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A time-space diagram of a peristaltic wave after a water swallow. High-pressure values are red, zero pressure is blue-green. The ridge in the upper pa
A time-space diagram of a peristaltic wave after a water swallow. High-pressure values are red, zero pressure is blue-green. The ridge in the upper part of the picture is the high pressure of the upper esophageal sphincter which only opens for a short time to let water pass.
A simplified image showing Earthworm movement via peristalsis
A simplified image showing Earthworm movement via peristalsis
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Smooth muscle shown in the tunica media in the walls of arteries and veins
Smooth muscle shown in the tunica media in the walls of arteries and veins
The dense bodies and intermediate filaments are networked through the sarcoplasm, which cause the muscle fiber to contract.
The dense bodies and intermediate filaments are networked through the sarcoplasm, which cause the muscle fiber to contract.
A series of axon-like swellings, called varicosities from autonomic neurons, loosely form motor units through the smooth muscle.
A series of axon-like swellings, called varicosities from autonomic neurons, loosely form motor units through the smooth muscle.