The prospect of inhibiting myostatin and growing larger muscles may be tempting to a great many people. Is there any danger to increasing muscle mass? Explain your answer.

Q: n order to study and understand muscle diseases, one needs to have a good understanding of normal…

A: Muscles contract in a repeated pattern of binding and releasing between the two thin and thick…

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: In your own words, describe the main events occurring between the arrivalof an action potential at a…

A: The chemical synapse that favors the transmission of the signal from the motor neurons to the muscle…

Q: muscle cells are made up of? A. Z bars b. actin c. myosin d. myofibrils

A: Muscles are soft tissues found in most of the animals. Functions of muscles are to produce motion…

Q: You discover a mutant mouse whose skeletal muscles do not work properly.  You remove a piece of…

A: Acetylcholinesterase or acetylhydrolase is a cholinesterase enzyme primarily found at neuromuscular…

Q: Discuss the specific role of ATP in muscle contraction.

A: ATP is Adenosine triphosphate which is also referred as the cellular energy currency.

Q: Muscle fibers that have a high number of mitochondria, contain largeamounts of myoglobin, and…

A: BASIC INFORMATION  MUSCLE It is a type of soft tissue which are found in most of the animals. The…

Q: A student athelete measured his running performance on a treadmill and found the following data: 15…

A: There are two main types of skeletal muscle fibers. They are type I (slow-twitch muscle fibers) and…

Q: Describe the sequence of events by which an action potential in a motor neuron produces an action…

A: Tendons attach skeletal muscles to the bone. Numerous bundles which make up the skeletal muscle are…

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: An energy storage compound that can be stockpiled in muscle cells for short-term use is (a)…

A: Creatine phosphate - is an energy storage compound that can be stock piled in muscle cells for short…

Q: .The poison ouabain (wah-BAY-in), or arrow poison, blocks the Na+ K+pump. What effect would this…

A: Ouabain is also called the g-strophanthin. It is a toxic substance derived from a plant that was…

Q: The single-fiber twitch experiments shown here were generated by stimulating the muscle cell…

A: When a muscle is triggered by a single vibration, an action potential is generated that causes the…

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: Muscle contraction involves a protein conformational change called the power stroke. Where…

A: Each myosin motor protein possesses ATPase activity and functions in a cyclical manner that couples…

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: A skeletal muscle can be stimulated, under laboratory conditions, with a supramaximal stimulus. Is…

A: As the nervous system produces electrical stimuli called an action potential, it passes through a…

Q: If a muscle cell’s sarcoplasmic reticulum had little to no Ca2+, could the muscle cell still produce…

A: Ca2+ ions play an important role in muscle contraction by creating interactions between the…

Q: In order to excite a skeletal muscle, the neurotransmitter must bind to: a)calcium channels. b)…

A: Neurotransmitters such as acetylcholine bind to receptors on the muscle surface and elicit a…

Q: Which of the following is false regarding smooth muscle? A. It contracts slower than skeletal…

A: There are three types of muscles skeletal, cardiac and smooth muscles.

Q: Muscle contraction is not the only process controlled in temperature-regulating reflexes. True or…

A: Muscle contraction is considered as the process, in which tension develops in the site present in…

Q: As skeletal muscle shortens with contraction, the length of the I band remains constant as the…

A: Muscle contraction is defined as the process of stimulation of tension generation sites present…

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: Which of the following would be recruited in a muscle stimulation when contractile strength…

A: Small motor units, typically consisting of one nerve and a few muscle cells, are recruited first.

Q: list that has the order from the smallest to the larges a) Sarcomere , Myofibrilactin , myosin b)…

A: Correct option: b) Actin, -sarcomere, -Myofibril, -Muscle Fibre

Q: Describe the changes that occur in skeletal muscle as a result of endurance training. Include a…

A: Endurance training is sustained physical exercise to improve the endurance of an individual.…

Q: During muscle contraction, which of the following processes takes place? Select one: O a. AMP…

A: Please follow step 2 & 3 for detailed explanation.

Q: ___________ crosses the synapse between a motor neuron and a muscle fiber and is responsibile for…

A: Muscle Contraction It stimulates when an action potential moves along the nerves to the muscles. It…

Q: What do you mean by myosin myofilaments?

A: Muscles consist of munerous muscle fibres. Each muscle fibre contains many myofibrils having…

Q: Which of the following statements is true about the control of muscle glycogen phosphorylase? a) It…

A: The statement A i.e. It is activated by phosphorylation by an active phosphorylase kinase is TRUE.

Q: Acetylcholinesterase is the enzyme that breaks down and inactivates acetylcholine. Some nerve gases…

A: Nerve gas binds to acetylcholinesterase enzyme but only at 1 site. Nerve gas has a phosphorus group…

Q: When a muscle fiber is stimulated with repeated stimuli, the contraction force is summed due to: a)…

A: INTRODUCTION Summation is that the . occurrence of additional twitch contractions before 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: Based on what you know about the neuromuscular junction and muscle contraction, describe very…

A: The neuromuscular junction is The portion at which the neuron axon terminal meets the skeletal…

Q: The transverse tubules store and release calcium ions (Ca<") in response to an action potential in a…

A: The transverse tubules are formed by phospholipid bilayer and play a significant role in the…

Q: catalyzes the reaction that creates creatine phosphate in skeletal muscle   A Creatine phosphatase…

A: Creatine phosphate is the main high-energy, phosphate-storage molecule of muscle.It is primarily…

Q: Without acetylcholine esterase (AChe) will the action of skeletal muscle increase, decrease or not…

A: Acetylcholine esterase is an enzyme ;which play very important role in our body by catalyzing the…

Q: What effect does increasing the frequency of action potentials in a skeletal-muscle fiber have upon…

A: Skeletal muscles -- are the muscle which are in our voulantry control These  are attached to the…

Q: The fast fatigable motor units are used predominantly for which of the following activities?…

A: Fast fatigable motors are used when large forces for a short time are required.

Q: The diagram below represents the terminal cisterna in a muscle. Name and briefly explain the…

A: Calcium causes contraction by reacting with regulatory proteins that prevent actin and myosin from…

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: Describe the ion dynamics of the muscle-contraction process.

A: Tension-generating regions within muscle cells are activated during muscular contraction. Muscular…

Q: Which of the following statements about skeletal muscle is CORRECT? Select one: a. An increase in…

A: Muscle tissue is made up of cells that contract (become shorter) when stimulated by the nervous…

Q: What is the effect of acetylcholine on skeletal muscle cells? Osalivary secretion food digestion…

A: Acetylcholine (ACh) isan organic chemical that functions in the brain and body of many types of…

Q: catalyzes the reaction that creates creatine phosphate in skeletal muscle A. Creatine phosphatase B.…

A: Creatine phosphate is a phosphorylated creatine molecule, which serves as a rapidly mobilizable…

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: What would happen to muscle function if you ingested a toxin that completely inactivated troponin?…

A: The three types of muscle present in the body are skeletal muscle, smooth muscle and Cardiac muscle.…

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.