Sarcoplasmic reticulum - Study guides, Class notes & Summaries
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BIOL 161 Final Questions With Complete Solutions
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Which of the following is the largest? 
 
a. myofilament 
b. myofibril 
c. muscle cell 
d. fasicle correct answer: muscle cell 
 
muscle cells correct answer: Shorten to cause movement of the body. They move the skeleton, heart, and internal organs 
 
Sacrolemma correct answer: muscle cell membrane 
 
scaroplasm correct answer: cytoplasm of a muscle cell 
 
sarcoplasmic reticulum (SR) correct answer: specialized smooth endoplasmic reticulum, which stores, releases, and retrieves Ca++ 
 
wha...
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Bio 161 Exam 4 Review with Complete Solutions
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Bio 161 Exam 4 Review with Complete 
 
Solutions 
 
What is another term for an individual muscle cell? 
 
- Answer: Muscle fiber 
 
Define fasicle in the context of muscle anatomy. 
- Answer: A cluster of muscle cells within the core of a muscle. 
 
Explain the function of the sarcolemma in skeletal muscle cells. 
- Answer: The sarcolemma serves as the outer membrane of skeletal muscle cells, 
maintaining cell integrity and regulating ion movement. 
 
Describe the sarcoplasm and its role wit...
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BPK 105 FINAL EXAM QUESTIONS AND ANSWERS 100% SOLVED GRADE A+
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BPK 105 FINAL EXAM QUESTIONS 
AND ANSWERS 100% SOLVED 
GRADE A+ 
What is actin? Actin is a thin protein filament in muscle fibers that works with myosin for 
muscle contraction. 
What is myosin? Myosin is a thick protein filament in muscle fibers that interacts with actin 
to cause muscle contraction. 
What is a sarcomere? A sarcomere is the basic contracting unit in a muscle fiber, made of 
actin and myosin. 
What is troponin? Troponin is a protein on actin filaments; it binds calcium and ...
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NSCA CSCS Chapter 1 Exam Questions with Answers
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NSCA CSCS Chapter 1 Exam Questions with Answers 
neuromuscular junction - Answer-junction between motor neuron and muscle fibers it innervates 
 
motor unit - Answer-motor neuron and muscle fibers it innervates 
 
myofibrils - Answer-contain the apparatus that contracts muscle cells 
 
myofilaments - Answer-actin and myosin 
 
myosin - Answer-thick filament 
 
actin - Answer-thin filament 
 
longitudinally - Answer-mysoin and actin arranged this way in the sarcomere 
 
sarcomere - Answer-smalle...
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NSCA CSCS Vocabularies Review (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A
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NSCA CSCS Vocabularies Review (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A 
 
 
Q: perimysium 
 
 
Answer: 
 covers bundles of muscle fibers (fascicli) 
 
 
 
Q: endomysium 
 
 
Answer: 
 surrounds each individual muscle fiber 
 
 
 
Q: sarcolemma 
 
 
Answer: 
 continuous with the muscle fibers membrane and endomysium 
 
 
 
Q: motor neuron 
 
 
Answer: 
 nerve cell 
 
 
 
Q: neuromuscular junction 
 
 
Answer: 
 where a nerve cell innervates muscle fibers, ...
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BIOL 252 Exam 2|| 105 Questions|| Correct 100%
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Epimysium - ANSWER Connective tissue layer surrounding muscle organ 
 
Fasicles - ANSWER Muscular subunits that contain muscle cells. Coated by parimysium 
 
Muscle Cell - ANSWER Coated by endomysium 
 
Sarcolemma - ANSWER muscle cell cytoplasm 
 
Unique characteristics of muscle cells - ANSWER High concentration of mitochondria, multiple nuclei, sarcoplasmic reticulum, t-tubules, and myofibrils 
 
Sarcoplasmic Reticulum - ANSWER ER that covers the myofibrils
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BIOS 252 Final Exam Practice test Accurate 100%
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Which of the following is a recognized function of skeletal muscle? 
 
1) A) guard body entrances and exits 
B) maintain posture 
 C) maintain body temperature 
D) produce movement 
E) all of the above - ANSWER E 
 
Nerves and blood vessels that service the muscle fibers are located in the connective tissues of the 
A) myofibrils. 
B) sarcolemma. 
C) endomysium. 
 D) sarcomere. 
E) perimysium. - ANSWER E 
 
Which of the following best describes the term sarcoplasmic reticulum? 
 A) larg...
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Bio 264 Exam 3 Questions And Answers Rated A+ New Update Assured Satisfaction
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What structure runs from Z line to Z line? - Answer-Sarcomere 
The movement of the troponin-tropomyosin complex requires _______ - Answer-Ca2+. 
The actin filament is a polymer formed from 300 to 400 globular subunits called ______ - Answer-Gactin. 
A myofilament is the _________. - Answer-Protein strand composed of actin or myosin 
T tubules ________. - Answer-Conduct action potentials deep into the muscle cell 
A drug that interferes with the active transport of calcium ions from the sarcoplas...
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CSULB BIOL 207 Lab Final Study correctly answered
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CSULB BIOL 207 Lab Final StudyWhat is the function of skeletal muscle? - correct answer Contracts to cause bone movement 
 
What are the structures of the skeletal muscle? - correct answer Tendons and muscle fibers 
 
What does muscle fibers contains? - correct answer Bundles of protein filaments 
 
What are the two protein filaments in muscle fibers? - correct answer Actin (Thin) and Myosin (Thick) 
 
What does the Sliding Filament Model state? - correct answer Actin and myosin DO NOT shorten, ...
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Anatomy and Physiology Muscle Histology MCQs Answers 2023/24
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PHYS 506 Anatomy and Physiology Muscle Histology MCQs Answers 2023/24 
Muscle Histology 
1. Skeletal and cardiac muscle, which are both striated, at resting length contain an A band in each 
sarcomere. This A band contains: 
(A)Essentially all the contractile protein myosin, but no actin 
(B) Essentially all the contractile protein actin, but no myosin 
(C) Essentially all the myosin, plus some actin 
(D)Essentially all the actin, plus some myosin 
(E) Troponin and tropomyosin, but no actin 
Ans...
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