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Muscular System Exam Questions And
Answers (Guaranteed A+)
What are the three muscle types in the body? - Answer✔skeletal, cardiac, smooth
What is the endomysium? - Answer✔a thin layer of connective tissue that surrounds each muscle
fiber
What is the perimysium? - Answer✔connective tissue that surrounds groups of 10-100
individual muscle fibers separating them into bundles called fascicles.
What is the epimysium? - Answer✔Connective tissue layer(outside muscle); an overcoat of
dense irregular connective tissue that surrounds the whole muscle
Where are smooth muscles found in the body? - Answer✔walls of hollow organs (except heart)
in the digestive system, blood vessels, and urinary system
How is cardiac muscle contraction regulated? - Answer✔involuntary contraction
What are the functions of muscle? - Answer✔producing movement, maintaining posture,
stabilizing joints and generating heat
What is the sarcolemma? - Answer✔specialized plasma membrane of muscle cells
What is the function of the sarcoplasmic reticulum? - Answer✔stores calcium
What is myosin? - Answer✔Thick filament protein with a head and elongated tail, the heads
form cross bridges with the thin filaments during muscle contraction
What is actin? - Answer✔Thin filament protein. Twisted into a double helix and appears like a
double-stranded chain of pearls. Contains the myosin-binding site.
What is the neurotransmitter for muscle contraction? - Answer✔acetylcholine (ACh)
What is the energy needed for muscle contraction? - Answer✔stored ATP
What types of muscles are involuntary? - Answer✔smooth and cardiac
Muscular System Exam Questions And
Answers (Guaranteed A+)
What are the three muscle types in the body? - Answer✔skeletal, cardiac, smooth
What is the endomysium? - Answer✔a thin layer of connective tissue that surrounds each muscle
fiber
What is the perimysium? - Answer✔connective tissue that surrounds groups of 10-100
individual muscle fibers separating them into bundles called fascicles.
What is the epimysium? - Answer✔Connective tissue layer(outside muscle); an overcoat of
dense irregular connective tissue that surrounds the whole muscle
Where are smooth muscles found in the body? - Answer✔walls of hollow organs (except heart)
in the digestive system, blood vessels, and urinary system
How is cardiac muscle contraction regulated? - Answer✔involuntary contraction
What are the functions of muscle? - Answer✔producing movement, maintaining posture,
stabilizing joints and generating heat
What is the sarcolemma? - Answer✔specialized plasma membrane of muscle cells
What is the function of the sarcoplasmic reticulum? - Answer✔stores calcium
What is myosin? - Answer✔Thick filament protein with a head and elongated tail, the heads
form cross bridges with the thin filaments during muscle contraction
What is actin? - Answer✔Thin filament protein. Twisted into a double helix and appears like a
double-stranded chain of pearls. Contains the myosin-binding site.
What is the neurotransmitter for muscle contraction? - Answer✔acetylcholine (ACh)
What is the energy needed for muscle contraction? - Answer✔stored ATP
What types of muscles are involuntary? - Answer✔smooth and cardiac
