1. Tissues of the Human Body
Anatomy & Physiology
Ms. Cohen

2. Four main kinds of tissues
Epithelial - covers the body and many of its parts, lines some parts of body, closely packed, continuous sheets
Connective - most abundant and widely distributed, most variability, found in skin, membranes, muscle, bones, nerves, internal organs
Muscle - movement specialists, higher degree of contractibility than any other tissue
Nervous - rapid communication b/t structures and control of body functions.

3. Epithelial Subdivision
If categorized by Shape of Cells
Squamous (flat and scalelike)
Cuboidal (cube shaped)
Columnar (higher than they are wide
Transitional (varying shapes that can stretch
If categorized by Arrangement of Cells
Simple (a single layer of cells of the same shape)
Stratified (many layers of cells: named for the shape of cells in the outer layer)

4. Simple Squamous You can see here how The cells are very flat
And are often found
Lining body cavities.
Single layer of very thin and irregularly shaped cells.
Do you think substances can pass through easily?
Why?

5. Stratified Squamous
Why do you think this tissue type might be perfect for protection?

6. Simple Columnar What do you think these goblet cells might contain?
Can be found lining inner surface of stomach, intestines and areas of respiratory and reproductive tracts.

7. Stratified Transitional
Traditionally found in body areas subjected to stress such as wall of urinary bladder. What stress do you think?

8. Pseudostratified What purpose will these serve?
Single layer of tall cells that give appearance of more than one layer. Attach to basement membrane.

9. Simple Cuboidal
These cells form tubules (glands) for secretory activity. Two types:
Exocrine - release through a duct
Endocrine - blood stream

10. Connective Tissue
Areolar-most widely distributed. Glue for internal organs.
Adipose or fat - stores lipids
Fibrous - bundles of strong, collagen fibers arranged in rows (tendons)
Bone-hard and calcified matrix
Cartilage-firm plastic type matrix
Blood-transportational and protective for body
Hemopoietic - blood like tissue found in red marrow & in spleen, tonsils, lymph nodes. Forms blood cells and lymphatic system cells.

11. Which type is which?
Areolar (between other tissues and organs), cartilage (ear, vertebrae discs, nose, trachea rings, bronchi), blood
Bone, adipose, dense fibrous (tendons, ligaments, fascia, scar tissue)

12. Muscle Tissue Walls of heart that produce heartbeat.
Voluntary movement (attach to bones, eyeball muscles)
Found in organs, blood vessels, hollow organs (intestines, GI tract, bronchioles, intrinsic eyes-iris, arrectors in hair)

13. Nervous
Rapid communication between body structures and control of body functions.
Supporting cells