Myofilaments - Study guides, Class notes & Summaries

CSCS Exam UPDATED ACTUAL Exam Questions and CORRECT Answers Muscle Anatomy - CORRECT ANSWER - muscle belly, fascicle, muscle fiber, myofilaments Muscle connective tissues - CORRECT ANSWER - Tendon, epimysium, perimysium, endomysium Motor Unit - CORRECT ANSWER - 1 alpha motor neuron and all the muscle fibers it innervates

ATP-CP System (Max effort - very short) Lactic Acid or Glycolytic System (Hard effort) Aerobic or Oxidative (Steady state effort) - Answer-3 energy systems Cardiorespiratory capacity Muscular capacity Flexibility - Answer-three primary components of fitness • Decreased resting Heart Rate • Decreased risk of cardiovascular disease • Improved endurance • Increased stroke volume & cardiac output - Answer-4 benefits of training the cardivoscular system _____________ provides ...

Function of all muscles correct answers to generate force and movement Skeletal muscles correct answers - voluntary (somatic neurons) - striated - Multi-nucleated - insertion is more distal - antagonistic muscle groups = flexor-extensor pairs - 40% of body weight Cardiac Muscle correct answers - Primarily involuntary - striated and uninucleated - spontaneous electrical activity - altered by autonimc NS and hormones - intercalated disks that connects them - desmosomes (mechanica...

Which of the following situations occurs in electrically excitable cells? Select one: a. The sodium-potassium pump moves sodium into the cell. b. The opening and closing of ligand-gated channels cause depolarization. c. Sodium ion channels are opened by high extracellular calcium levels. d. When Na ion channels open, K ion channels close. e. Depolarization causes voltage-gated sodium ion channels to open. + + My Account Question 2 Correct 5.00 points out of 5.00 Question 3 Correct ...

Clemson Biol 2220 Exam 3 Questions Correct Answers New Update (A+ Pass) What do skeletal and smooth muscle have in common? - 1. has elongated cells 2. nucleated What do skeletal and cardiac muscle have in common? - 1. nucleated 2. Striations What do smooth and cardiac muscle have in common? - 1. both involuntary control 2. nucleated Define excitability - The ability to change a membrane potential Define contractility - The ability to shorten, when stimulated Define extensibility - Abi...

Anatomy Lecture Exam 2 IU Questions and Answers 100% Pass Internal Intercostals - Answer- Depress the ribs during exhalation, fibers run inferolaterally Skeletal Muscle Tissue - Answer- Voluntary movement of body Maintenance of Posture Muscle tone (continual contraction) Gross Anatomy of Skeletal Muscle - Answer- made up of muscle fibers(cells) Each is an organ and many work in groups Attaches to bone via tendons(dense regular CT) has aponeuroses ( flattened sheet like tendons) Endomy...

CSCS Exam Questions with complete solution Muscle Anatomy - correct answer muscle belly, fascicle, muscle fiber, myofilaments Muscle connective tissues - correct answer Tendon, epimysium, perimysium, endomysium Motor Unit - correct answer 1 alpha motor neuron and all the muscle fibers it innervates neuromuscular junction - correct answer the junction between a motor neuron and one muscle fiber Sarcolemma - correct answer muscle cell membrane Ca++ - correct answer m...

Bio 102 Muscular System / Thomas / WVU Questions and Answers Rated A+ What are the functions of the muscular system? Movement, posture, heat production. Skeletal muscle makes up how much of body mass? 35-40% What sends the signal to muscles? Motor neurons. List the structure of skeletal muscle Bundles of fibers, fiber, myofibril, sarcomere, myosin, actin. What is the functional unit of the muscle system? Sarcomere Actin and myosin are Intracellular proteins and/or myofilament...

1. Myocyte Muscle cell 2. Sarcolemma Plasma membrane of myocyte 3. Sarcoplasm Cytoplasm of myocyte 4. Myofibril Tightly packed filament bundles found within skeletal muscle fibers. Contractional unit of a muscle cell. 5. Sarcoplasmic reticulum Site of calcium storage in a muscle cell. Surrounds the myofibrils 6. Transverse tubules (T-tubule) Inward extensions of the sarcolemma that dive into the muscle fiber and surround each myofibril to form a tunnel- like network within the musc...

Q: When a sarcomere contracts and thin filaments move over thick filaments you would expect to see ________. a. the I bands to appear smaller b. the H zone to appear wider c. the I bands to appear wider d. the A band to appear darker Ans: a Q: Although there are no sarcomeres, smooth muscle still possesses thick and thin filaments. True False Ans: true Q: Curare is a poisonous plant extract. Curare molecules have a chemical structure like the neurotransmitter ACh. Curare can bind...