1 Exampromax - Stuvia US 2025/2026
HPNU 3060: Chapter 12 Review Questions
and Answers (100% Correct Answers) Already
Graded A+
Question: What are the 3 Types of Muscles? ⼀Answer: Skeletal Muscle
Smooth Muscle
Cardiac Muscle
© 2025 Assignment Expert
What are Muscle Fibers? ⼀Answer: Muscle Cells
Exampromax - Stuvia US
Question:
Question: What are Bundled Muscle Fibers Called? ⼀Answer: Muscle
Fascicle
Question: What Connective Tissue Surrounds the Entire Muscle? ⼀
Answer: Fascia
Question: What is the Cell Membrane of Muscle Fiber called? ⼀
Answer: Sarcolemma
Question: What is the Cytoplasm of a Muscle Fiber called? ⼀Answer:
Sarcoplasm
Question: What are Myofibrils? ⼀Answer: Highly Organized Bundles of
Contractile and Elastic Proteins that Carry Out the Work of Contraction
, 2 Exampromax - Stuvia US 2025/2026
Question: What is the Sarcoplasmic Reticulum? ⼀Answer: A Modified
Endoplasmic Reticulum that Wraps Around Each Myofibril
Question: What Structures can be Found in the Sarcoplasm? ⼀Answer:
Glycogen Granules
Mitochondria
Question: What are Transverse Tubules (T-Tubules)? ⼀Answer:
Branching Network that is Continuous with the Sarcoplasmic Reticulum
© 2025 Assignment Expert
Question: What does the Sarcoplasmic Reticulum Consist of? ⼀
Exampromax - Stuvia US
Answer: Consists of Longitudinal Tubes with Enlarged Ends called
Terminal Cisternae
Question: What Structures Form a Triad? ⼀Answer: One T-Tubule and
Two adjacent Terminal Cisternae
Question: What does the Sarcoplasmic Reticulum do? ⼀Answer: Stores
and Releases Calcium
Question: What is a Sarcomere? ⼀Answer: Contractile Unit of a
Myofibril
Question: What are Actin Filaments? ⼀Answer: Proteins that make up
the Thin Filaments of a Muscle Fiber
Question: What are Myosin Filaments? ⼀Answer: Motor Proteins that
make up the Thick Filaments of a Muscle Fiber
, 3 Exampromax - Stuvia US 2025/2026
Question: What are the Two Protein Chains of a Myosin Molecule? ⼀
Answer: Heavy Chains
Light Chains
Question: True or False:
Myosin Light Chains have a Regulatory Function ⼀Answer: True
Question: What is the Purpose of Myosin Heavy Chains? ⼀Answer:
Serves as a Motor Domain that uses ATP to Create Movement
© 2025 Assignment Expert
Exampromax - Stuvia US
Question: What is the Motor Domain of a Myosin also known as? ⼀
Answer: Myosin ATPase
Question: What are the Two Regulatory Proteins of Myofibrils? ⼀
Answer: Tropomyosin
Troponin
Question: What are the Two Giant Accessory Proteins of Myofibrils? ⼀
Answer: Titin
Nebulin
Question: List all the Elements/Features that Each Sarcomere has ⼀
Answer: Z Disks
I Bands
A Band
H Zone
M Line
HPNU 3060: Chapter 12 Review Questions
and Answers (100% Correct Answers) Already
Graded A+
Question: What are the 3 Types of Muscles? ⼀Answer: Skeletal Muscle
Smooth Muscle
Cardiac Muscle
© 2025 Assignment Expert
What are Muscle Fibers? ⼀Answer: Muscle Cells
Exampromax - Stuvia US
Question:
Question: What are Bundled Muscle Fibers Called? ⼀Answer: Muscle
Fascicle
Question: What Connective Tissue Surrounds the Entire Muscle? ⼀
Answer: Fascia
Question: What is the Cell Membrane of Muscle Fiber called? ⼀
Answer: Sarcolemma
Question: What is the Cytoplasm of a Muscle Fiber called? ⼀Answer:
Sarcoplasm
Question: What are Myofibrils? ⼀Answer: Highly Organized Bundles of
Contractile and Elastic Proteins that Carry Out the Work of Contraction
, 2 Exampromax - Stuvia US 2025/2026
Question: What is the Sarcoplasmic Reticulum? ⼀Answer: A Modified
Endoplasmic Reticulum that Wraps Around Each Myofibril
Question: What Structures can be Found in the Sarcoplasm? ⼀Answer:
Glycogen Granules
Mitochondria
Question: What are Transverse Tubules (T-Tubules)? ⼀Answer:
Branching Network that is Continuous with the Sarcoplasmic Reticulum
© 2025 Assignment Expert
Question: What does the Sarcoplasmic Reticulum Consist of? ⼀
Exampromax - Stuvia US
Answer: Consists of Longitudinal Tubes with Enlarged Ends called
Terminal Cisternae
Question: What Structures Form a Triad? ⼀Answer: One T-Tubule and
Two adjacent Terminal Cisternae
Question: What does the Sarcoplasmic Reticulum do? ⼀Answer: Stores
and Releases Calcium
Question: What is a Sarcomere? ⼀Answer: Contractile Unit of a
Myofibril
Question: What are Actin Filaments? ⼀Answer: Proteins that make up
the Thin Filaments of a Muscle Fiber
Question: What are Myosin Filaments? ⼀Answer: Motor Proteins that
make up the Thick Filaments of a Muscle Fiber
, 3 Exampromax - Stuvia US 2025/2026
Question: What are the Two Protein Chains of a Myosin Molecule? ⼀
Answer: Heavy Chains
Light Chains
Question: True or False:
Myosin Light Chains have a Regulatory Function ⼀Answer: True
Question: What is the Purpose of Myosin Heavy Chains? ⼀Answer:
Serves as a Motor Domain that uses ATP to Create Movement
© 2025 Assignment Expert
Exampromax - Stuvia US
Question: What is the Motor Domain of a Myosin also known as? ⼀
Answer: Myosin ATPase
Question: What are the Two Regulatory Proteins of Myofibrils? ⼀
Answer: Tropomyosin
Troponin
Question: What are the Two Giant Accessory Proteins of Myofibrils? ⼀
Answer: Titin
Nebulin
Question: List all the Elements/Features that Each Sarcomere has ⼀
Answer: Z Disks
I Bands
A Band
H Zone
M Line
