Thick and thin filaments - Study guides, Class notes & Summaries
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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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Kin 292 Exam 4 || All Answers Are Correct 100%.
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What is the Muscle Cell? correct answers the muscle fiber 
 
Structure of a skeletal muscle correct answers a bundle of fibers 
 
- Epimysium 
- Perimysium 
- Endomysium 
- Fascicle 
-Sarcolemma 
- Muscle fibril 
- Myofibril 
 
Epimysium correct answers covers the entire skeletal muscle 
 
Perimysium correct answers surrounds fascicles 
 
Endomysium correct answers surrounds each muscle fiber 
 
Fascicle correct answers bundle of muscle fibers 
 
Sarcolemma correct answers Muscle's plasma membr...
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MEGA CIBTAC PRACTICE EXAM| 241 QUESTIONS| WITH COMPLETE SOLUTIONS
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What are Corrugations? correct answer: Wavy ridges caused by uneven nail growth; usually result of illness or injury. 
(No impact) (Treatment: Buff over nails, keep hydrated with oil.) 
 
What is the definition of Anatomy? correct answer: The study of body structure 
 
What is the stratum germinativum (stratum basale)? correct answer: -deepest live layer of the epidermis 
-produces new epidermal skin cells (mitosis) 
- Moisture content approximately 83% 
 
What is the stratum corneum? correc...
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GMS 6474 Final Exam 2024 Questions and Answers (Graded A+)
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what does the SR store - ANSWER-proteins and calcium 
 
what is the role of the transverse tubules in the muscle fiber - ANSWER-allow inside of muscle to communicate with the outside of the muscle 
 
how is a sarcomere measured - ANSWER-from z-disc to z-disc 
 
what is contained in the I band of the sarcomere & what color is the band - ANSWER-thin filaments 
titin 
z-disc 
light (isotropic) 
 
what is contained in the A band of the sarcomere & what color is the band - ANSWER-thick filaments 
...
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GMS 6474 final exam questions and Answers 100% correct
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GMS 6474 final exam questions and 
Answers 100% correct 
what does the SR store - Answer- proteins and calcium 
what is the role of the transverse tubules in the muscle fiber - Answer- allow inside of 
muscle to communicate with the outside of the muscle 
how is a sarcomere measured - Answer- from z-disc to z-disc 
what is contained in the I band of the sarcomere & what color is the band - Answer- thin 
filaments 
titin 
z-disc 
light (isotropic) 
what is contained in the A band of the sarcomere...
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GMS 6474 Questions and Answers Rated A+
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GMS 6474 Questions and Answers 
 
Rated A+ 
 
Lecture 2 
 
Muscles can either be ____ or ____? 1. Voluntary 
2. Involuntary 
 
What is one question to ask when comparing voluntary to involuntary muscles? How is the 
underlying tissue metabolized? 
 
Cardiac functional syncytial vs smooth muscle functional syncytial? Cardiac - pacemaker 
cells cause contractions 
Smooth - vasodilation/vasoconstriction 
 
True/False: Smooth muscle has striations? FALSE! 
 
what two factors determine the force pro...
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BIOL 2213 Exam 3 Questions And Answers With Verified Solutions
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_____ is not striated - smooth muscle 
______ results as calcium is pumped into the s. reticulum when an AP stops - relaxation 
_______ shorten during contraction as thin filaments on sides of sarcomeres pulled toward middle - 
H bands 
__________ occurs at same time as QRS complex so it typically doesnt register - atrial 
repolarization 
2 sources of cystolic calcium that initiate smooth muscle contraction - sarcoplasmic reticulum, 
extracellular calcium 
3 main functions of cardiovascular syst...
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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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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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2024 NSCA CSCS Exam ( Version 1 ) New Full Exam Questions and Answers ( Included ) 100% Correct
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2024 NSCA CSCS Exam ( Version 1 ) 
New Full Exam Questions and Answers ( Included ) 100% Correct 
 
1. A skeletal is made up of many ,which 
contain muscle 
or muscle that are multinucleated. Each of 
these contain which are the primary intracellular structure 
(cylindarshaped) which make up the and contain thick protein 
filaments called and thin protein filaments called . Myosin filament contains 
globular heads called 
Answer: skeletal muscle is made up of many fascicles, which contain musc...
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