Sarcomere Study guides, Revision notes & Summaries

What structure runs from Z line to Z line? Sarcomere The movement of the troponin-tropomyosin complex requires _______ Ca2+. The actin filament is a polymer formed from 300 to 400 globular subunits called ______ Gactin. A myofilament is the _________. Protein strand composed of actin or myosin T tubules ________. Conduct action potentials deep into the muscle cell A drug that interferes with the active transport of calcium ions from the sarcoplasm back into the sarcoplasmic reticulum would...

ACSM CPT Exam Review Questions and Answers 100% AccurateACSM CPT Exam Review Questions and Answers 100% AccurateACSM CPT Exam Review Questions and Answers 100% Accurate What is the function of the tricuspid valve? A. It acts as a pacemaker. B. To pump blood through the heart. C. Prevents backflow of blood to the left atrium. D. Prevents backflow of blood to the right atrium. - ANSWER-Answer: D What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D...

1.Nuclear pores: A)Combine to form a hexagonal structure B)Have 50nm in diameter C)Their number is not connected with cellular activity D)Nuclear lamina are connected to their inner rings E)A and C are correct F)B and D are correct E)A and C are correct The conducting zone of the respiratory system: A) Includes the upper airways, trachea and the bronchial tree (including the terminal bronchioles) B) Is designed for airflow and respiration C) Includes only the nose and the pharynx ...

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...

CSCS Exam Scientific foundations topics Questions & Answers 100% CorrectCSCS Exam Scientific foundations topics Questions & Answers 100% CorrectCSCS Exam Scientific foundations topics Questions & Answers 100% CorrectCSCS Exam Scientific foundations topics Questions & Answers 100% Correctwhat are the major muscles and muscle groups? Where are they located - ANSWERupper body: abdominal, pectoral, trapezius, latissimus dorsi, erector spinae, biceps, and triceps lower body: quadriceps, hamstrings...

NASM Guide to Bodybuilding Exam | Questions and Verified Answers | 100% Correct | Graded A + (2024 / 2025 Update) Three Types of Muscle Correct Answer 1. Skeletal 2. Cardiac 3. Smooth 2 forms of Hypertrophy Correct Answer 1. In series 2. In parallel Primary mechanism for hypertrophy associated with resistance training Correct Answer Increase in number of sarcomeres in parallel How is in series hypertrophy achieved Correct Answer Increasing the number of sarcomeres- basic functional unit of muscl...

What is the function of the tricuspid valve? A. It acts as a pacemaker. B. To pump blood through the heart. C. Prevents backflow of blood to the left atrium. D. Prevents backflow of blood to the right atrium. - correct answer Answer: D What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D. Sarcolemma - correct answer Answer: B Which chamber of the heart is responsible for pumping oxygenated blood to the body? A. Right ventricle B. Left ventri...

ISSA Strength and Conditioning Final Exam Questions And Answers Sliding Filament Theory - ANS Actin filaments at each end of the sarcomere slide inward on myosin filaments, pulling z-lines toward the center of the sarcomere and thus shortening the muscle fiber. Muscle fiber fatigue order - ANS Type 2a Type 2x Type 1 lactic acid - ANS Produced in muscle cells from the reduction of pyruvate (under anaerobic conditions) to regenerate NAD+ so that glycolysis can continue. A ris...

CSCS Practice Exam 2024/2025 Each muscle fiber is surrounded by a connective tissue called? - ANSWER Endomysium What is released from the sarcoplasmic reticulum into the myofibril, causing tension development in a muscle? - ANSWER Calcium ions that bind to troponin What type of muscular contraction occurs in the pectoralis major during the slow, controlled, d...

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, ...