Lec 2 - Background- cells of the human body Fetus: Day7-14:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Background- cells of the human body Cells replicate Blastocyte: cells are no longer identical, final stage-ish Fetus: Day7-14: uterine implantation Day 14: three distinct layers begin to form (no more embryonic stem cells) Days 14-21: beginning of future nervous system Days 21-24: beginning of future face, neck, mouth, nose Weeks 3-8: beginning of organ formation Week8: FETUS In vitro fertilization: Eggs and sperm donated and fused to create fertilized eggs in a petri dish Fertilized eggs mature to blastocysts; some implanted into womb, others frozen Cells re-plated on a petri dish and grown in culture Special characteristics of ALL stem cells Self-renewal: ability to clone itself infinitely by cell division Asymmetric cell division: a stem cell divides into two daughter cells: one remains a stem cell, the other turns into a more specialized cell Relocation and differentiation: stem cells “migrate” to where they’re needed in the body in order to replace injured cells
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/26/2010 for the course ANTHRO 02303 taught by Professor Deacon during the Fall '09 term at University of California, Berkeley.

Page1 / 2

Lec 2 - Background- cells of the human body Fetus: Day7-14:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online