What happens to calcium ions when muscle contraction ends and relaxation begins? O The ions diffuse back into the motor neuron O The ions must be actively transported back into the sarcoplasmic reticulum The ions diffuse back into the capillaries to be stored in the bones The ions remain stored within the Z-lines of the sarcomere The ions diffuse into the T-tubules and are stored there

Q: Which of the following summarizes the role of acetylcholinesterase in muscle contraction? O opens…

A: Acetylcholinesterase (AChE) is an enzyme that breaks down the neurotransmitter acetylcholine in the…

Q: which decreases cytoplasmic calcium ion concentration The relaxation of skeletal muscle relies on…

A:

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: Once an action potential arrives at the neuromuscular junction, there is a sequence of events that…

A: When a muscle fibre is activated, a short electrical signal called an action potential is produced…

Q: e following are reg itch? (choose all that apply) e first phase where the "cross-bridge" c

A: The contraction of a muscle fiber in response to a stimulus by the nervous system is called as a…

Q: Neurons controlling skeletal muscle contraction are which type? Multipolar motor neurons Bipolar…

A: The neurons are classified into different categories on the basis of certain features. They can be…

Q: Myosin filaments iterdigitate with actin filaments in order to bring about muscle contraction.…

A: The process of muscle contraction is necessary for the normal physical activities of the body. Force…

Q: the process of muscle contraction, which of the following steps immediately precedes the influx of…

A: Muscle contraction:-  Is the response  a muscle has to any kind of stimuli where the result is…

Q: The contraction of skeletal muscle fibers is prevented by regulatory proteins located on the: O thin…

A: Muscle contraction is referred to as the tightening of the muscles present in the body of an…

Q: What is the function of calcium in muscle contractions? to bind to troponin and change its…

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

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: uscle action, which of the following represents the correct sequence of events? 1. Action potential…

A: The correct Answer is B  That is 1-5-2-3-4

Q: All the following are necessary for a skeletal muscle cell to full relax, except one. Which answer…

A: Muscle is a delicate tissue found in many creatures. Muscle cells contain protein fibers of actin…

Q: Why does a skeletal muscle cell generate the same amount of tension with each single stimulus? O…

A: Neural control initiates the formation of actin and myosin cross bridges, leading to the sarcomere…

Q: Based on your understanding of skeletal muscle fiber physiology, which of the following processes is…

A: ATP is the adenine tri phosphate and is the instant source of energy .It is used in many of the…

Q: Which of the following are true regarding length/tension relationships in muscle?

A: Muscle contraction is a major phenomenon associated with the functioning of the myofibril occurring…

Q: Which of the following is NOT true of fast oxidative skeletal muscle fibers? O All of the above…

A: Muscular tissue consists of cells called muscle fibers that are specialized for contraction.…

Q: Arrange the steps of muscle innervation and contraction in response to touching a hot plate.…

A: Sensory neurons(afferent neurons) are defined as the type of nerve cells where they get activated…

Q: If Ca2+ pumps of the sarcoplasmic reticula fail to function, what will happen to the tension…

A: Muscle is a soft tissue like structure which is primarily responsible for the movement in the body.…

Q: Which of the following step(s) about the excitation of skeletal muscle is/are incorrect?   1.…

A: Muscle contraction is an example of a complex biological process. The excitation of skeletal muscle…

Q: Muscles relaxatiom occurs when acetylcholine is cleaved from its receptors ,calcium is pulled back…

A: The muscle tissue present in the human body is primarily responsible for the movement in the body.…

Q: Which of the following does not occur during the excitation contraction coupling of skeletal muscle?…

A: Excitation contraction coupling of skeletal muscle is the connection between electrical action…

Q: What happens after Na+ and K+ rush into and out the muscle cell at the neuromuscular junction (NMJ),…

A: Neuromuscular Junction is the junction between the terminal branch of the nerve fiber and the muscle…

Q: Which of the following would NOT occur as a result of regular exercise to a specific muscle group…

A: The exercising involves the training of muscles by putting heavy load on them, due to exercising the…

Q: Which of the following statements concerning homeostasis is false? A regulated variable is one for…

A: Question - 1) - Which of the following statements concerning homeostasis is false? (A.) A regulated…

Q: Why does continuous calcium release within a muscle fiber cause greater tension? O Activates more…

A: Maximal tension in muscle happens when thick and thin fibers crossover greater extent inside a…

Q: Which event occurs earlier in time, as compared to the others listed, to bring about skeletal muscle…

A: Skeletal muscles show contraction when stimulated. Skeletal muscles contract with varying degrees of…

Q: Order the events leading to muscle contraction. Ca ions bind to troponin myosin binds to actin…

A: Muscle contraction It is defined as the muscles tightening or lengthening during performing an…

Q: Which of the following statements is FALSE regarding skeletal muscle contraction? O a. Calcium binds…

A: Skeletal muscles are the striated muscles that are voluntary in nature and are regulated by the…

Q: Match the relaxation and contraction action of the skeletal muscle with the events mentioned. V…

A: The basic functional unit of contraction is Sarco mirror muscle contraction involves three phases…

Q: Which of the following is NOT correct regarding muscle contraction? O Ca++ in the sarcoplasm returns…

A: Muscle is defined as a group of tissues where they play a major role in producing motion and force,…

Q: en the action potentials stop, the concentrations of contraction cycle. calcium ATP phosphate sodium

A: Skeletal muscles are one of the types of muscles; they are typically attached to the bone means of…

Q: The sarcoplasmic reticulum is: the cell membrane that surrounds the entire muscle fiber area that…

A: The Sarcoplasmic reticulum is an extensive network of specialized smooth endoplasmic reticulum…

Q: Which of the following are correct regarding processes that are involved in the Latent period a…

A: Muscle fibers consist of a single muscle cell. They help control the body's internal energy. When…

Q: What are the events that occur during contraction of a muscle fiber? O Binding of ACh to ACh…

A: Neuromuscular junction (NMJ) is the synaptic connection between the terminal ends of a motor neuron…

Q: Summation, a property of skeletal muscles, is primarily caused by! O Lactic acid buildup O…

A: The two main characteristics of skeletal muscle fiber are Excitability and Extensibility. That means…