Normal (Flexion) Normal (Extension) Tetanus Motor Motor neuron neuron stimulated; this muscle inhibited; this muscle contracts. relaxes. Motor Motor- neuron stimulated; this muscle contracts. neuron Both muscles contract and inhibited; FIGURE 23.9 this muscle Tetanus and relaxes. Inhibitory Neuron Function arm cannot move. ? How does tetanospasmin cause muscle contraction?

Q: What are the physiological causes of muscle fatigue?

A: Muscle fatigue is a common occurrence during or after exercise. It refers to the decrease in a…

Q: Which Factors Determining Muscle Tension?

A: The soft tissue-like structure found in the majority of the animals including human beings is known…

Q: How long can glycolytic catabolism fuel muscle activity?

A: Catabolism can be defined as the type of metabolic activity in which the molecules break into…

Q: How does the arrangement of myofilaments produce the characteristic striations of skeletal muscle…

A: Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth…

Q: What are three functions of ATP in muscle contraction?

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

Q: By what mechanism are skeletal muscles induced to relax?

A: Skeletal muscles are referred to as the muscles that are voluntary in control and associated with…

Q: What is migrating myoelectrical complex (MMC)?

A: At fasten time, The contraction of muscle in stomach and in small intestine to clean the residual of…

Q: List the Functions of ATP in Skeletal Muscle Contraction?

A: Muscle is a bundle of fibrous tissue, which is present in many higher animal bodies. There are three…

Q: Simplify the term for a strong partial agonist

A: Pharmacology deals with the drugs, their development and conduction of the related experiments.

Q: What are the three functional types of proteins found in a myofibril?

A: A muscle fiber is made of many Myofibril and myofibrils are made of many myofilaments. Myofibrils…

Q: Describe the role of stretch receptors in skeletal muscles?

A: Skeletal muscles are voluntary muscles present in the body that are responsible for causing…

Q: What is the role of ATP and ATP hydrolysis in the cycle of actin-myosin association and…

A: ATP (adenosine triphosphate) and ATP hydrolysis play crucial roles in the cycle of actin-myosin…

Q: What changes occur to muscle at the cellular level in response to resistance training?

A: Physical training is the set of activities that changes the appearance of skeletal muscles and…

Q: What happens when theoxygen supply is insufficientto maintain aerobic cellularrespiration during…

A: Cellular respiration is a combination of metabolic reactions that occurs in the cells of organisms.…

Q: How do calcium ionsparticipate in musclecontraction? Why do bothmuscle contraction andmuscle…

A: Muscle contraction is the process of activating tension generating sites in the muscle fibers.…

Q: What is the physiologic basis of muscle fatigue?

A: The muscular system of the body is comprised of three different types of muscles. These are-…

Q: What cellular changes could cause the skeletal muscle to become rigid?

A: Skeletal muscle cells do not relax or remain in a rigid state due to lack of ATP and so muscle…

Q: What do smooth muscle plasma membranes contain?

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

Q: Outline the signaling events that lead to resistance training-induced increases in muscle growth.

A: “Resistance training” causes an increase in the size or mass of a muscle. This happens because of…

Q: What are Fast-glycolytic fibers?

A: Muscle tissues are made up of muscle fibers that are composed of myofibrils composed of sarcomere…

Q: How is the contraction of smooth muscle regulated?

A: Muscle is the bundle of soft tissues present in the human body. Muscle attachment with the bony…

Q: What is the Control of Muscle Tension?

A: The formation of actin-myosin cross-bridges is triggered by neural control, resulting in sarcomere…

Q: When does anaerobic metabolism occur in skeletal muscleand what are the effects of this?

A: Anaerobic metabolism can be defined as the process in which the production of adenosine triphosphate…

Q: What are the characteristics of motor proteins? How do organisms use them?

A: Introduction: Proteins are one of the major biomolecules consist of long chains of amino acids. The…

Q: Magnesium blocks voltage-gated calcium channels on the membrane of smooth muscle cells. How do…

A: Inorganic ions are also important players in regulating our metabolism and overall working may it be…

Q: What chemicals are needed to perform a muscle contraction?

A: Muscle contraction refers to the activation of tension-producing sites inside a muscle cell. It does…

Q: What ion is involved in summation of contraction?

A: Contraction is defined as the process of shortening of I band during muscle contraction.

Q: What are oxidative fibers?

A: The skeletal muscle fibers are characterized based on the metabolic processes undergoing inside them…

Q: What are the Regulatory Molecules that mediate exercise-induced changes in muscle?

A: Muscle is soft tissue and consists of protein filaments of myosin and actin. These filaments slide…

Q: What role does calcium have in muscle contraction?

A: The signal of muscle contraction initiates from the central nervous system. During the process of…

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

A: With alternative arrangements of light and dark band, skeletal muscles are striated muscles. They…

Q: What stores CA+ in the muscle cells and what stores CA+ as a reservoir in the human body?

A: Numerous ion channel proteins pumps are located within the SR membrane and it helps to pump calcium…

Q: What evidence supports a sliding filament-cross-bridge mechanism of contraction in smooth muscle?,…

A: The evidance for sliding filament cross bridge mechanism  is inferential  and derived from…

Q: What is the relationship between exercise and muscle

A: In response to various stimuli when the size of the cells increases, the condition is called…

Q: What is the normal end product of anaerobic exercise in muscle?

A: An anaerobic exercise is a form of exercise that uses no oxygen to break down glucose in the body.…

Q: An athlete is aiming to optimize their protein intake for muscle repair and growth. Which of the…

A: Optimizing dietary protein intake is an important consideration for athletes aiming to enhance…

Q: Describe the two mechanisms by which muscle glycogen is broken down to glucose (glycogenolysis) for…

A: The question is to discuss two mechanisms by which muscle glycogen is broken down to glucose…

Q: What factors determine the duration of an isotonic twitch in skeletal muscle? An isometric twitch?

A: To a single action potential, twitch is the mechanical response of a muscle fiber. Before the…