elbow and wrist

Question 1

how many bones in upper limb

Answer 1

30

Question 2

type of joint at radioulna

Answer 2

pivot

Question 3

elbow

Answer 3

trochlear of humerus and olecronon process of ulna and coronoid process of ulna

Question 4

proximal radioulna joint

Answer 4

pivot
allows pronation and supination

Question 5

anterior muscles of elbow

Answer 5

biceps brachii
brachial
brachioradialis
pronator teres and quadratus

Question 6

posterior muscles of below

Answer 6

triceps brachii
anconeus
supinator

Question 7

biceps brachia long head I and O

Answer 7

I = radial tuberosity
O = supraglenoid tubercle of scapular

Question 8

biceps brachia short head I and O

Answer 8

I = radial tuberosity
O = coracoid process of scapular

Question 9

brachialis

Answer 9

flexion
I = coronoid process
O = distal half of anterior humerus

Question 10

brachioradialis

Answer 10

flexion
pronation from supinated to neutral
supination from pronated to neutral
I = lateral surface of distal end of radius
O = humerus (supacondylar ridge)

Question 11

pronator teres

Answer 11

pronation
weak flexion
I = lateral surface of radius
O = medial condyloid ridge of humerus and medial side of proximal ulna

Question 12

pronator quadraturs

Answer 12

pronation
I = anterior radius
O = distal anterior ulna

Question 13

triceps brachii

Answer 13

extension
I = olecranon process of ulna
O = infraglenoid tubercle of scapular

Question 14

anconeus

Answer 14

extension
I = posterior of ulna and olecranon
O = posterior lateral condyle of humerus

Question 15

supinator

Answer 15

supination
I = lateral proximal radius
O = neighboring posterior ulna & lateral epicondyles humerus

Question 16

wrist primary movement

Answer 16

between radius and proximal carpals

Question 17

O and I for wrist flexors

Answer 17

O = anteromedially at forearm
I = anteriorly at hand

Question 18

O and I of wrist extensors

Answer 18

O = posterolaterally at forearm
I = posteriorly at hand

Question 19

tennis elbow

Answer 19

overuse of wrist extensors / supinator where they attach to lateral epicondyle of humerus
causes: repetitive wrist extension and supination, eccentric

Question 20

condyloid joint at wrist

Answer 20

between radius and scaphoid and lunate

Question 21

carpometacarpal joint of thumb

Answer 21

saddle joint (limited triaxial movement)

Question 22

carpal tunnel syndrome

Answer 22

overdue injury
numbness
tingling
decreased sensation

Question 23

carpal tunnel syndrome causes

Answer 23

repetitive and forceful gripping
tendon inflammation within carpal tunnel
compresses median nerve to the hand