

and

profunda brachii artery

Question 9

what four things pierce the clavipectoral fascia?

Answer 9

inward

cephalic vein

lymphatics

outward

lateral pectoral nerve

thoracoacromial artery

Question 10

prefixed brachial plexus

postfixed brachial plexus

Answer 10

C4 to C8

C6 to T2

Question 11

Cutaneous Innervation of Arm

1. Superior lateral cutaneous n. of arm
2. Inferior lateral cutaneous n. of arm
3. Posterior cutaneous nerve of arm
4. Intercostobrachial n.
5. Medial brachial cutaneous

Answer 11

1. a branch of the axillary n. supplies skin over the lower ½ of deltoid
2. branch of the radial n. supplies skin over the lateral side of the arm below deltoid
3. branch of the radial nerve, supplies the posteromedial aspect of arm
4. lateral cutaneous branch of the second intercostal n. upper part of medial side of arm
5. branch of the medial cord, medial side of arm

Question 12

Median + Ulnar Nerve in relation to Pronator Teres

Answer 12

median nerve leaves cubital fossa + passes btw two heads of pronator teres

ulnar nere leaves cubital fossa + passes deep to pronator teress

Question 13

Anatomical snuffbox

Answer 13

thumb is fully extended, the extensor tendons are drawn up

Boarders

• roof of the snuff box
  
  • cutaneous branches of the radial nerve and cephalic vein
• floor
  
  • radial artery

Bone Boarders (proximal to lateral)

• styloid process of radius
• scaphoid
• trapezium
• base of thumb metacarpal

Question 14

Six Extensor Retinaculum Compartments

Answer 14

Radial to ulnar from posterior view

1. Abductor pollicis longus and extensor pollicis brevis
2. extensors carpi radialis longus + extensors carpi radialis brevis
3. extensor pollicis longus
4. Extensor digitorum and extensor indicis
5. Extensor digiti minimi
6. Extensor carpi ulnaris

Question 15

Why is abduction and adduction prevented in the elbow?

Answer 15

movement is prevented by the interlocking of the surfaces of humeroulnar joint

Question 16

equilateral triangle

Answer 16

When the elbow is flexed

the two epicondyles and the tip of the olecranon

form an equilateral triangle

Question 17

Carpal Joints

Answer 17

S Joint

• synovial space between the two rows of the carpal bones

Carpometacarpal(CMC) joints

• Between the distal row of the carpal bones and the bases of the metacarpals

Question 18

metacarpophalangeal joints

+

interphalangeal joints

Answer 18

metacarpophalangeal joints

• Synovial joints, condylar
• allow of flexion/extension + abduction/adduction

interphalangeal joints

• Pure hinge synovial joints

both supported by palmar and collateral ligaments