When a skeletal muscle is suddenly stretched :-a- it relaxes suddenlyb- it develops a static stretch reflexc- it develops a dynamic stretch reflexd- it develops clonic contractions

Q: Muscle contraction can occur when: is it 1,2,3,4? A bands lengthen. myosin filaments shorten.…

A: Muscle is a specialized contractile tissue that is a distinguishing characteristic of animals.…

Q: Muscle that has a striped appearance is described asbeing ________.a. elasticb. nonstriatedc.…

A: A muscle is a soft tissue present in the most of the animals. The muscle cells comprise the filament…

Q: I1. Electrical impulses in muscle fibers are called 12. Groups of muscle fibers are that are…

A: The movement of skeleton muscles is voluntary in nature and regulated by central nervous system.…

Q: Which of this muscle is found in heart? O cardiac muscle O smooth muscle O skeletal muscle

A: Muscles are in the form of contractile fibres varying in lengths and form muscular tissue. The…

Q: The _____ of the muscle attaches to the bone that is stationary during movement.a. originb.…

A: Muscles: - muscles are responsible for the movement of the body. They are attached to the bones…

Q: Single-unit smooth muscle cells can stimulate each other because they have:|- a. pacemakers. b.…

A: Smooth muscles are involuntary in nature and non-striated muscle cell which lines the inner side of…

Q: What % or fraction of muscle fibers do we use at any given moment!

A: When a person exercises systems like- The cardiovascular, respiratory, and muscular systems all work…

Q: An important protein in contractile muscle. OA. keratin O B. myosin O c. elastin OD. fibrin

A: The proteins have a variety of functions in the body. The functions of the proteins in the body are…

Q: figure below, the first action considered: First Action Last Action A an O Strong contraction Fast…

A: Electromyography is the diagnostic procedure that allows assessing the health of muscles and nerve…

Q: of his parent's house over the weekend. On Monday, he arrived at the clinic ainful back spasms. He…

A: A back spasm is involuntary tensing or contraction of the muscle in lower back. This condition…

Q: γ-motor neurons control muscle tone by :-a- adjusting the supraspinal facilitatory dischargeb-…

A: Muscle tone refers to the maintenance of partial contraction which important for maintaining posture…

Q: I= band at the time of relaxation H= zone at the time of relaxation Sacomere at the time of…

A: During the muscle cell contraction, the sarcomere must shorten. However, thick and thin filaments…

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 statements regarding summation in skeletal muscle fibers is true?…

A: The correct options are 2 and 4.In skeletal muscles, the muscle fibers are innervated by motor…

Q: The muscles of a professional sprinter are most likely to have ________.a. 80 percent fast-twitch…

A: Skeletal muscles can be grouped into fast and slow fibers based on how quickly they can contract and…

Q: Does not need to be a super indepth answer. Explain the concept of the following realated to…

A: Excitation–contraction coupling (ECC) is the physiological process in which a series of events…

Q: How could the nervous system cause a skeletal muscle to produce themost forceful contraction it is…

A: Muscles are soft tissues present in most animals. They contain protein filaments called actin and…

Q: The functional unit of skeletal muscle is the sarcomere area between two Z lines and sarcomere area…

A: Skeletal muscles are also known as striated muscles as they are striped or striated. It is a…

Q: Which of the following is arranged in order from smallest tolargest?a. Motor unit < sarcomere…

A: When a nerve impulse travel to the muscle contraction that is an action potential causes the muscles…

Q: Any stimulus above a maximal stimulus will elicit

A: Any stimulus above a maximal stimulus will elicit the same maximal response. Therefore, OPTION 4 -…

Q: Fill in the blank:  The P wave corresponds to depolarization of the muscle fibers of the…

A: A human heart is 4 chambered mascular organ. Its present inside chest and its similar to a fist in…

Q: During muscle contraction, the I band a. hides the H zone. b. shortens or narrows. c. overlaps the Z…

A: SARCOMERE It is the complicated unit of striated muscle tissue. It is the repeating unit between two…

Q: The tendon of a muscle O Is don

A: Tendons are tissues that attach a muscle to other parts of the body like bones. They are the…

Q: The diagram shows Tasha's arm as she bends her am to pull back her tennis rackel Contracted muscle…

A: Ans: The tension generated in the muscle causes them to contract and lowering the tension leads to…

Q: The EMG is a recording of: * The action potentials of the motor nerves supplying the muscle fibers.…

A: Introduction: Action potential is a short-lasting event in which the electrical membrane potential…

Q: The nuclear-bag fibers of muscle spindles are innervated by :-a- Aγ nerve fibersb- Aβ nerve fibersc-…

