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Ivy Tech Aphy 201_ Chapter 12 - Muscles
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- Microbiology Ivy Tech BIOL201
Ivy Tech Aphy 201_ Chapter 12 - Muscles
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Ivy Tech Aphy 201: Chapter 12 - MusclesMuscle cells are surrounded by a plasma membrane called the ___________. It is
enveloped by a thin connective tissue layer.
A. Endomysium
B. Sarcolemma
C. Perimysium - ANS-B. Sarcolemma
The thin connective tissue layer that envelopes the sarcolemma is called the
_________________.
A. Epimysium
B. Perimysium
C. Endomysium - ANS-C. Endomysium
Skeletal muscles are attached to bone on each end by tough connective tissue
________.
A. Joints
B. Cells
C. Tendons - ANS-C. Tendons
True or False:
The prime mover of any skeletal movement is called the antagonistic muscle. -
ANS-False. It is the agonist muscle.
Flexors and extensors that act on the same joint to produce opposite actions are called
_______________ muscles.
A. Agonistic
B. Antagonistic
C. Pessimistic
D. None of these are correct. - ANS-B. Antagonistic
Which of the following is NOT a function of skeletal muscle?
A. Produce movement
, B. Maintain posture and body position
C. Stabilize joints
D. Generate heat
E. Affect metabolism
F. Modify chemical structure - ANS-F. Modify chemical structure.
What are the three types of muscle? - ANS-Skeletal, cardiac, and smooth
What muscle is considered striated and involuntary? - ANS-Cardiac muscle
(Remember, you can't make your heart beat)
What muscle is considered striated and voluntary? - ANS-Skeletal muscle
What muscle is considered non-striated and involuntary? - ANS-Smooth muscle
What is the correct organization of muscle?
A. Muscle, fascicles, muscle fibers, myofibrils, thick and thin filaments
B. Myofibrils, muscle fibers, thick and thin filaments, fascicles, muscles
C. Muscle, muscle fibers, fascicles, myofibrils, thick and thin filaments - ANS-A. Muscle,
fascicles, muscle fibers, myofibrils, thick and thin filaments
Skeletal muscle contain _____ mitochondria
A. No
B. Three
C. Many
D. One - ANS-Many
In the structure of skeletal muscle, A bands are _____.
A. Dark
B. Light
C. None of the above. - ANS-A. Dark
In the structure of skeletal muscle, I bands are _____.
A. Light
B. Dark
C. None of the above. - ANS-A. Light
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