Check all that occur when a muscle is at its normal resting length before contracting.Check All That ApplyUpon contraction, the amount of active tension it can generate is less than normal.Upon contraction, the amount of active tension it can generate is less than normal.Upon contraction, the amount of active tension it can generate is maximal.Upon contraction, the amount of active tension it can generate is maximal.There is very little overlap between thick and thin filaments.There is very little overlap between thick and thin filaments.There is optimal overlap between thick and thin filaments.There is optimal overlap between thick and thin filaments.

Complete the sentences by choosing the correct word from each dropdown menu.In resting muscle fiber, a is normally 2.0 to 2.5 micrometers long.This is the optimum length for producing maximum when the muscle contracts.If a muscle fiber is overly contracted, the filaments but against the Z discs.Conversely, if the muscle fiber is overly stretched, there is not enough overlap between the thick and myofilaments.Therefore, if the thick and thin filaments do not overlap, very few are formed.

Towards the end of a muscles range of motion when lengthening, which of the following statements is true regarding the contractile component of muscle?Group of answer choicesonly small forces can be generated as most of the cross-bridges cannot reach the actin filamentslarge forces can be generated as titin extends and develops considerable tensiononly small forces can be generated as the actin filaments overlap each other and prevent some cross-bridges binding to their respect actinlarge forces can be generated as all the cross-bridges can easily bind the actin filament

You are designing an experiment to examine the performance of a skeletal muscle bundle under different physiological conditions, using an electrical stimulator to initiate the muscle contraction. The first step of the protocol is to determine the stimulator settings that result in the maximum tension that can be developed by the muscle under "standard" conditions, without over-stimulating and potentially damaging the tissue.In order to determine the maximum tension, you should:

Multiple ChoiceA muscle is contracting with minimal tension.A muscle is stretched nearly to its limit.A muscle starts to relax after strenuous exercise.

Appreciate the role of sliding-filament mechanism of contraction and the importance of muscle structure