elbow - structure, function, anatomy

Question 1

ulna articulates with

Answer 1

trochlea

Question 2

motion at radioulnar joint?

Answer 2

pron/sup

Question 3

motion at humeralradial joint

Answer 3

pron sup flex ext

Question 4

motion at humeralulnar joint

Answer 4

flex ext

Question 5

what is carrying angle

Answer 5

angle of the ulna in relation to the humeral shaft

Question 6

borders of cubital triangle

Answer 6

pronator teres, brachioradialis

Question 7

what lies in the cubital fossa (triangle)

Answer 7

brachial artery, median nerve, musculotaneous

Question 8

purpose of the radial head

Answer 8

gliding, rotation, enhances stability

Question 9

Anterior band of the anterior UCL resists what motion?

Answer 9

valgus forces till 90 degrees of flexion

Question 10

Posteior band of the anterior UCl resists what motion?

Answer 10

valgus force beyond 60 degrees

Question 11

posterior bundle taut during

Answer 11

flexion above 90 degrees

Question 12

annular ligament resists

Answer 12

internal rotation

Question 13

interosseus membrane stabilizes against

Answer 13

axial force applied to the wrist

Question 14

brachiale is a prime flexor in

Answer 14

pronation

Question 15

median nerve innervates

Answer 15

wrist flexors and pronators

runs through cubital fossa

Question 16

ulnar nerve innervates what structures

Answer 16

sensory and motor innovators of the hand

runs through arcade of struthers, medial side of elbow, past hook of hanmate, tunnel of guyon.

Question 17

radial nerve innervates

Answer 17

motor control - wrist extensors and supinators

posterior aspect of humerus, crosses over to lateral aspect of elbow

Question 18

Dermatomes

Answer 18

look em up

Question 19

look at special tests!

Answer 19

now

Question 20

flex/ext - plane and axis

Answer 20

sagital plane, coronal axis

Question 21

pron/sup plane and axis

Answer 21

transverse plane, longitudinal axis

Question 22

MOI elbow dislocation

Answer 22

Foosh, landing on immovable oject, axial force through arm with slight flexion

Question 23

Elbow terrible triad

Answer 23

posterior dislocation, fracture of radial head, fracture of coronoid

Question 24

MOI elbow fractures

Answer 24

fall on flexed elbow, hyperextension

Question 25

radial head fracture MOI

Answer 25

foosh

Question 26

elbow sprain MOI

Answer 26

strain placed on ligaments with a flexed elbow

Question 27

UCL MOI

Answer 27

stress secondary to valgus over loading, force delivered to lateral elbow

Question 28

Biceps tendon rupture

Answer 28

males over 40, smokers, eccentric loading of the biceps when elbow is flexed to 90

Question 29

OCD’s of the capitellum

Answer 29

compression, valgus extension overload, throwing

Question 30

numbness on dorsal hand

Answer 30

compression of ulnar nerve at elebow

Question 31

numbness on palmar hand

Answer 31

compression of ulnar nerve at wrist

Question 32

Radial nerve MOI

Answer 32

deep lacerations

Question 33

test radial nerve with

Answer 33

tinel’s sign

Question 34

carpal tunnel syndrom

Answer 34

median nerve

Question 35

pronator teres syndrom

Answer 35

median nereve

Question 36

volkmann’s contracture

Answer 36

compartment syndrome

Question 37

valgus extension overlaod

Answer 37

attenuation of the anterior band of the UCL