Stem cells & Animal Tissues Flashcards
Do all human cells look the same
No, each cell has different function in the body
Stem cells
undifferentiated biological cells that can differentiate into different types of cells. Not specialized yet.
3 different types of stem cells
- embryonic
- Adult
- Induced pluripotent stem cells (iPS)
Embryonic?
Pluripotent, Can become ALL types of cells, obtained from blastocyst (early stage embryo)
Adult stem cells
Multipotent, can become anything of the group of cells in its associated cell line
Induced pluripotent stem cells
Adult stem cells that were induced (programmed) to become pluripotent, capable of becoming any type of cell. Basically a embryonic but programmed to be like that
Hiearchy
Looking at animals in its simplest form to its most complex form
What are animal bodies organized in?
Hiearchy of increasing complexity
Cells
Speacilized and branch to connect to other LIKE cells
Tissues
Groups of specialized cells that have the same structure and function (hockey team)
Organs
A structure composed of different tissues that works together to perform A certain function [aphs]
Organ systems
Organs work with other organs to form systems that maintain vital bodily function,halton
4 tissues animal?
1.epithelial tissue
2.Nervous tissue
3.connective tissue
4.muscle tissue
Epithelial tissue function?
Prevents damage, heat loss, dehydration, infection. Protects body cavaties and organs. Eg, skin, air sacs in lungs, lining of digestive system
Epithelial tissue structure?
Sheets of tightly packed cells, covers body surface, lines and the body’s internal organs