Upper limb 2

Question 1

3 muscles of anterior/flexor compartment of arm

Answer 1

brachialis
biceps brachii
coracobrachialis

Question 2

Biceps brachii heads

Answer 2

2 (long+short) arise from scapula

both heads unite at distal 1/3 of upper arm and form tendon to insert into radial tuberosity

Question 3

What joints does biceps brachii act on?

Answer 3

shoulder
elbow
radio-ulnar

Question 4

Which head of biceps arise from coracoid process along with coracobrachialis?

Answer 4

short

Question 5

Long head of biceps pathway

Answer 5

supraglenoid tubercle and runs in bicipital groove of humerus

Question 6

Tendon of biceps attached distally

Answer 6

radial tuberosity

Question 7

biceps - shoulder and elbow action

Answer 7

flexion

Question 8

Biceps on superior radio-ulnar joint

Answer 8

supinator and flexor

Question 9

Nerve supply to biceps

Answer 9

musculocutaneous - C5/6

Question 10

Action of coracobrachialis on shoulder

Answer 10

flexion and adduction

Question 11

Nerve supply to coracobrachialis

Answer 11

musculocutaneous

Question 12

Brachialis origin and insertion

Answer 12

shaft of humerus –> cornonoid process of ulna

Question 13

Coracobrachialis origin and insertion

Answer 13

tip of coracoid process –> medial margin of humerus

Question 14

Brachialis on elbow joint

Answer 14

flexion

Question 15

Nerve supply to brachialis

Answer 15

musculocutaneous

Question 16

How does musculocutaneous nerve enter arm?

Answer 16

perforate coracobrachialis and descend between biceps and brachialis

Question 17

musculocutaneous nerve roots

Answer 17

C5-7

Question 18

Why is nerve called musculocutaneous?

Answer 18

innervates anterior muscles of arm

sensation from lateral aspect of arm

Question 19

Does musculocutaneous nerve supply any muscles in forearm or hand?

Answer 19

no

Question 20

Knife in axilla - musculocutaneous

Answer 20

paralysis of BBC muscles

loss of sensation on lateral aspect of arm

Question 21

Deep artery of arm

Answer 21

profundal brachii

Question 22

Median nerve pathway

Answer 22

lateral side of axillary artery and upper part of brachial artery
middle part of arm crosses to medial side and enters cubital fossa

Question 23

Does median nerve supply any muscles in arm?

Answer 23

No

Question 24

How does ulnar nerve enter posterior compartment?

Answer 24

medial intermuscular septum

run along medial head of triceps and medial epicondyle

Question 25

Does ulnar nerve innervate any muscles in arm?

Answer 25

no

Question 26

3 common sites of humerus and 3 nerve injuries

Answer 26

axillary - surgical neck ulnar - medial epicondyle radial - radial groove

Question 27

What is the cubital fossa?

Answer 27

triangular depression in front of elbow

Question 28

Pulsation medial to tendon of biceps brachii

Answer 28

brachial artery

Question 29

base of cubital fossa

Answer 29

imaginary line between 2 epicondyles of humerus

Question 30

medial border of cubital fossa

Answer 30

pronator teres

Question 31

lateral border of cubital fossa

Answer 31

brachioradialis

Question 32

Muscle of posterior compartment of arm

Answer 32

triceps

Question 33

triceps origin and insertion

Answer 33

long head from scapula 2 shorter heads (medial and lateral) from humerus common tendon into olecranon process of ulna

Question 34

olecranon process and coronoid process - which bone?

Answer 34

ulna

Question 35

main action of triceps on elbow

Answer 35

extension

Question 36

Anconeus function

Answer 36

extension and stabilise

Question 37

triceps and anconeus innervation

Answer 37

radial nerve

Question 38

Radial nerve

Answer 38

extensor compartment of arm and forearm

Question 39

Radial nerve path

Answer 39

enters arm anterior to long head of triceps runs with profundal femoris curves around radial groove

Question 40

Radial nerve roots

Answer 40

C5-T1

Question 41

Radial nerve injury sign

Answer 41

wrist drop

Question 42

Elbow joint type

Answer 42

synovial hinge

Question 43

articulating parts of elbow

Answer 43

capitulum, trochlea, radius, ulna

Question 44

Elbow ligaments

Answer 44

ulnar collateral and radial collateral

Question 45

What ligament holds the head of radius?

Answer 45

annular

Question 46

flexors of elbow joint

Answer 46

BBC muscles

Question 47

Extensors of elbow joint

Answer 47

triceps, anconeus

Question 48

olecranon bursitis

Answer 48

students elbow

Question 49

Radio-ulnar joint types

Answer 49

synovial pivot

Question 50

Supination muscles

Answer 50

supinator | biceps brachii **

Question 51

Pronation muscles

Answer 51

pronator teres | pronator quadratus **