How Does Contraction of Smooth Muscle Differ from That of Skeletal

question 219

Essay

How does contraction of smooth muscle differ from that of skeletal muscle? Include the following in your answer: Ca²⁺ ions, troponin, tropomyosin, calmodulin, myosin-binding sites, light-chain region, actin, myosin, and cross bridge cycling.

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Definitions:

Thalidomide

A sedative used in the 1960s that has been linked to birth defects, especially deformed or absent limbs.

Insomnia

A sleep disorder characterized by difficulty falling and/or staying asleep.

Dizygotic Twins

Also known as fraternal twins, these siblings result from the fertilization of two separate eggs by two separate sperm and share about 50% of their DNA.

Genes

Structures made of DNA that carry the genetic information necessary for the development and functioning of an organism.