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NU 606 EXAM 3 (REGIS) NEWEST 2025 PACKAGE
DEAL| NU606 ADVANCED PATHOPHYSIOLOGY
EXAMS WITH COMPLETE ACTUAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS/ ALREADY GRADE
A+ (MOST RECENT!!)
Paralysis .....ANSWER.....loss of motor function
Paresis .....ANSWER.....weakness
Plegia .....ANSWER.....stroke or paralysis
mono- .....ANSWER.....one limb
hemi- .....ANSWER.....both limbs on one side
di- or para- .....ANSWER.....both upper limbs or both lower limbs
quadri- or tetra- .....ANSWER.....all four limbs
3 possible problems with the motor unit .....ANSWER.....1. skeletal
muscle atrophy/dystrophy
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2. neuromuscular junction disorders
3. peripheral nerve injury
the motor unit .....ANSWER.....alpha motor neuron and the muscle
fibers it innervates
most of the diseases of the motor unit cause...
.....ANSWER.....weakness and wasting of skeletal muscle
components of the motor unit which cause disease when affected
.....ANSWER.....1. cell body of the motor neuron
2. the axon of the motor neuron
3. the neuromuscular junction (NMJ)
4. muscle fibers
muscle atrophy .....ANSWER.....lack of muscle activity; reduces
muscle size, tone, and power
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reduction in the diameter of the muscle fibers because of a loss
of protein filaments
Skeletal Muscle Problems: Disuse Atrophy .....ANSWER.....- think
of how a leg in a cast gets small and weak
- normally innervated muscle is not used for a long period of
time
- muscle cells shrink in diameter, lose contractile proteins, and
become weak (do not die)
Skeletal Muscle Problems: Muscular Dystrophy .....ANSWER.....-
DMD and BMD x-linked recessive
- caused by mutations in the dystrophin gene
pathophysiology of muscular dystrophy .....ANSWER.....the
mutation in the dystrophin gene means that the dystrophin
protein is not properly attached to the cell membrane, and the
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muscle cells do not effectively contract. There is progressive
degeneration and eventual necrosis of the muscle tissue. Finally,
the muscle is replaced by connective tissue
dystrophin .....ANSWER.....Links thin filaments to proteins of
sarcolemma
Duchenne muscular dystrophy (DMD) .....ANSWER.....*no
dystrophin*
most common form of muscular dystrophy; affects primarily boys
with onset between the ages of 3 and 5 years; the disorder
progresses rapidly so that most of these boys are unable to walk
by age 12 and later need a respirator to breathe
Becker muscular dystrophy (BMD) .....ANSWER.....*some
dystrophin*
very similar to, but less severe than, Duchenne muscular
dystrophy
NU 606 EXAM 3 (REGIS) NEWEST 2025 PACKAGE
DEAL| NU606 ADVANCED PATHOPHYSIOLOGY
EXAMS WITH COMPLETE ACTUAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS/ ALREADY GRADE
A+ (MOST RECENT!!)
Paralysis .....ANSWER.....loss of motor function
Paresis .....ANSWER.....weakness
Plegia .....ANSWER.....stroke or paralysis
mono- .....ANSWER.....one limb
hemi- .....ANSWER.....both limbs on one side
di- or para- .....ANSWER.....both upper limbs or both lower limbs
quadri- or tetra- .....ANSWER.....all four limbs
3 possible problems with the motor unit .....ANSWER.....1. skeletal
muscle atrophy/dystrophy
,Page 2 of 74
2. neuromuscular junction disorders
3. peripheral nerve injury
the motor unit .....ANSWER.....alpha motor neuron and the muscle
fibers it innervates
most of the diseases of the motor unit cause...
.....ANSWER.....weakness and wasting of skeletal muscle
components of the motor unit which cause disease when affected
.....ANSWER.....1. cell body of the motor neuron
2. the axon of the motor neuron
3. the neuromuscular junction (NMJ)
4. muscle fibers
muscle atrophy .....ANSWER.....lack of muscle activity; reduces
muscle size, tone, and power
,Page 3 of 74
reduction in the diameter of the muscle fibers because of a loss
of protein filaments
Skeletal Muscle Problems: Disuse Atrophy .....ANSWER.....- think
of how a leg in a cast gets small and weak
- normally innervated muscle is not used for a long period of
time
- muscle cells shrink in diameter, lose contractile proteins, and
become weak (do not die)
Skeletal Muscle Problems: Muscular Dystrophy .....ANSWER.....-
DMD and BMD x-linked recessive
- caused by mutations in the dystrophin gene
pathophysiology of muscular dystrophy .....ANSWER.....the
mutation in the dystrophin gene means that the dystrophin
protein is not properly attached to the cell membrane, and the
, Page 4 of 74
muscle cells do not effectively contract. There is progressive
degeneration and eventual necrosis of the muscle tissue. Finally,
the muscle is replaced by connective tissue
dystrophin .....ANSWER.....Links thin filaments to proteins of
sarcolemma
Duchenne muscular dystrophy (DMD) .....ANSWER.....*no
dystrophin*
most common form of muscular dystrophy; affects primarily boys
with onset between the ages of 3 and 5 years; the disorder
progresses rapidly so that most of these boys are unable to walk
by age 12 and later need a respirator to breathe
Becker muscular dystrophy (BMD) .....ANSWER.....*some
dystrophin*
very similar to, but less severe than, Duchenne muscular
dystrophy
