The region of the muscle fiber involved in a neuromuscular junction is called the: Group of answer choices Voltage-gated ion channels Synaptic end bulb Synaptic cleft Motor end plate Synaptic vesicle

Q: Drag the correct label to the appropriate structure on the neuromuscular synapse. Re Neuromuscular…

A: A neuromuscular junction (NMJ) can be referred to as a highly specialized chemical synapse formed…

Q: For the skeletal muscle, hydrolyzation of ATP: Group of answer choices At the myosin head gives rise…

A: The contractile proteins that are involved in muscle contraction are myosin and actin. The two…

Q: Actin is sometimes called the "thick" filament. It splits ATP and is responsible for the "power…

A: The movements of different body parts are attributed to the systemic contraction and relaxation of…

Q: Note the color of each three types of muscle fiber: slow twitch, fast twitch oxidative and fast…

A: Slow twitch muscle fibers:  Resistant to fatigue  For sustained,smaller movements and control of…

Q: A motor unit is site of  interaction between a motor neuron and the muscle fiber that it is…

A: Neurons are the specialized cells of the nervous system and are the basic functional unit of the…

Q: What best explains the inability to fully contract a muscle when the muscle is first shortened prior…

A: Muscle contains muscle fiber cells which are specialized for contraction. The muscle movement is a…

Q: Which protein is responsible for blocking the myosin binding site to actin, while the muscle is at…

A: Myosin and actin slides onto each and plays a major role in muscle contraction..

Q: You are working with a patient who has limitations in ankle dorsiflexion. You determine this is a…

A: In the 1940s, PNF (Proprioceptive neuromuscular facilitation) was developed by Dr. Herman Kabat for…

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: Explain the characteristics of these muscle fibers: slow twitch, fast twitch oxidative and fast…

A: Skeletal muscle fibers are striated tissues. These tissues are under the control of the somatic…

Q: Calcium storing membranous network in muscle fibers Transmit the action potential to the interior of…

A: The motor neuron's axon receives an action potential.On the axon, the action potential opens…

Q: The endplate potential decreases with distance because

A: The end plate potential is a potential that propagates to the neighbouring patch of muscle fibre…

Q: describe the microscopic physiological action of a muscle contraction

A: Skeletal muscle contraction is voluntary but smooth muscle and cardiac muscle contraction is not in…

Q: describe the events that lead to muscle contraction starting at the level of the neuromuscular…

A: Muscle contraction occurs when these are initiated by a nerve signal. This is triggered by…

Q: Why does a skeletal muscle fibers always produce the same amount of tension with a single stimulus?…

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

Q: Identify the structure highlighted in green: 三三園 Sarcolemma Myofibril Sarcoplasm

A: The image given is of  excitation-contraction coupling mechanism in skeletal muscle.

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: Describe how muscle contraction can resist movement rather than cause movement

A: Muscle contractions allow movements mainly the most common function of muscles. The contractions of…

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: When discussing the hierarchy of skeletal muscle organization, the is the Highest level of…

A: Humans consists of various systems one such system is the muscular system that consists of muscle in…

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: Number 5 in Graph B represents iand is the result of i The statement above is best completed by the…

A: Need to find what the label 5 represents in the graph given.

Q: Each of the pairs of phrases below describe steps during skeletal muscie contraction. The 2nd phrase…

A: Muscle tissue is a type of tissue which contain actin , Troponin and myosin proteins so as to allow…

Q: Describe the sequence of events that occurs when an action potential arrives at a muscle fiber’s…

A: When the action potential arrives at the end of motor neurons, it excites the skeletal muscles to…

Q: Which statement or statements describe why depletion of ATP after death leads to rigor mortis?

A: Rigor mortis is the third phase of death. It is one of the unmistakable indications of death,…

Q: We control muscle force using motor unit recruitment. When we recruit more motor units, what is…

A: The process of activating different motor units to achieve a specific level and kind of muscular…

Q: explain muscle contraction in several distinct steps starting the release of acetylcholine junction

A: Muscle contraction occurs when the tension generating regions are activated within the muscle…

Q: Describe in detail the events that happen at the neuromuscular junction leading to…

A: There is a communication between a neuron and a muscle fiber through neurotransmitters like…

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 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: Identify the significance of the following molecules/substances in muscle contraction.…

A: Introduction: The motor nerve cells send signals to muscle fibers at the neuromuscular junction. It…

Q: You can choose one or more than one option   About human skeletal muscle contraction, what are the…

A: Actins are the functional unit of muscles. The movement of muscles and their actions are based on…

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: What is the most outer covering (made up of areolar connective tissue sheath) of a muscle fiber…

A: Answer: Nervous system : It is the body system that consists nerve cells, brain and stimuli. It is…

Q: IN WHAT REGIONS OF THE BODY WOULD YOU EXPECT TO FINF DENSE IRREGULAR CONNECTIVE TISSUES, AND WHY…

A: Introduction: Collection of cells that are present in close proximity and are responsible for a…

Q: The type of muscle contraction where the muscle contracts but exhibits no change in length is called

A: The muscle contraction is the classic example of actin-myocin interaction that are present within…

Q: When motor units are recruited to participate in tension development in a muscle, the order of…

A: Introduction  A motor unit consists of a motor neuron as well as all of the skeletal muscle fibres…

Q: Describe the Neural excitation of the muscle and Describe how a signal arriving at the axon terminal…

A: Neurons are the basic unit of the nervous system that carry electrical stimuli throughout the body.…

Q: Which type of muscle fiber arrangement is most appropriate for the shoulder muscle that leads to…

A: Introduction: The muscle is a contractile tissue responsible for the movements of the body. Muscles…

Q: hen an action potential arrives at the nerve terminal of a neuromuscular junction, which of the…

A: An action potential is a brief electrical signal that travels along the membrane of a neuron or…

Q: As an action potential moves along the sarcolemma, the brief opening of voltage-gated Na+ channels…

A: In the resting state, the inside i.e., sarcoplasm contains high concentration of K+ ions and…

Q: Smooth muscle contraction is controlled by releasing neurotransmitters trom: Presynaptic cleft O…

A: Smooth muscle contraction is controlled by releasing neurotransmitters from:

Q: The sliding filament model depicts how myosin motors attached to actin lead to muscle contraction.…

A: Introduction:- There are different types of muscles present in our body - skeletal muscles, smooth…

Q: muscle cannot respond to appropriate nerve stimuli. Which muscle characteristic is impaired?…

A: Muscle is  considered as a contractile tissue that make up the system to qoek it qith the…

Q: By what mechanism do actin and myosin "complete" a muscle contraction?     Folding   Bending…

A: The propensity of a muscle to respond to stimuli is referred to as excitability. A muscle's…

Q: Define the following terms in relation to muscle and give an example of each: origin, insertion,…

A: Introduction: The contractile tissue that brings about a movement is muscle. There are three…