Elbow

Question 1

MA greatest at 100 degrees of flexion

Answer 1

brachialis

Question 2

unaffected by forearm position

Answer 2

brachialis

Question 3

active during all types of contractions and speeds

Answer 3

brachialis

Question 4

MA greatest b/w 80-100 degrees of flexion

Answer 4

biceps

Question 5

does flexion and compression

Answer 5

brachioradialis

Question 6

moment arm greatest at 100-120 degrees of flexion

Answer 6

brachioradialis

Question 7

moment arm decreases with increased flexion

Answer 7

triceps

Question 8

best position at 90 degrees; max isometric torque

Answer 8

triceps

Question 9

axi is b.w force line and R

Answer 9

1st class lever

Question 10

ex] gastroc

lever?

Answer 10

1st class

Question 11

MAd depends

Answer 11

1st class

Question 12

scissors

Answer 12

1st class

Question 13

R is b/w F and A

Answer 13

2nd class

Question 14

ex] brachioradialis

Answer 14

2nd class

Question 15

MAd greater than 1

Answer 15

2nd class

Question 16

wheelbarrow

nutcracker

Answer 16

2nd class

Question 17

F is between R and A

Answer 17

3rd class

Question 18

ex] quads

Answer 18

3rd class

Question 19

MAd always less than 1

Answer 19

3rd class

Question 20

MAd greater than 1 means what?

Answer 20

EA is bigger than RA

Question 21

tweezers
throwing a ball
swinging a bat

Answer 21

3rd class

Question 22

elbow flexion produces what kind of tilt

Answer 22

varus tilt

Question 23

elbow extension produces what kind of tilt

Answer 23

valgus tilt

Question 24

during elbow flexion, radial head glides ? on humerus

Answer 24

anterior

Question 25

during elbow extension, radial head glides ? on humerus

Answer 25

posterior

Question 26

during pronation, radius moves

Answer 26

laterally

Question 27

during supination, radial head moves

Answer 27

medially

Question 28

during wrist extension, radius moves

Answer 28

cephalid

Question 29

during wrist flexion, radial head moves

Answer 29

caudal

Question 30

which ligs at proximal RU joint?

Answer 30

quadrate and annular ligs

Question 31

which ligs at distal RU joint?

Answer 31

dorsal and palmar radioulnar ligs

Question 32

quadrate lig limits

Answer 32

pronation and supination

Question 33

pronation limited by

Answer 33

bony approximation

Question 34

limited by passive tension of | palmar radioulnar ligament and oblique cord

Answer 34

supination

Question 35

when joint surfaces are not in maximal contact and supporting surfaces are relatively loose

Answer 35

open packed position

Question 36

maximal arthrokinematic motion available in this position

Answer 36

open packed

Question 37

radiohumeral and radioulnar in open packed position

Answer 37

70 flexion, 35 supination

Question 38

ulnahumeral open packed position

Answer 38

70-90 flexion

Question 39

lateral epicondylitis example

Answer 39

tennis elbow

Question 40

medial epicondylitis example

Answer 40

golfers elbow

Question 41

this muscle has large PCSA

Answer 41

brachialis