Levels of Organization Cells Levels of Organization Cells: microscopic units of living matter

Levels of Organization


• Cells


• Cells: microscopic units of living matter


• Cells: microscopic units of living matter– Each individual begins as a

single cell that is capable of mitosis and differentiation ..\Desktop\overview.mov

–As a consequence of mitosis and differentiation, four cell groups develop

1. Epithelial cells

1. Epithelial cells: examples

1. Epithelial cells: examples

Liver Cell (TEM 9,400x)

2. Connective tissue cells

2. Connective tissue cells: examples



3. Muscle cells

3. Muscle cells: examples

4. Nerve and glial cells

4. Nerve and glial cells: examples

4. Nerve and glial cells: examples

Levels of Organization, cont’d.

• Cells


• Cells

• Tissues


• Cells

• Tissues – Epithelial


• Cells



• Cells


– Connective


• Cells


– Connective

–


• Cells


– Connective

– Muscle


• Cells


– Connective

– Muscle


• Cells


– Connective

– Muscle

– Nervous


• Cells


– Connective

– Muscle

– Nervous


• Cells


– Connective

– Muscle

– Nervous

• Organs C:\WIN95\Profiles\Carey000\My Documents\My Pictures\lung.mov


• Cells


– Connective

– Muscle

– Nervous

• Organs

• Organ Systems

Woodcut from De Humani Corporis Fabrica by

Andreas Vesalius, published in 1543.

http://www.neoucom.edu/library/Vesalius.htm

http://www.neoucom.edu/library/Vesalius.htm

http://www.neoucom.edu/library/Vesalius.htm#bio

http://www.neoucom.edu/library/Vesalius.htm#bio

http://mars.acnet.wnec.edu/~grempel/courses/wc2/lectures/scientificrev.html


• Cells


– Connective

– Muscle

– Nervous

• Organs

• Organ Systems

The Organism

Andreas Vesalius (1514 – 1564)