MAT 628 Domain IV Questions, Answers and Rationale
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Course
MAT 628 Domain IV
Institution
MAT 628 Domain IV
MAT 628 Domain IV Questions,
Answers and Rationale
1. What does “extension lag” mean?
a. Ability to only flex the knee
b. Inability to fully backward bend(lumbar movement)
c. One leg drags behind the other during gait
d. Inability to fully extend the knee
e. Inability to fully extend th...
MAT 628 Domain IV Questions,
Answers and Rationale
1. What does “extension lag” mean?
a. Ability to only flex the knee
b. Inability to fully backward bend(lumbar movement)
c. One leg drags behind the other during gait
d. Inability to fully extend the knee
e. Inability to fully extend the hip
An extension lag happens when the patient cannot fully extend his or her
knee
2. What is the best method of determining the recovery status of the hand and forearm
after a reflex injury?
a. Use of KT-1000 arthrometer
b. Assessing the strength of a handshake
c. Manual muscle testing of the wrist
d. Use of a hand dynamometer
e. Electromyography testing
A hand dynamometer is a simple tool used to objectively assess the
functional strength of the hand and forearm
Principles of Athletic Training Pg. 800-805
3. Which of the following is a correct sequence of tissue healing?
a. Cellular response, regeneration, remodeling
b. Remodeling, regeneration, Cellular response
c. Rejection, regeneration, resolution
d. Regeneration, resolution, remodeling
e. None of the above
Tissue healing begins with a cellular response, which is associated with
vascular changes, followed by phase II, or regeneration, of both soft tissue
and bone. The third phase is known as remodeling in which there is an
increased organization of extracellular matrix and decreased synthetic
activity.
Principles of Athletic Training Pg.274-276
4. What amount of time it takes for complete remodeling of tissues to occur after a soft
tissue injury?
a. 1 to 3 months
b. 6 to 9 months
c. 4 to 6 weeks
d. 12 to 24 months
e. Up to one year
It may take up to 1 year before soft tissue remodeling is complete.
Principles of Athletic Training Pg 276, 450
5. Where is the primary location for adenosine triphosphate production in skeletal muscle?
,a. Sarcomere
b. Sarcoplasm
c. Sarcolemma
, d. Sarcoplasmic reticulum
e. Mitochondria
The primary location of adenosine triphosphate in the skeletal muscle is
the sacromere
6. Sensory receptors located at the musculotendinous junction, which monitor active
tension generated by the muscle during a contraction, are called?
a. Pacinian corpuscles
b. Ruffini receptors
c. Golgi tendon organs
d. Muscle spindles
e. Contractile sensory receptors
Golgi tendon organs are sensory receptors found in the muscle tendons
that monitor the tension generated in a muscle during contraction
Principles of Athletic Training Pg. 98-99
7. Which of the following describes neurapraxia?
a. Demyelination of the axon sheath that leads to the conduction block. Usually
heals in approximately 1 to 2 weeks
b. Loss or disruption of the ax and myelin sheath. The epineurium is still intact
c. An injury to the endoneurium, perineurium, and epineurium with a permanent
neurological deficit
d. A crush injury to a nerve causing damage to the epineurium. The perineurium is
intact
e. None of the above
A neurapraxia is the demyelination of the axon sheath of a nerve fiber. This
condition will cause a failure of the nerve to conduct impulses, causing a
conduction block. It is usually reversible.
8. Bone grows via a process of apposition and resorption on its surface. Which of the
following cells are responsible for the resorption of the bone during its growth or repair?
a. Osteoblast
b. Osteocytes
c. Osteophils
d. Osteoclasts
e. None of the above
Osteoclasts are cells that reabsorb bone during growth.
Principles of Athletic Training Pg. 282
9. Why is the repair response so limited in articular cartilage of a joint after an injury in the
adult athlete?
a. Articular Cartilage cells do not undergo mitosis in the mature athlete
b. Particular cartilage has poor venous supply
c. Articular Cartilage has a low water content
d. There are fewer mitochondria present in the articular Cartilage then in the hyaline
cartilage
, e. All the above
Cell division for new cartilage growth does not occur in the adult.
Principles of Athletic Training Pg 274
10. What are the four sensations an athlete will experience with the application of
cryotherapy?
a. Cold, burning, cramping, numbness
b. Pain, aching, stinging, cold
c. Aching, burning, pain, numbness
d. Cold, burning, aching, numbness
e. Cold, burning, stinging, aching
The patient will experience the feelings of cold, followed by burning, then
aching, and finally numbness.
Principles of Athletic Training Pg. 401-407
11. Effects of treating a sub acute musculoskeletal injury with a warm whirlpool include all
the following except:
a. Analgesia
b. Stimulation of local circulation
c. Decreased muscle spasm
d. Increased deep tissue temperature
e. Decreased joint stiffness
A warm whirlpool is a superficial heater. It will only heat the superficial
tissues.
Principles of Athletic Training Pg. 409-411
12. Which cells are active after an injury to begin building collagen?
a. Osteocytes
b. Osteoblasts
c. Granulocytes
d. Osteoclasts
e. Fibroblast
Fibroblasts become active during the regeneration phase of the
inflammatory response to begin building collagen.
Principles of Athletic Training Pg. 273
13. Heat is dissipated in the body by all the following except:
a. Shivering
b. Convection
c. The lungs
d. Sweat evaporation
e. Vasodilation
Shivering is a method by which the body generates heat.
Principles of Athletic Training Pg. 165-167
14. External muscular force available for useful work is the result of all the following factors
except:
a. The velocity of muscular shortening
b. Whether the muscle is fast or slow twitch
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