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Differentiation and the Fate of Cells

Topic

  • Cell Biology
  • Differentiation
  • Anatomy & Physiology
  • Reproduction & Development

Resource Type

  • Videos
  • Animations

Level

High School — AP/IBCollege

Duration

00:01:29
Saved By
16 Users
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Description

This animation describes the formation and fates of the three germ layers in a human embryo.

All cells in the human body originate from a group of embryonic stem cells called the inner cell mass (ICM), which is formed during an early stage of development called the blastocyst. As shown in the animation, the fates of these cells become more restricted and specialized as development progresses. In a later stage of development called the gastrula, the cells differentiate to form three germ layers: the ectoderm, the mesoderm, and the endoderm. Each layer gives rise to specific tissues with increasingly specialized cells.

This animation is a clip from a 2006 Holiday Lecture Series, Potent Biology: Stem Cells, Cloning, and Regeneration. Depending on students’ background, it may be helpful to pause the animation at various points to discuss different steps in the developmental process.

Key Terms

blastocyst, cell division, ectoderm, embryonic stem cell, endoderm, gastrulation, germ layer, inner cell mass (ICM), mesoderm

Terms of Use

Please see the Terms of Use for information on how this resource can be used.

Accessibility Level (WCAG compliance)

Video files meet criteria.

Version History

Date Published 02.05.06

Materials

Large (MOV) 5 MB
Large (WMV) 5 MB
Small (MOV) 2 MB
Small (WMV) 2 MB
Transcript (PDF) 12 KB

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