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Related Concept Videos

Tissues01:18

Tissues

Cells with similar structure and function are grouped into tissues. A group of tissues with a specialized function is called an organ. There are four main types of tissue in vertebrates: epithelial, connective, muscle, and nervous.
Tissues01:25

Tissues

Tissues are a group of cells that share a common embryonic origin. Microscopic observation reveals that the cells in a tissue share morphological features and are arranged in an orderly pattern to perform specific functions. From an evolutionary perspective, tissues appear in more complex organisms. Although there are many types of cells in the human body, they are organized into four broad categories of tissues: epithelial, connective, muscle, and nervous. Each of these categories is...
Introduction to Connective Tissues01:11

Introduction to Connective Tissues

Connective tissues are one of the four main tissue types in humans that are extensively present in the body. They are characterized by cells embedded in an extracellular matrix (ECM) composed of a ground substance and three main types of protein fibers— collagen, elastic, and reticular fibers. The ground substance of connective tissues can range from a watery and jelly-like consistency to mineralized and hard. The wide variety of cells in the connective tissues include fibroblasts, osteocytes,...
Epithelial Tissues and Their Functions01:23

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.
Epithelial tissues provide the body's first line of protection from physical, chemical, and...
Embryonic Connective Tissues01:20

Embryonic Connective Tissues

During early development, the embryo forms two types of connective tissues— the mesenchyme and mucoid connective tissue.
The mesenchyme is the first connective tissue that emerges in the developing embryo. It consists of loosely arranged multipotent mesenchymal cells and reticular fibers in the extracellular matrix. This loose arrangement allows easy migration of cells, which is essential for germ layer positioning, patterning, and organ morphogenesis during embryonic development. Mesenchyme is...
Plant Tissues01:18

Plant Tissues

Plants are multicellular eukaryotes with tissue systems made of various cell types that carry out specific functions. Different tissues work together to perform a unique function and form an organ. Organs working together form organ systems. Vascular plants have two distinct organ systems: a shoot system and a root system. The shoot system consists of two portions: the vegetative (non-reproductive) parts of the plant, such as the leaves and the stems, and the reproductive parts of the plant,...

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Related Experiment Video

Updated: May 16, 2026

Core/shell Printing Scaffolds For Tissue Engineering Of Tubular Structures
05:52

Core/shell Printing Scaffolds For Tissue Engineering Of Tubular Structures

Published on: September 27, 2019

Engineering complex tissues.

Anthony Atala1, F Kurtis Kasper, Antonios G Mikos

  • 1Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston Salem, NC 27157, USA.

Science Translational Medicine
|November 16, 2012
PubMed
Summary
This summary is machine-generated.

Tissue engineering offers innovative solutions for regenerating tissues and organs. This review explores advancements in biomaterials and techniques for creating complex engineered tissues for clinical applications.

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Engineering Three-dimensional Epithelial Tissues Embedded within Extracellular Matrix

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Experimental Approaches to Tissue Engineering
16:41

Experimental Approaches to Tissue Engineering

Published on: August 30, 2007

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Last Updated: May 16, 2026

Core/shell Printing Scaffolds For Tissue Engineering Of Tubular Structures
05:52

Core/shell Printing Scaffolds For Tissue Engineering Of Tubular Structures

Published on: September 27, 2019

Engineering Three-dimensional Epithelial Tissues Embedded within Extracellular Matrix
08:49

Engineering Three-dimensional Epithelial Tissues Embedded within Extracellular Matrix

Published on: July 10, 2016

Experimental Approaches to Tissue Engineering
16:41

Experimental Approaches to Tissue Engineering

Published on: August 30, 2007

Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Materials Science

Background:

  • Tissue engineering addresses the clinical need for regenerating functional living tissues and organs.
  • The complexity of native tissues and disease-related factors pose challenges to traditional engineering methods.
  • Diverse tissue types, from flat skin to complex solid organs like the liver, present unique engineering hurdles.

Purpose of the Study:

  • To review recent advancements in tissue engineering technologies.
  • To highlight strategies for regenerating complex tissues and organs.
  • To discuss the clinical impact of innovative engineered tissues.

Main Methods:

  • Review of current literature on tissue engineering.
  • Analysis of biomaterial, cellular, and structural approaches.
  • Examination of case studies for various tissue types (skin, urethra, vagina, liver).

Main Results:

  • Significant progress has been made in developing technologies for complex tissue regeneration.
  • Engineered tissues are increasingly viable for diverse clinical applications.
  • The review synthesizes key innovations enabling the creation of functional engineered tissues.

Conclusions:

  • Tissue engineering is advancing rapidly, offering promising solutions for organ and tissue repair.
  • Innovative approaches are overcoming challenges in regenerating complex anatomical structures.
  • The clinical translation of engineered tissues holds significant potential to improve patient outcomes.