Anatomy: The Upper Limb

Question 1

What makes up the shoulder girdle

Answer 1

clavicle
scapula
sternoclavicular joint
acromioclavicular joint
glenohumeral joint

Question 2

What is the function of the labrum

Answer 2

increases capture of the humeral head and increases stability

Question 3

name the rotator cuff muscles

Answer 3

supraspinatous
infraspinatous
teres minor
subscapularis

Question 4

Where is the origin of the supraspinatous

Answer 4

supraspinous fossa

Question 5

Where is the insertion of the supraspinatous

Answer 5

the greater tuberosity of the humerous

Question 6

What innervates the supraspinatous

Answer 6

the suprascapular nerve (C5/C6)

Question 7

What is the function of the supraspinatous

Answer 7

abducts the arm

Question 8

Name the following of the infraspinatous:

• origin
• insertion
• innervation
• function

Answer 8

• infraspinous fossa
• greater tuberosity of the humerous
• suprascapular nerve
• externally rotates the arm

Question 9

Name the following about the teres major:

• origin
• insertion
• innervation
• function

Answer 9

dorsal surface of lateral border of scapula

• greater tuberosityof the humerous
• axillary (C5 and 6)
• externally rotates arm

Question 10

Subscapularis:

• origin
• insertion
• innercaion
• function

Answer 10

• anterior surface of scapula
• lesser tuberosity of humerous
• upper and lower subscapular nerve (C5/6)
• internally rotates arm

Question 11

Deltoid:

Answer 11

Origin-clavicle, acromion, spine of scapula
Insertion- deltoid tuberosity of humerous
Innervation- axillary
- Adbucts the arm

Question 12

Where is the origin of the short head of the biceps brachii

Answer 12

coracoid process

Question 13

Where is the origin of the long head of the biceps brachii

Answer 13

labrum/glenoid

Question 14

Where does the biceps insert

Answer 14

tuberosity of the radius

Question 15

What innervates the biceps

Answer 15

musculocutaneous nerve

Question 16

What is the function of the biceps

Answer 16

flexes elbow

supinates forearm

Question 17

where is the site of insertion for all of the extensor muscles of the forearm

Answer 17

lateral epicondy

Question 18

Which compartment is the extensor compartment of the forearm in

Answer 18

the dorsal compartment

Question 19

Where is the site of insertion for all of the flexor muscles of the forearm

Answer 19

the medial epicondyle of the humerous

Question 20

which compartment is the flexor muscles of the forearm

Answer 20

the volar compartment

Question 21

Name the carpal bones

Answer 21

From thumb- Scaphoid, Lunate, Triquetral, Pisiform

From thumb- trapezium , trapezius, capitate, hamate

Question 22

What muscles move the thumb

Answer 22

the thenar muscles

Question 23

Name the three muscles of the thumb

Answer 23

1. Opponens pollicis
2. Flexor pollicis brevis
3. Abductor Pollucis brevis

Question 24

What nerve supplies the muscles of the thumb

Answer 24

median

Question 25

What is the name of the muscles of the little finger

Answer 25

hypothenar muscles

Question 26

Name the two hypothenar muscles

Answer 26

the abductor digiti minimi

Flexor digiti minimi brevis

Question 27

What innervates the hypothenar muscles

Answer 27

the ulnar nerve

Question 28

What else does the ulnar nerve innervate in the hand

Answer 28

the interossei muscles

Question 29

What is the function of the dorsal interossei

Answer 29

ABducts the fingers

Question 30

What is the function of the palmar interossei

Answer 30

Adducts the fingers

Question 31

What innervates the lateral lumbrical muscles

Answer 31

median

Question 32

what innevates the medial lumbrical muscles

Answer 32

ulnar