Myofilaments - Study guides, Class notes & Summaries

Each skeletal muscle is an oran that contains.... : muscle tissue, connective tissue, nerve, and blood vessels. how much fibrous connective tissue/epimysium covers the body? : 430 skeletal muscles what is the function of the axon mylination? : speed of impluse increases high mylination large diameter - axon what is the salatory conduction of the axon? : jumping-more guting actions what is the complete list of a structure? : tendon epimysium fasciculus perimysium muscle fiber 2 | ...

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 ...

A&P Straighteline Final ACTUAL EXAM QUESTIONS AND REVISED CORRECT ANSWERS | UPDATED !! What is smooth muscle tone? Select one: a. can rapidly develop action potentials b. shallow invaginations of cell membrane c. relatively constant tension maintained for a period of time d. intracellular cytoskeleton e. enzyme that removes phosphate from myosin - ANSWER : c. relatively constant tension maintained for a period of time The sites where a chemical substance is transmitted from the ...

Three types of muscle in the human body are the following except: a. striated b. cardiac c. smooth d. celiac - Answer d. celiac The following are FUNCTIONAL characteristics of muscle except: a. heat production b. communication c. excitability d. extendability - Answer C. communication A muscle cell membrane is: a. a sarcolemma b. made of dense connective tissue c. larger the muscle organ itself d. non permeable - Answer a. a sarcolemma The 2 myofilaments in a myofi...

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 ...

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...

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, ...

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...

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 the ab...

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...