Engineering tissues and organs

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Updated: Oct 17, 2026

Tissue Engineering by Intrinsic Vascularization in an In Vivo Tissue Engineering Chamber
09:55

Tissue Engineering by Intrinsic Vascularization in an In Vivo Tissue Engineering Chamber

Published on: May 30, 2016

A Atala1

  • 1Department of Urology, Children's Hospital, Boston, Massachusetts, USA. Atala@a1.tch.harvard.edu

Current Opinion in Urology
|February 11, 2000
PubMed

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It is convenient to consider the body's structures in terms of fundamental levels of organization that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, and organisms.
To study the chemical level of organization, scientists consider the simplest building blocks of matter: subatomic particles, atoms, and molecules. All matter in the universe is composed of one or more unique pure substances called elements, familiar examples of...
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Epithelial Tissues and Their Functions

Epithelial tissues are large sheets of cells covering all of the surfaces of the body. These surfaces can be internal or external, for example, skin, airways, the digestive tract, the urinary system, and the reproductive system. Hollow organs and body cavities that do not connect to the body's exterior, including blood vessels and serous membranes, are lined by epithelial tissue known as the endothelium.
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The connective tissue membrane is formed solely from connective tissue. These membranes encapsulate organs, such as the kidneys, and line our movable joints. A synovial membrane is...