Elbow

Question 1

Elbow joint capsule

Answer 1

loose and weak ant and post

Question 2

carrying angle

Answer 2

results in valgus angulation

allows for a person to carry object at side away from thigh

Question 3

ulnar collateral lig

Answer 3

stabilizes against valgus

Question 4

radial collateral lig

Answer 4

varus force

Question 5

annular lig

Answer 5

keeps head of radius on ulna

Question 6

Radial head and capitulum articulation

Answer 6

In full EX no contact

Question 7

Elbow joint Artrho

Answer 7

concave on convex

OKC

Question 8

Closed packed
humeroulnar
humeroradial

Answer 8

HU - full EX and SUP

HR - 90 elbow FL and 5 SUP

Question 9

open packed
humeroulnar
humeroradial

Answer 9

HU - FL 70 and SUP 10

HR- Full EX and SUP

Question 10

Capsular pattern elbow joint

Answer 10

FL>EX

Question 11

Prox radioulnar joint what occurs

Answer 11

rotation

Question 12

pronation occurs when

Answer 12

when radius crosses over the ulna

Question 13

dist radioulnar joint what occurs

Answer 13

concave on convex

Question 14

Prox RU joint arthro

Answer 14

just describing spin lat or medial

Question 15

Distal RU joint arthro

Answer 15

Concave on convex

Question 16

CKC sup and pro for humerus

Answer 16

sup requires IR of hum

pro requires ER of hum

Question 17

Closed packed prox RU

Answer 17

5 of sup

Question 18

open packed prox RU

Answer 18

70 FL 35 SUP

Question 19

capsular pattern RU

Answer 19

Sup=pro

Question 20

closed packed dist RU

Answer 20

5 sup

Question 21

open packed distal RU

Answer 21

10 sup

Question 22

capsular pattern Dist RU

Answer 22

sup=pro

Question 23

FL torque greatest

Answer 23

Elbow in Sup is better than pro

Question 24

brachialis in elbow

Answer 24

workhorse

involved in all types of elbow FL

Question 25

toque gen of elbow EX | Ant Delt and extensor

Answer 25

ant delt helps synergize with elbow ex | it helps keep the shoulder flexed and allows the tricep not to extend the shoulder while extending the elbow

Question 26

Pro and sup works with what to get full 360

Answer 26

pro with IR sup with ER to achieve almost 360 degrees of motion

Question 27

Supinator vs Biceps

Answer 27

sup activation at any angle | bicep high power especially when elbow flexed

Question 28

Screwdriver co contrations

Answer 28

Triceps must co-contract to prevent biceps from actually flexing the elbow and shoulder during supination effort

Question 29

Law of parsimony

Answer 29

henamon size principle fewest muscles or muscle fibers possible for the control of a given joint action energy efficiency

Question 30

Pro teres vs pro quad

Answer 30

pro quad = low power activities | pro teres = high power

Question 31

pro teres and tricep

Answer 31

tricep activates to counteract the tendency for teres to flex at elbow

Question 32

in a C6 tetraplegic can use what to get out of bed

Answer 32

they have total paralysis of elbow EX can use pec major and ant delt to EX elbow and lock it out so they can use that arm to balance on only can happen with CKC hand