Muscular atrophy occurs when: A. A patient lacks the coordination needed to walk normally. B. Muscle fibers shrink and get significantly weaker because they aren't being used. C. Muscles increase in size due to exercise.

Q: Which is a false statement about skeletal muscle structure?a. A myofibril is composed of multiple…

A: Skeletal or Striated muscle- These are present on muscles that are associated with the skeleton.

Q: During evolution, skeletal muscle became adapted to functional de-mands ranging from sudden,…

A: The skeletal muscles of vertebrates are composed of different types of fibers. This includes slow…

Q: The type of muscle cell under voluntary control is the ________. a. smooth muscle b. skeletal muscle…

A: Tissue constitutes a group of cells, arranged in an orderly manner that communicates together, and…

Q: Even though calcium is removed from troponin and tropomyosin, please describe in detail what else…

A: The events that result in the contraction of human muscle fiber starts with the signal by a…

Q: The higher the frequency of action potentials, the higher amount of force produced in a muscle.…

A: An action potential is a change in the membrane potential of the neuron. This is caused due to…

Q: Motor neurons innervate muscle fibers at specialized synapses called_______ . The release of…

A: In “motor neurons”, the cell bodies are located in the spinal cord, motor cortex, or brainstem. The…

Q: Why might stretching a cramping muscle INCREASE the cramping, as well as why would contracting the…

A: Muscles are the tissues that govern physiological processes by their contraction and relaxation. The…

Q: ___ fibers can temporarily store ___ in myoglobin. a. Fast-twitch . . . ATP b. Slow-twitch . . .…

A: Answer: Introduction: Skeletal muscles formed by distinct muscle fibers. And like muscles…

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: Name the three Nobel Prize winners whose research work involved muscle or muscular exercise.

A: Muscles are the soft tissue that has filaments to change its shape and length. The filaments present…

Q: The region where a motor nerve fiber meets a skeletal muscle fiber is called a/an _____.

A: Muscles are the connective tissue that helps in producing movement in the body. There are three…

Q: If you introduced a chemical into a muscle fiber that blocked the voltage-gated calcium channels in…

A: The muscles are the soft tissues found in the animals. They are made up of special types of…

Q: Describe the major events that occur when a muscle fiber contracts. Include all chemicals,…

A: Numerous bundles which make up the skeletal muscle are called fascicles and each of these is…

Q: Which of the following changes takes place when a skeletal muscle contracts?A. Z discs move farther…

A: The Muscle is a soft tissue that is responsible for producing force and motion facilitated by the…

Q: After a vigorous exercise, you may experience cramps in your leg muscles. Why does this happen?

A: Exercise is any bodily activity that enhances or maintains physical fitness and overall health and…

Q: Which of the following sentences is NOT correct? A. Cancellous bone (trabecular) is spongy bone B.…

A: Among the given statements, the final statement seems incomplete. So I am providing solution…

Q: Sketch a sarcomere, and describe the function of the major proteins involved in muscle contraction.

A:

Q: ___________ steroids are designed to promote musclegrowth but have harmful side effects.

A: The muscular framework is an organ framework comprising of skeletal, smooth and cardiovascular…

Q: A smooth, sustained contraction from rapid stimulation of skeletal muscle fibers is called

A: TISSUE: These tissues differ from others in that they have the ability to contract and relax, which…

Q: If a person exercises to achieve bigger muscles, what effort must be exerted and what actually…

A: Muscle hypertrophy: It refers to the increase in muscle cells due to excessive exercise. During…

Q: When a person dies, the body often experiences

A: The tissue is known as the summation of the cells that are similar in function. The muscle is a…

Q: If a drug caused a sudden release of large amounts of calcium in skeletal muscle, from which…

A: Increases in intracellular calcium arises through either calcium influx across the plasma membrane…

Q: Fast-twitch muscle fibers are also called type ________fibers and slow-twitch are called type…

A: There are two types of skeletal muscle fibers - fast twitch and slow twitch.  Fast twitch muscles…

Q: If we need ATP for both contraction and relaxation, how would you explain why rigor mortis appears…

A: Rigor mortis is the onset of stiffness in the dead body several hours after the person dies. It is a…

Q: Following an injury to a nerve, the muscle it supplies with motor nerve fibers may become paralyzed.…

A: In human physiology, muscle contraction is considered a process, which exerts an increase in the…

Q: A.What type of contractions do skeletal muscles do? B. What type of contractions do cardiac muscles…

A: Muscles are usually of three types that is Skeletal,smooth and cardiac  Skeletal muscles are found…

Q: Explain why you can maintain contraction of the hamstring muscles over time.

A: The 3 muscles running down the back of leg, from the thigh to knee are known as hamstring muscles.…

Q: One of the primary reasons that one individual is faster in a 50-meter sprint than another is a. a…

A: The speed of a person is dependent on the type of muscle fiber that is present in an individual. The…

Q: Why would a sprinter experience muscle fatigue before a marathon runner would?

A: Muscles are required in breathing, talking, running, walking, and anybody movement. Actin and…

Q: In which of the following types of exercise would creatine phosphate (CP) be an important source of…

A: Introduction The phosphate-storage molecule group includes creatine phosphate. This chemical can be…

Q: Most of the muscles of the skeleton are attached to areas very close to the joints, so their arms,…

A: *During muscle contracts and shortens  against a load  it will perform work and it will be done by…

Q: A new experimental drug is tested in muscle fibers and it is concluded that it blocks the calcium…

A: The muscle movement is achieved by the actin and myosin interaction in the sarcoma of the muscles.…

Q: A smooth, sustained contraction from rapid stimulation of skeletal muscle fibers is called _______

A: TISSUE:- These tissues are different from other tissues as they have the ability to contract and…

Q: Which of the following statements is unique to skeletal muscle? O a) skeletal muscle has striations…

A: Muscular tissue is the specialized tissue in animals which applies force by contraction  for the…

Q: As you fatigue, the force of your muscles decreases. What physiological processes explain the…

A: Fatigue can be explained as, a temporary decrease in the ability to perm physical exercise or…

Q: In some fitness exercises you will build muscle mass but do not train the muscle to be effective.…

A: Muscle buildup is important for the development of strength and agility. Muscle buildup is basically…

Q: Which statement about striated skeletal muscle is true?   A. The tension generated by a muscle is…

A: Muscle  contains muscle fiber cells which are specialized for contraction. Based on location,…

Q: a) Describe how the isolated muscle behaved as it was stretched progressively. b) What effect…

A: The all-or-none principle asserts that the intensity of a nerve cell's or muscle fiber's reaction is…

Q: Which of the following sentences is NOT correct? A. White fibers make up fast-twitch muscle B.…

A: Living organisms are highly organized as they contain specialized, coordinated parts. All living…

Q: A decline in a skeletal muscle's ability to maintain a constant level of force or tension after…

A: Skeletal muscles Skeletal muscles are the muscles that cover the bone of the body.

Q: Which of the following causes ( the state of ) rigor in skeletal muscle ? a) lack of atp b)…

A: Skeletal muscles enable humans to move and perform daily activities. They play an essential role in…

Q: Skeletal muscles can only produce a mechanical force as they are contracted, but a leg flexes and…

A: The force exerted by the muscle is less than its maximum in a concentric contraction, and the muscle…

Q: During muscle contraction, calcium ions are released by the

A: During muscle contraction, the calcium ions are released by the sarcoplasmic reticulum.