1. TISSUES NOTES PART 1

2. NOTES - TISSUES The human body is organized in the following manner: ATOMS MOLECULES CELLS TISSUES ORGANS ORGAN SYSTEMS ORGANISM (human)

4. TISSUE (definition) similar cells with the same function 4 types of human tissue: I. EPITHELIAL TISSUE II. CONNECTIVE TISSUE III. NERVOUS TISSUE IV. MUSCLE TISSUE

5. I. EPITHELIAL TISSUE Function: cover or lining of organs

6. 1. Stratified Squamous Epithelium Function: protection from injury cells on the bottom are round – they become flat near the top Location: skin 3 main types of Epithelial Tissue:

7. 2. Simple Columnar Epithelium long rectangles packed close together Function: to secrete chemicals & absorb nutrients Location: lining of digestive tract (stomach, intestines)

8. lining of the stomach (columnar epithelium)

9. 3. Ciliated Epithelium (aka: psuedostratified) similar to columnar epithelium, but with CILIA Function: movement of mucus or egg by action of cilia Location: trachea, oviducts (fallopian tubes) * there are other types of epithelium as well

10. Tracheal epithelium (ciliated)