Thin filament - Study guides, Class notes & Summaries
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2024 NSCA CSCS Exam ( Version 5 ) New Full Exam Questions and Answers ( Included ) 100% Correct
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2024 NSCA CSCS Exam ( Version 5 ) 
New Full Exam Questions and Answers ( Included ) 100% Correct 
 
1. sliding filament theory 
Answer: theory that actin filaments slide toward each otherduring muscle 
contraction, while the myosin filaments are still 
2. Z line 
Answer: A dark thin protein band to which actin filaments are attached in a striated 
muscle fiber, marking the boundaries between adjacent sarcomeres. 
3. T tubules 
Answer: Also called transverse tubules, these are deep invaginations...
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ex phys final exam practice questions and answers 100% pass
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ex phys final exam practice questions and 
answers 100% pass 
What is a neuromuscular junction? - Correct Answer ️️ -Junction between motor 
neuron and muscle fiber 
What is a motor unit? - Correct Answer ️️ -Motor neuron and all fibers it innervates 
What is a motor end plate? - Correct Answer ️️ -Pocket formed around motor neuron 
by sarcolemma 
What is a neuromuscular cleft? - Correct Answer ️️ -Short gap between neuron and 
muscle fiber 
What happens when acetylcholine is rel...
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WVU Biology 102 Exam 5 Questions and Answers Already Passed
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WVU Biology 102 Exam 5 Questions and 
 
Answers Already Passed 
 
What are the functional units of the nervous system? neurons 
 
Basic structure / function of the neuron - dendrites, cell body and axon. Dendrites- receive 
impulses from the synapses of other 
Axon- place along which the message is sent. Long rope like object. 
Myelin Sheath- cover around the Axon, increases the speed of the message sent. 
 
What happens during an "action potential"? Sodium (Na) start out and then rushes in- 
...
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GMS 6474 Exam Questions and Answers 100% Correct
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GMS 6474 Exam Questions and Answers 100% Correct 
Lecture 2 
Muscles can either be ____ or ____? - Answer- 1. Voluntary 
2. Involuntary 
What is one question to ask when comparing voluntary to involuntary muscles? - 
Answer- How is the underlying tissue metabolized? 
Cardiac functional syncytial vs smooth muscle functional syncytial? - Answer- Cardiac - 
pacemaker cells cause contractions 
Smooth - vasodilation/vasoconstriction 
True/False: Smooth muscle has striations? - Answer- FALSE! 
what tw...
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BIOS 252 Final Exam Review Questions With 100% Correct Answers.
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What are the three types of muscle tissue? - Skeletal, Cardiac, and Smooth 
What are characteristics of skeletal muscle? - Striated, voluntary, multinucleated, somatic 
nervous system control 
What are characteristics of smooth muscle? - Non-striated, involuntary, uninucleated, autonomic 
nervous control 
What are characteristics of cardiac muscle? - Striated, branching, uninucleated, involuntary, 
autonomic nervous control, intercalated discs (gap junctions) 
What is the thick filament? - Myosi...
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KINE 1300 EXAM 1 (Ch 1, 2, 4, 24) || very Flawless.
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Myosin correct answers Thick filament in sarcomere 
 
Actin correct answers Thin filaments in sarcomere 
 
Z line correct answers Connective tissue that binds actin and myosin in a sarcomere 
 
What is the first step in muscle movement? correct answers 1. In the ready state, the myosin crossbridge is tightly bound at a 45 degree angle to the actin filament 
 
What is the second step in muscle movement? correct answers 2. ATP binds to myosin, allowing it to release from the actin filament 
 
What...
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APHY 201 - Advanced Human Physiology: Summer 2024 Exam 3 Completely and Accurately Solved
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APHY 201 - Advanced Human Physiology: Summer 2024 Exam 3 Completely and Accurately Solved 
 
muscle fiber - Answer>>With an elongated shape and the presence of multiple nuclei, a skeletal muscle cell is also referred to as a ____. 
 
myofibrils - Answer>>Muscle filaments are part of cylindrical bundles called _____ which extend from one end of the fiber to the other, linked to tendons. 
 
thick filaments - Answer>>_____ are composed almost entirely of the protein myosin. 
 
sar...
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ex phys final exam practice questions and answers 100% pass
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ex phys final exam practice questions and 
answers 100% pass 
What is a neuromuscular junction? - Correct Answer ️️ -Junction between motor 
neuron and muscle fiber 
What is a motor unit? - Correct Answer ️️ -Motor neuron and all fibers it innervates 
What is a motor end plate? - Correct Answer ️️ -Pocket formed around motor neuron 
by sarcolemma 
What is a neuromuscular cleft? - Correct Answer ️️ -Short gap between neuron and 
muscle fiber 
What happens when acetylcholine is rel...
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CSCS Exam Prep Questions with Correct Answers 2023-2024
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Components of myofibrils myosin- thick filament, with head , rsponsible for splitting ATP providing energy for the power stroke to grab onto the actin 
 
actin- thin filament, double helix 
troponin in actinbinds with Ca2+ from SR, exposes binding site on myosin to form cross bridges 
 
Crircular muscle structure arranged in a concentric ring 
 
Convergent muscle structure broad origin leading to a fan shaped muscle, looks similar to a brush or duster 
 
Parallell or longitudinal muscle structu...
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HBS Unit 4 Study Guide latest questions and answers all are correct graded A+
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Skeletal muscle - an organ specialized for contraction, composed of striated muscle fibers (cells), 
supported by connective tissue, attached to bone by a tendon or aponeurosis, and stimulated by somatic 
motor neurons 
Sarcomere - any of the repeating structural units of striated muscle 
Sliding filament mechanism - the explanation of how thick and thin filaments slide relative to one 
another during striated muscle contract to decrease sarcomere length 
Insertion - the attachment of a muscle t...
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