ABC Prosthetic UPDATED Exam Questions and CORRECT Answers
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Course
ABC Prosthetic
Institution
ABC Prosthetic
ABC Prosthetic UPDATED Exam
Questions and CORRECT Answers
The gluteus medium is most active during what phase of stance? - CORRECT ANSWERMidstance
Which of the following is a major cause of the toe externally rotating at heel strike for an
AK? A)knee bolt externally rotated. B)excessive toe ...
ABC Prosthetic UPDATED Exam
Questions and CORRECT Answers
The gluteus medium is most active during what phase of stance? - CORRECT ANSWER-
Midstance
Which of the following is a major cause of the toe externally rotating at heel strike for an
AK? A)knee bolt externally rotated. B)excessive toe out. C)keel too short. D) plantar flexion
resistance is too firm? - CORRECT ANSWER- D) plantarflexion resistance is too firm
All of the following factors contribute to vaulting with an AK except? A) weak hip extensors.
B)prosthesis too long. C) excessive knee friction. D)inadequate suspension? - CORRECT
ANSWER- A) weak hip extensors
The gait cycle consists of? - CORRECT ANSWER- Heel strike on one side to the following
heel strike on the same side.
Venous return of the blood to the heart is assisted by? - CORRECT ANSWER- The action of
skeletal muscles
How many inches does the center of gravity shift from side to side during normal
locomotion? - CORRECT ANSWER- 2 inches
Your center of gravity is located where? - CORRECT ANSWER- Just anterior of the second
sacral vertebrae.
The surgical attachment of muscle to muscle - CORRECT ANSWER- Myoplasty
The surgical attachment of muscle to bone - CORRECT ANSWER- Myodesis
The body's center of gravity reaches its highest point at? - CORRECT ANSWER- midstance
Pressure is determined by (equation) - CORRECT ANSWER- Force divided by area
, During normal human locomotion, between heel contact and foot flat, GRF causes which
moment at the knee and hip? - CORRECT ANSWER- Knee flexion and hip flexion
If the sciatic nerve is severed at the level of the lesser trochanter, muscle function will not be
impaired at which lower extremity joint? - CORRECT ANSWER- The hip joint
In a shoulder disartic, what muscles would be most suitable sites for control of a myoelectric
elbow? - CORRECT ANSWER- Pectoralis major and the trapezius
In a scapulothoracic amputee, what motion can be used to operate the prosthesis? -
CORRECT ANSWER- Chest expansion
The infraspinatus performs what action? - CORRECT ANSWER- external rotation of the
arm, stabilize the shoulder
The terminal device on a shoulder disartic is operated primarily by scapular...? - CORRECT
ANSWER- Scapular abduction
Shoulder district tend to have more difficulty with force or excursion? - CORRECT
ANSWER- Excursion needed to operate the prosthesis.
The most prominent and superior point of the shoulder girdle is the? - CORRECT ANSWER-
Acromion
Benefits of a shoulder saddle harness? - CORRECT ANSWER- Increase comfort in axial
loading, reduce pressure on the axilla (however does not improve excursion with biscapular
abduction)
What UE amputation level are external or outside locking joints designed for? - CORRECT
ANSWER- Elbow disarticulation or distal humerus (when a standard elbow unit would
otherwise excessively elongate the humeral section)
Standard length of a prosthetic elbow unit - CORRECT ANSWER- 2"
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