A: The muscle spindles are stretch receptors inside the body of a muscle. The reflexes are immediate or…

Q: Stretch of an innervated muscle evokes :-a- contraction of its spindlesb- contraction of its…

A: The stretch reflex (myotatic reflex) is a monosynaptic reflex that controls the length of a skeletal…

Q: Skeletal muscle contraction requires: O calcium ions O ATP O arrival of a nerve impulse all the…

A: Skeletal muscle is composed of muscle fibres which have smaller units called myofibrils. There are…

Q: A tendon jerk :-a- is a dynamic stretch reflex b- is a static stretch reflexc- is evoked by…

A: A reflex action is an autonomic and rapid response to a stimulus, which minimizes any damage to the…

Q: Nomenclature of Muscles Actions of muscles O Elasticity O Extensibility Automaticity Contractility

A: Note: According to the guidelines, first question has been answered here. Please repost the other…

Q: "When a muscle develops increased tension, but does not shorten, it is said to exhibit" O isotonic…

A: Muscle contraction is the development of tension in the muscle fibers. It can be described with two…

Q: When compared to normal muscle, the response of the denervated muscle to electrical stimulation…

A: Normal muscle fibers appear polygonal in shape whereas denervated muscle appears angular and…

Q: "When a muscle develops increased tension, but does not shorten, it is said to exhibit" isotonic…

A: Muscle contraction It is defined as the tightening, shortening, or lengthening of muscles during the…

Q: Fill in the blank:  The T wave corresponds to repolarization of the muscle fibers of the…

A: Step 1 Repolarization takes place when the membrane potential returns to a negative value.…

Q: Most of our movements are classified as tetanic summation titanic twitches

A: Body movement Movement in simplest terms is defined as the state of changing the position of a body…

Q: Now in your own words, EXPLAIN (1) howa neural impulse is transferred to a muscle cell this is the…

A: Neural impulse or a nerve impulse refers to a signal that is transferred along the nerve fiber. It…

Q: Inverse stretch reflex :-a- increases the possibility of avulsion of the excessively stretched…

A: The inverse stretch reflex also is known as Golgi tendon reflex refers to the self-induced…

Q: Clonus :-a- is a sign of decreased supraspinal facilitationb- initiated by briefly stretching the…

A: The nervous system is the system of nerves that are spread in every part of the human body. These…

Q: The ocular muscle is an example of: a. Slow twitch muscle O b. Fast tetanus muscle C. Slow tetanus…

A: Ocular muscle has a unique slow non  twitch  , fatigue resistant muscle fiber    Its a  slow twitch…

Q: What is the difference between treppe and tetany? Mark ALL that apply. there is no summation in…

A: Treppe is a muscle contraction in which the graduated series increased in vigorous contractions when…

Q: Tendon jerks are clinically examined to asses :-a- integrity of muscle spindlesb- integrity of…

A: A reflex is an involuntary and sudden movement in response to a stimulus. It is an autonomic…

Q: Why does your heart never tire of constantly beating to pump blood throughout your body? OA It…

A: Question- Why does your heart never tre of constantly beating to pump blood throughout your body? A)…

Q: The location of a muscle’s insertion and origin candetermine ________.a. actionb. the force of…

A: The skeletal muscle attaches to the bone at two or more places. When the place is a bone that…

Q: The tendon jerk which has its center in the 5th and 6th cervical segments ofthe spinal cord is :-a-…

A: Tendon reflex is a myotatic or deep reflex in which the muscle stretch receptors are stimulated by…

Q: Spasticity of the paralyzed muscles in UMN lesions is associated with :-a- inhibition of tendon…

A: The upper motor neuron can be defined as the lesion of the neural pathway that lies above the…

Q: In an isometric contraction, the muscle develops tension but does not: a.  Expend energy. b.…

A:

Q: The discharge from Golgi tendon organs initiated by excessive stretch ofa skeletal muscle produces…

A: Introduction  Golgi tendon organ are the proprioceptor (sense organ) which receives the information…

Q: Binds calcium in skeletal muscle cells Occurs in smooth muscles only 1. 2. Is the primary source of…

A: Muscle is a soft tissue found in animals which consists of actin and myosin that slides over each…

Muscle Action

A change in the body or a bodily organ as a result of its functioning is referred to as an action. Muscle action can be defined as the specific movement of a bodily part generated by the contraction of a muscle. The muscle proteins actin and myosin are the important contractile proteins involved in muscle action. Muscle contraction, in addition to movement, serves several other important functions in the body, including posture, heat generation, and joint stability. Muscle contraction maintains posture, which includes standing and sitting.