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: 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: 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: 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 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: 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…