TISSUES NOTES PART 1
NOTES - TISSUES The human body is organized in the following manner: ATOMS MOLECULES CELLS TISSUES ORGANS ORGAN SYSTEMS ORGANISM (human)
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
I. EPITHELIAL TISSUE Function: cover or lining of organs
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:
2. Simple Columnar Epithelium long rectangles packed close together Function: to secrete chemicals & absorb nutrients Location: lining of digestive tract (stomach, intestines)
lining of the stomach (columnar epithelium)
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
Tracheal epithelium (ciliated)