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Doug and Sue Are Very Excited When Their Son Learns

question 82

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Doug and Sue are very excited when their son learns to cross the monkey bars. They encourage him to explore his world and try things out. Doug and Sue's son is most likely mastering:


Definitions:

Intercalated Disc

Unique links among heart muscle cells that enable the heart to contract in unison.

Gap Junction

Specialized intercellular connections between a multitude of animal cell-types that directly connect the cytoplasm of two cells, allowing various molecules, ions, and electrical impulses to directly pass through a regulated gate between cells.

Stratified Squamous Epithelium

A type of protective tissue consisting of layers of flat cells found in areas such as the skin, mouth, and esophagus.

Simple Columnar Epithelium

A type of epithelium consisting of a single layer of tall, closely packed cells, which line organs such as the stomach and intestines.

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