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Joint Structure and Function 6th Edition
Levangie Test Bank
Test Bank Directly From The publisher, 100% Verified Answers.
COVERS ALL CHAPTERS.
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Chapter 1: Biomechanical Applications to Joint Structure and Function
Multiple Choice
1. When you raise a cup to your mouth, a ____________________ of motion occurs at the elbow
joint.
A. rotation only
B. translation only
C. translation and rotation
D. None of the above answers are correct.
ANS: C
Rationale: Rotatory and translatory motions in the human body most commonly occur together.
2. Hip abduction from an anatomic position would occur in which plane?
A. Sagittal
B. Frontal
C. Transverse GRADESMORE.COM
D. Horizontal
ANS: B
Rationale: The frontal (coronal) plane divides the body into front and back halves. Movements in
this plane occur side to side, such as the case in abduction of the hip.
3. Which of the following describes the phenomenon that when two forces come in contact, the
second force will respond to the contact by the first force with equal magnitude and in the
opposite direction?
A. Law of Inertia
B. Law of Reaction
C. Law of Acceleration
D. None of the above answers are correct.
ANS: B
4. A ____________________ class lever is described by the fulcrum occurring at one end,
followed by the resistance (load or weight) and then the force (effort).
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A. First
B. Second
C. Third
D. Fourth
ANS: B
5. In what type of lever is the Mechanical Advantage always less than one?
A. First
B. Second
C. Third
D. Fourth
ANS: C
Rationale: A mechanical advantage less than one occurs when the effort moment arm is shorter
than the resistance moment arm. This is always the case in a third-class level if all forces are
equal.
6. Which of the following best describes torque?
A. The force a muscle generates GRADESMORE.COM
B. A force times the perpendicular distance from the line of force to the axis of rotation
C. A force times the distance measured along the lever from the line of force to the axis of
rotation
D. The distance a muscle can move
ANS: B
Rationale: Torque equals force times the distance of the force to the axis. The distance must be
represented by the moment arm of the force, not just the direct distance as measured up the lever.
The moment arm is the perpendicular distance of the line of the force from the axis of rotation.
NARRBEGIN: Figure 1-7
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NARREND
7. In Figure 1-7, the biceps is acting on the forearm. What is the force of the biceps, FB, given
the following: moment arm of the biceps, d = 0.02 m and torque due to the biceps, TM = –5 Nm?
A. –0.1 N
B. 1,250 N
C. 5 N GRADESMORE.COM
D. –250 N
ANS: D
Rationale: Because T = (F) (MA) therefore, F= T/MA: (–)5 Nm/0.02 m = (–)250 N. The negative
sign is used to show direction of the force. Due to the small moment arm, the force necessary to
produce (–)5 Nm of torque is quite large.
NAR: Figure 1-7
8. As your patient abducts her shoulder from 90° to 120°, the moment arm of the muscle
decreases. If the torque from the deltoid remains constant, the force of the deltoid would
____________________ as the shoulder is abducted.
A. remain the same
B. increase
C. decrease
D. become 0 N
ANS: B
Rationale: If the torque were to remain the same, the force would have to increase as the
muscle’s moment arm decreases. Force and moment arm have an inverse relationship if torque is
to remain constant.
Copyright © 2019 by F. A. Davis Company
WWW.NURSYLAB.COM
www.nursylab.com
GRADESMORE.COM
Joint Structure and Function 6th Edition
Levangie Test Bank
Test Bank Directly From The publisher, 100% Verified Answers.
COVERS ALL CHAPTERS.
Download Immediately After the Order.
, WWW.GRADESMORE.COM
www.nursylab.com
Chapter 1: Biomechanical Applications to Joint Structure and Function
Multiple Choice
1. When you raise a cup to your mouth, a ____________________ of motion occurs at the elbow
joint.
A. rotation only
B. translation only
C. translation and rotation
D. None of the above answers are correct.
ANS: C
Rationale: Rotatory and translatory motions in the human body most commonly occur together.
2. Hip abduction from an anatomic position would occur in which plane?
A. Sagittal
B. Frontal
C. Transverse GRADESMORE.COM
D. Horizontal
ANS: B
Rationale: The frontal (coronal) plane divides the body into front and back halves. Movements in
this plane occur side to side, such as the case in abduction of the hip.
3. Which of the following describes the phenomenon that when two forces come in contact, the
second force will respond to the contact by the first force with equal magnitude and in the
opposite direction?
A. Law of Inertia
B. Law of Reaction
C. Law of Acceleration
D. None of the above answers are correct.
ANS: B
4. A ____________________ class lever is described by the fulcrum occurring at one end,
followed by the resistance (load or weight) and then the force (effort).
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A. First
B. Second
C. Third
D. Fourth
ANS: B
5. In what type of lever is the Mechanical Advantage always less than one?
A. First
B. Second
C. Third
D. Fourth
ANS: C
Rationale: A mechanical advantage less than one occurs when the effort moment arm is shorter
than the resistance moment arm. This is always the case in a third-class level if all forces are
equal.
6. Which of the following best describes torque?
A. The force a muscle generates GRADESMORE.COM
B. A force times the perpendicular distance from the line of force to the axis of rotation
C. A force times the distance measured along the lever from the line of force to the axis of
rotation
D. The distance a muscle can move
ANS: B
Rationale: Torque equals force times the distance of the force to the axis. The distance must be
represented by the moment arm of the force, not just the direct distance as measured up the lever.
The moment arm is the perpendicular distance of the line of the force from the axis of rotation.
NARRBEGIN: Figure 1-7
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www.nursylab.com
GRADESMORE.COM
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www.nursylab.com
NARREND
7. In Figure 1-7, the biceps is acting on the forearm. What is the force of the biceps, FB, given
the following: moment arm of the biceps, d = 0.02 m and torque due to the biceps, TM = –5 Nm?
A. –0.1 N
B. 1,250 N
C. 5 N GRADESMORE.COM
D. –250 N
ANS: D
Rationale: Because T = (F) (MA) therefore, F= T/MA: (–)5 Nm/0.02 m = (–)250 N. The negative
sign is used to show direction of the force. Due to the small moment arm, the force necessary to
produce (–)5 Nm of torque is quite large.
NAR: Figure 1-7
8. As your patient abducts her shoulder from 90° to 120°, the moment arm of the muscle
decreases. If the torque from the deltoid remains constant, the force of the deltoid would
____________________ as the shoulder is abducted.
A. remain the same
B. increase
C. decrease
D. become 0 N
ANS: B
Rationale: If the torque were to remain the same, the force would have to increase as the
muscle’s moment arm decreases. Force and moment arm have an inverse relationship if torque is
to remain constant.
Copyright © 2019 by F. A. Davis Company
WWW.NURSYLAB.COM
www.nursylab.com
GRADESMORE.COM
