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BIOS 252 EXAM 1 | ANATOMY & PHYSIOLOGY II EXAM | QUESTIONS AND ANSWERS RATED A+ | CHAMBERLAIN $9.99
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BIOS 252 EXAM 1 | ANATOMY & PHYSIOLOGY II EXAM | QUESTIONS AND ANSWERS RATED A+ | CHAMBERLAIN

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BIOS 252 EXAM 1 | ANATOMY & PHYSIOLOGY II EXAM | QUESTIONS AND ANSWERS RATED A+ | CHAMBERLAIN BIOS 252 EXAM 1 | ANATOMY & PHYSIOLOGY II EXAM | QUESTIONS AND ANSWERS RATED A+ | CHAMBERLAIN BIOS 252 EXAM 1 | ANATOMY & PHYSIOLOGY II EXAM | QUESTIONS AND ANSWERS RATED A+ | CHAMBERLAIN

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  • January 6, 2025
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • bios 252 exam 1
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BIOS 252 EXAM 1 | ANATOMY &
PHYSIOLOGY II EXAM | QUESTIONS
AND ANSWERS RATED A+ |
CHAMBERLAIN

What is the role of the actin filaments?

- Correct Answer - - thin helical structures that form the backbone of the
sarcomere.

- they are also anchored to the Z-Discs



What is the role of the myosin filaments?

- Correct Answer - - thick filaments that are found in the center of the
sarcomere and they are composed of the myosin protein.

- they attach to actin and pull these filaments, resulting in contraction



What is the role of the Z-Discs?

- Correct Answer - - they anchor the ends of the actin filaments

- serves as point of attachment for titan and actin



What is the role of the M-line?

, - Correct Answer - - located at the center of the sarcomere and it helps
stabilize the myosin filaments



What is the H-Zone composed of?

- Correct Answer - - only contains myosin filaments



What does the A-Band contain?

- Correct Answer - - Contains overlapping actin and myosin filaments



What does the I-Band contain?

- Correct Answer - - only contains actin filaments



What is the sarcolemma?

- Correct Answer - - the plasma membrane of a muscle cell



What is the role of the sarcoplasmic reticulum?

- Correct Answer - - stores calcium for the cell



What is the name of the nerves that carry messages TOWARD the CNS
are? - Correct Answer - - afferent neurons

*they carry sensory messages about pain, temperatures, pressure,
touch, etc*

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