1. Histology

2. Groups of closely related associated cells that are similar in structure and perform a common function are tissue.
Cytology – the study of cells
Histology – the study of tissue

3. Components of Tissues Cells Extracellular matrix
may be fluid or protein fibers
Matrix
Cell

4. 4 Basic Types of Tissue in Humans
Epithelial tissue
Connective tissue
3. Muscle tissue
4. Nervous tissue

5. Muscle Tissue

6. Characteristics
highly cellular
vascular
contractibility

7. 3 Types of Muscle Tissue:
3. Smooth
2. Cardiac
1. Skeletal

8. 1. Skeletal Muscle Tissue
Movement
Voluntary
Multinucleated
Striated – banded

9. 2. Cardiac Muscle Tissue
Heart only
Pumps
Involuntary

10. 2. Cardiac Muscle Tissue Striated
Intercalated disks – connects cell to cell

11. 3. Smooth Muscle Tissue
lacks striations
involuntary

12. 3. Smooth Muscle Tissue walls of hollow organs
ex: - GI tract - urinary tracts
- uterus arteries