1. Tissue Structure and Function

2. Tissue
An aggregation of cells and cell products of similar structure and embryonic origin that perform a common function

3. The study of tissues, especially their structure and arrangement
Histology
The study of tissues, especially their structure and arrangement

4. Basic Tissue Types
Epithelial
Connective
Muscle
Nervous

6. An aggregation of tissues organized into a functional unit
Organ System
Organs working together as functional units

7. Epithelial Tissue Sheet-like layer of cells
Cover surfaces or line cavities
Often has glandular cells for fluid secretion
Endothelium
Epithelium that lines heart, blood vessels and lymphatic vessels

8. Epithelial Types Simple Epithelium
Simple squamous – inside blood vessels
Simple cuboidal – lines ducts, ex. Kidney tubules, mucous glands
Simple columnar – lining of small intestine
Pseudostratified Columnar – trachea, bronchi

9. Figure 09.9a

10. Figure 09.9b

12. Pseudostratified Columnar

13. Epithelial Types Stratified Epithelium Stratified squamous - skin
Transitional – urinary tract and bladder

15. Connective Tissue Tissue that connects Loose connective tissue
adipose (fat)
Dense connective tissue
cartilage
Bone
Vascular tissue
Erythrocytes: Red Blood Cells – carry oxygen
Leucocytes: White Blood Cells – part of the immune system
Platelets - clotting

16. Adipose

17. Figure 09.11c

18. Figure 09.11d

19. Erythrocytes:
Red Blood Cells

20. Leucocytes: White Blood Cells

21. Platelets

22. Muscle Tissue Types Smooth Muscle (=Involuntary Muscle)
Ex. Small intestine
Skeletal Muscel (=Voluntary Muscle)
Ex. Large muscles of body
Cardiac Muscle

23. Skeletal
Smooth
Cardiac

24. Nervous Tissue Includes Nerves, Spinal Cord, Brain
Cells are called neurons

25. Neuron