Flexion of biceps muscles during weight-training is an example of _______________ contraction. a. isotonic b. concentric  c. eccentric d. a and b e. a, b, and c   Which of the following skeletal muscle fiber structure is part of the “triad”? a. t-tubule b. terminal cisternae of the SR c. sarcomere d. a and b e. a, b, and c

Q: The cross bridges of the sarcomere in skeletal muscle are made up of                 A. myelin.…

A: Introduction:-  Muscles are delicate tissue present in most animals . These contain filaments like…

Q: In muscle contraction, when nervous stimulation ___, it causes Ca2+ to be ___ the sarcoplasmic…

A: The muscle contraction is depends on the interaction of actin (thin filament) and myosin (thick…

Q: Muscle Fiber Recruitment As intensity increases, in which order are fibers recruited? a. type llx,…

A: Human skeletal muscle is composed of a different collection of muscle fiber types. This range of…

Q: Delayed onset muscle soreness (DOMS) is most closely associated with which type of muscle actio a.…

A: It is experienced by many and characterized by pain and stiffness in muscle.

Q: Why might multiple, small motor units be advantageous over a single large motor unit?   A. They…

A: Motor units participate in regulation of movement of muscle fibers.

Q: Which of the following is a component of the neuromuscular junction? a. axon terminal of a somatic…

A: The muscles contract and relax to enable various movements. The contraction and the relaxation of…

Q: Peristalsis is the wavelike, constant, and rhythmic alternating contractions and relaxations of…

A: Peristalsis is the rhythmic movement of the intestinal muscles which results in the movement of food…

Q: Stimulation of a muscle fiber by a motor neuron occurs ata. the neuromuscular junction.b. the…

A: Anatomy and physiology are the branches of biology, anatomy deals with the study of the structure of…

Q: Botulism toxin inhibits the release of acetylcholine at the neuromuscular junctions. What effect…

A: Neurons are the basic structural and functional unit of the nervous system. Neurons have three…

Q: Which of the following statements is True?a. Tendons contract using the sliding filament…

A: The muscular-skeletal system made up of tendons, ligaments, bones, muscles of various types. The…

Q: Nervous stimulation of musclesa. occurs at a neuromuscular junction.b. results in an action…

A: Answer is d.)  All of these Correct.

Q: At low intracellular Ca2+ concentration, _________________ the active sites on the thin actin…

A: Muscular system is one of the body system which aids in contraction and relaxation of muscle so that…

Q: The function of Ca2+ in skeletal muscle contraction is toa. cause an allosteric change in myosin so…

A: Skeletal muscles are a special type of muscles made up of contractile tissue. They are a type of…

Q: Which of these increases the least as a result of muscle hypertrophy?a. number of sarcomeres d.…

A: Muscle hypertrophy means increase in the size and strength of the muscles. This in turn results in…

Q: During contraction, the bulk of calcium comes from:   A. sarcomere   B. sarcoplasm…

A: There are two questions. One question has been answered. To get the answer for the other question,…

Q: The release of which of the following minerals from muscle cell storage sites stimulates muscle…

A: Sarcoma muscles store calcium in sarcoplasmic reticulum. It gets released when a muscle cell or…

Q: Muscular atrophy occurs when: A. A patient lacks the coordination needed to walk normally. B. Muscle…

A: Muscular atrophy refers to the loss of skeletal muscle. The atrophied muscle normally smaller and…

Q: Which of the following is true?   A. Muscle fibers either will contract with all the force…

A: Introduction: Muscles are the soft tissues present in all mammals. The muscle cells comprise protein…

Q: The function of ATP during muscle contraction is toa. cause an allosteric change in myosin so it…

A: ATP(adenosine triphosphate) causes an allosteric change on myosin so it detaches from actin and…

Q: The plasma membrane of a skeletal muscle fiber is called thea. sarcoplasmic reticulum.b.…

A: Skeletal muscles are involved in movement. Contraction of skeletal muscles makes movement possible.…

Q: Muscle fibers contractions differ with regard to tension and shortening. When a muscle Fiber begins…

A: Isometric and isoconcentric

Q: Muscle Fiber Recruitment As intensity increases, in which order are fibers recruited? a. type llx,…

A: We can say that Human skeletal muscle is composed of a different collection of muscle fiber types.…

Q: All muscles attach to bone or connective tissue at no fewer than two points including an origin and…

A: -Muscle contraction can be described as the process of shortening, tightening or lengthening of…

Q: contraction occurs as the length of the muscle increases. O a. Concentric O b. Eccentric O c. Static…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Find the false statement about white muscle fibers (glycolytic fibers)? Se ect one: a. Fiber…

A: Depending upon the presence or absence of myoglobin muscle fibres can be of two types that is ref…

Q: The action potential of skeletal muscle                 A. is not essential for contraction.…

A: Skeletal muscle fibers are cylindrical, multinucleated, striated, and under voluntary control.

Q: The actual contractile units of muscle, called _____, extend from middle of one _____ to middle of…

A: Muscles are referred to as the soft tissue of the body, contraction, and relaxation of the muscle is…

Q: Muscle contractions where the muscle shortens but tension remains constant are called A. isometric…

A: Muscular system is a type of body system in which regular contraction as well as relaxation leads to…

Q: 28. The pairs of skeletal muscles are the prime mover and antagonist. A. True B. False ____ 29.…

A: Introduction: Muscle is described as the contractile tissue that causes movement. Muscles may be…

Q: When the length of the muscle stays the same but the force increases during contraction it is…

A: The muscular system of the body is made up of three distinct types of muscle fibers which differ…

Q: What do skeletal muscle contractions share in common with smooth muscle contractions?a. Both types…

A: The skeletal muscles are a form of striated muscle under voluntary control of the somatic nervous…

Q: D2

A: When the mesodermally derived muscle tissue encounters any changes in either their length or the…