What happens when ATP is depleted When ATP is depleted the rigor complex kicks

What happens when atp is depleted when atp is

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What happens when ATP is depleted? 5. A twitch lasts 10-100ms, where as a skeletal muscle AP only lasts 1-2ms allowing The AP has already gone up & down before any force of twitch has been generatedWhy is there a delay in force generation after the action potential in a skeletal muscle? How are prolonged (several seconds), stable tensions produced from nerves & muscles that use inherently all or none AP that last only a few ms? Why is a tetanus contraction generate 3-4 times the force of a twitch? 6. 2 signaling mechanisms that control tension produced from a muscle
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A single motor neuron can control multiple muscle fibers (cells)How is this controlled by the CNS? 7. Specializations of cardiac muscle Intercalated discs- mechanically connect adjacent cells Gap junctions- allow action potentials to move between adjacent cells Pacemaker cells- endogenously generate action potentials o Allow heart to beat on its own o Cycles of depolarizations about once per second Action potentials last 100-500 ms, thus preventing tetanus 8. In the right atria, there is a population of muscle cells that have a special grouping of channels that allow it to have pacemaker activity = SA Node Funny sodium channels are open; & closing K channels o Funny because they start to depolarize near resting membrane potential (-60 mV) o
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