Myofilaments Study guides, Class notes & Summaries

AMP 1 test nervous system & muscular Question and answers 2023 verified to pass skeletal muscle - correct answer is responsible for voluntary movement of the body. They are made up of muscle fibers with connective tissue wrappings Epimysium - correct answer the dense, fibrous connective tissue surrounding the entire muscle. At the ends of the muscle it is continuous with the tendons and periosteum of the bone. Perimysium - correct answer The connective tissue that surround bundle...

CanFitPro - FIS Theory Exam (Answered 100% Correctly) ATP-CP System (Max effort - very short) Lactic Acid or Glycolytic System (Hard effort) Aerobic or Oxidative (Steady state effort) 3 energy systems Cardiorespiratory capacity Muscular capacity Flexibility three primary components of fitness • Decreased resting Heart Rate • Decreased risk of cardiovascular disease • Improved endurance • Increased stroke volume & cardiac output 4 benefits of training the cardivoscular system...

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...

What is the connective tissue covering that encloses the sarcolemma of an individual muscle fiber? A) epimysium B) perimysium C) endomysium D) periosteum correct answersC) endomysium What is a fascicle? A) muscle B) bundle of muscle fibers enclosed by a connective tissue sheath C) bundle of myofibrils D) group of myofilaments correct answersB) bundle of muscle fibers enclosed by a connective tissue sheath What are the differences, if any, in the composition for thick and thin m...

smooth muscle correct answers-varied function -non-striated -involuntary -autonomic innervation: excitatory/inhibitory adrenergic receptors, cholinergic muscarinic receptors skeletal muscle correct answers-move skeleton -striated -voluntary (except reflex) -somatic innervation: excitatory cholinergic nicotinic receptors (acetylcholine) Cardiac muscle correct answers-pump blood -striated (and branched) -involuntary -autonomic innervation: excitatory/inhibitory adrenergic receptors,...

1. How do banding patterns change when a muscle contracts?” Muscle contraction causes actin and myosin myofilaments to decrease length and come together. Both the H and I zones become narrow and the A band has no change. ”2. What is the difference between a muscle organ, a muscle fiber, myofibril and a myofilament? ” Muscle organs are tissue composed of cells and fibers producing movement throughout the body that result in contractions. Muscle fibers are composed of myofibrils that c...

Bio 264 Exam 3 Questions and Answers Already Passed 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 ______ G- actin. 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 calci...

Subunits of skeletal muscle cells that are composed of sarcomeres are called - ️️Myofibrils Myosin contains binding sites for____ and_______. - ️️ATP, Actin Which of the following is NOT true of the relaxation of a muscle fiber - ️️The action potential must continue Muscle Myofibrils - ️️Contain myosin and actin myofilaments A sacromere extends from__________. - ️️One Z disk to an adjacent Z disk A sacromere is the - ️️Structural and functional unit of the skeletal...

Skeletal Muscle Tissue - Answer-Striated, multinucleated, attached to bones and perform voluntary muscle contractions Smooth Muscle Tissue - Answer-No striations, mononucleated, involuntary and found in walls of organs Cardiac Muscle Tissue - Answer-Heart muscle, striated, mononucleated and involuntary Characteristics of Muscle Tissue - Answer-*Excitability*; ability to receive stimuli and respond *Contractibility*; ability to shorten *Extensibility*; ability to extend *Elasticity*; abili...

What is the smallest level of organization in the body that contains the body's genetic information? Select one: a. chemical b. cellular c. tissue d. organism - Answer-B. Cellular The cellular level includes the nucleus, an organelle that contains the body's genetic information. Which is an example of a normally occurring positive-feedback mechanism? Select one: a. elevated blood pressure during exercise b. increase in heart rate after blood loss c. decrease in blood pressure a...