I know you are just dying to know how a skeletal muscle contracts. So here goes…
First, an action potential (AP) reaches the axon terminal in a nerve. Then the voltage gated calcium channels open and there is an influx of calcium. The calcium causes Acetylcholine (ACh) to release into the synaptic cleft. Acetylcholine crosses the […]
There are three types of muscle tissue; skeletal, cardiac and smooth. These tissues have six characteristics:
Excitability-the ability to respond to stimuli and produce electrical signals.
Contractility-the ability to shorten and generate force once excited.
Extensibility-the ability to stretch without damaging the tissue.
Elasticity-the ability to return to normal length after being extended.
Thermal-the ability to produce heat.
I will mostly […]
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