Ppt 2

Question 1

medial attachement=

Answer 1

origin

= proximal

Question 2

lateral attachement=

Answer 2

insertion

= distal

Question 3

Pectoralis major

Answer 3

connects at rib cage and humerus

Question 4

pectoralis minor

Answer 4

under pectoralis major

• connects to 2-5 rubs and coracoid process

Question 5

Subclavius

Question 6

Serratus anterior

Answer 6

-attaches to all ribs and the lateral border of scapula??

Question 7

Shoulder drop

Answer 7

Trapezius
- descending (superior) part elevates “shoulder shrugging”
- ascending (inferior) part depresses and middle part retracts (pulls posteriorly) scapula

Question 8

Ability to climb is impaired due to injury to

Answer 8

thoracodorsal nerve

Question 9

Ability to bow hunt is impaired due to injury to

Answer 9

dorsal scapular nerve/levetator scapulae

Question 10

SSIT

Answer 10

Subscapularis
Supraspinatus
Infraspinatus
Teres minor

Question 11

0-15 degrees of arm abduction

Answer 11

supraspinatous

Question 12

15-90 degrees of arm abduction

Answer 12

medial deltoid

Question 13

> 90 degree of arm abduction

Answer 13

upper trapezius

Question 14

SITS for rotator cuff

Answer 14

Supraspinatus- helps deltoid abduct arm 15
Infraspinatus- laterally rotates arm
Teres minor- adducts and laterally rotate arm
Subscapularis- medially rotates and adducts arm

Question 15

Rotator cuff injury common in

Answer 15

baseball pitcher
Will have pain in neck and at the tip of the shoulder

Question 16

All muscles will pull towards…

Answer 16

the origin

Question 17

Brachial plexus

Answer 17

nerve supply to upper limb
-extends from cervical region to axilla
-formed by anterior rami of C5 to T1 (roots of brachial plexus)

Question 18

Anterior rami roots

Answer 18

C5-C8, T1

Question 19

anterior rami (roots)—->

Answer 19

trunks
——–>
divisions
——–>
cords
——->
branches

Question 20

Trunks

Answer 20

-Superior trunnk
-Middle trunk
-Inferior trunk

Question 21

Cords

Answer 21

• Lateral cord
• Posterior cord
• Medial cord

Question 22

Terminal branches

Answer 22

• musculocutaneous nerve
• radial nerve
  -median nerve
  -ulnar nerve

Question 23

Brachial plexus injury

Answer 23

second most common postop peripheral neuropathy

Question 24

Axillary nerve

Answer 24

innervates the deltoid and teres minor

Question 25

Musculocutaneous nerve

Answer 25

sends fibers to coracobrachialis, biceps brachii and brachialis
(flexion at elbow)

Question 26

Median

Answer 26

branches to most of the flexor muscles of forearm and opponens pollicis
-pronation of forearm
-flexion of wrist
- opposition of thumb
-flexion of lateral three fingers

Question 27

Ulnar nerve

Answer 27

supplies the flexor carpi ulnarus and half of the flexor digitorum profundus
- flexion of wrist
- adduction of fingers
-flexion of medial two fingers

Question 28

Radial nerve

Answer 28

supplies ALL extensors of arm and forearm muscles
- extension at elbow
- supination of forearm
- extension of wrist and fingers

Question 29

INtercostobrachial nerve

Answer 29

-terminal cutaneous nerve
-can be blocked to reduce pain from tourniquet inflation during IV regional neural anesthesia

Question 30

Erb-Duchenne palsy

Answer 30

injury to superior trunk C5, C6 roots in newborn due to excess stretch during delivery that leads to tear of the roots.
Axillary, musculocutaneous and suprascapular nerves are paralyzed
-limb hangs by the side with adducted shoulder, forearm is pronated, waiter’s tip position

Question 31

Klumpke paralysis

Answer 31

injury of inferior trunik C8, T1