Upper Px Practice Exam

Question 1

To determine the control system efficiency of an UEP:

Answer 1

Divide the force measured at the hanger by the force at the terminal device.

Question 2

An axial pull test on an UEP should be:

Answer 2

A force of about 50lbs and should not displace the socket more than 1 inch

Question 3

When the arm is over head, the trapezius muscle:

Answer 3

Positions the glenoid cavity downwards

Question 4

Primary mover in glenohumeral extension

Answer 4

Deltoid, infraspinatus, latissimus Doris, tree major, triceps brachii

Question 5

Glenohumeral horizontal flexion is of:

Answer 5

Deltoid, pectoralis major

Question 6

Rhomboids originate on

Answer 6

Thoracic vertebrae and insert along the scapula from the root of the spine to the inferior angle

Question 7

External rotation of the humerus is accomplished with:

Answer 7

Infraspinatus and teres minor

Question 8

Internal rotation of humerus is by:

Answer 8

Subscapularis, teres major, pec major

Question 9

Triceps actions:

Answer 9

Extends elbow, extends the glenohumeral joint

Question 10

In the medium length BE there can be some residual pronation because:

Answer 10

Pronation teres is still largely intact

Question 11

The amount of humeral flexion to fully flex the elbow of an AE prosthesis should not exceed

Answer 11

45 degrees

Question 12

SD operates primarily by what motion

Answer 12

Scapula abduction

Question 13

If AE amputee is having difficulties in flexing elbow of px what can help?

Answer 13

Add a cross back strap to the harness
Move the forearm lift loop distally,
Replace steel hook with aluminum one

Question 14

The lever type excursion ampulifier provides increased excursion at expense of:

Answer 14

Force

Question 15

Initial socket brim for a short AE amputation would be trimmed on a line

Answer 15

One-two incessant above the acromion

Question 16

A non-prehensile activity may be illustrated by holding a

Answer 16

Suitcase

Question 17

When fitting a socket for a VSBE (very short?) the mechanical elbow should flex to:

Answer 17

135 degrees

Question 18

External movable sheave type excursion ampulifier is used with what type of prosthesis

Answer 18

SD

Question 19

When making a plaster wrap for a VSBE split socket or muenster, the elbow is flexed

Answer 19

90 degrees

Question 20

What is chief advantage of using the housing cross bar assembly

Answer 20

Reduces control cable bending, increase cable life

Question 21

The major limitation that is incurred by the SD amputee is

Answer 21

Excursion to operate px

Question 22

When using the single pivot hinge, the center of the joint is placed 1/2” above the medial superior brim of the socket, T/F?

Answer 22

False- _______

Question 23

WE-500 and WA-600 are what type wrist units

Answer 23

Friction

Question 24

The brachioradialis assists in elbow flexion, T/F?

Answer 24

True

Question 25

Triple control means?

Answer 25

One cable for elbow flexion, one for TD operation and 3rd for elbow locking

Question 26

The E-400 elbow is set in 5-10degrees of initial elbow flexion, T/F?

Answer 26

True

Question 27

The FM wrist disconnnect is not recommended for use on:

Answer 27

SD and bilateral UEP

Question 28

Polycentric hinge is used on which type of amputee

Answer 28

Short BE

Question 29

ACROMION is part of

Answer 29

Scapula

Question 30

The acceptable range of glenohumeral flexion for AE px is:

Answer 30

135 degrees

Question 31

In what position should the muscle tunnel be when assembling the control system of the biceps cineplasty?

Answer 31

At max shortening

Question 32

When the elbow is flexed to 90 the forearm can be rotated through an arc by humeral rotation.the size of this arc is?

Answer 32

110degrees

Question 33

Proximal posterior border of the VSBE socket is shaped to contain the ole crayon process, as a result:

Answer 33

Elbow can not fully extend

Question 34

Th terminal device most desirable for use with cineplasty amputees is

Answer 34

Voluntary closing

Question 35

In SD what muscle groups are suitable for myoelectric elbow control

Answer 35

Pectoralis major, and trapezius

Question 36

Internal rotation of humerus

Answer 36

Subscapularis, pec major, latissimus dorsi

Question 37

Th most prominent and highest point on the shoulder girdle is the

Answer 37

Acromion

Question 38

The elbow is flexed to 90 and a 40 lb weight is held in hand. The distance from the elbow axis to the weight is 15 in. How much force must the elbow flexors exert if their insertion is 2” from the elbow joint

Answer 38

300in/lbs

Question 39

Characteristics of shoulder saddle harness

Answer 39

Increases comfort in axial loading Reduces pressure in axilla Presents cosmetic difficulties for females

Question 40

Frantic & Aitkin’s classification system, complete absence of the upper limb distal to the shoulder joint is termed

Answer 40

Amelia

Question 41

Characteristics of the cross back strap

Answer 41

Increases available cable excursion Decreases force required to operate the TD Tends to keep the cross point from migrating (Does not make donning and doffing more difficult)

Question 42

Which of the following epiphyses contributes most to longitudinal growth of the upper limb

Answer 42

Proximal humerus

Question 43

Elevation of scapula:

Answer 43

Trapezius

Question 44

In short AE px the trim lines are extended proximally

Answer 44

Increase rotational stability

Question 45

The AE prosthesis is designed with 10-15 degrees of elbow flexion in order to

Answer 45

Give more cosmetic appearance

Question 46

What of the following modifications would not increase function for a bileral short AE amputee: Use a wrist flexion unit of the dominant side Lower the elbow center to decrease the forearm length Decrease the size of the proximal wing on the socket Line the cable housing with teflon

Answer 46

Decrease the size of the proximal wing on the socket

Question 47

In the munenster socket the principal function of the posterior proximal brim is to limit elbow extension and

Answer 47

Provide suspension in axial loading