Biomedical Engineering Reference
In-Depth Information
ANSWER:
B
. Surgical shortening, by movement of tendon insertions, reduces
maximum possible muscle forces.
E
is wrong since the maximum force
depends on the type of muscle and its midbelly cross-sectional area.
PROBLEM 5.6
Rank (1) articular cartilage, (2) cancellous bone, (3) ligament, and (4)
tendon in
increasing
magnitude of
A. Elastic (tensile) modulus
B. Strain to failure
ANSWER:
A. 1, 2, 3, 4
B. 4, 1, 2, 3
PROBLEM 5.7
Living bone (select the incorrect answer[s])
A. Remodels to reduce abnormal stresses placed upon it
B. Requires no energy for maintenance
C. Is viscoelastic
ANSWER:
B
. Living bone requires energy for maintenance as does all living tissue.
A
is a restatement of Wolff's law, and
C
is correct since all tissues are
viscoelastic to some degree.
PROBLEM 5.8
Match possible phrases to complete true definitions:
1. SRPs
A. can be predicted from Ohm's law
2. Voltage
B. depend upon life processes
3. Wolff's law
C. depend upon ion movement
4. Biopotentials
D. may depend upon electrical effects
ANSWER:
1, C; 2, A; 3, D; 4, B.
PROBLEM 5.9
Increasing strain rate in bone (select the correct answer[s])
A. Changes the microscopic nature of fractures
B. Causes fatigue failure
C. Causes creep
Search WWH ::
Custom Search