1. CH3 Cells and Tissues … Power Point Part B

2. Assignment: Prior to class, fill in the information for the items that have a * in your own words. Be prepared to turn your answers in if requested.

3. Hierarchy of Information
ATOMS  ELEMENTS  MOLECULES  BIOCHEMICALS  CELLS  TISSUES  ORGANS  ORGAN SYSTEMS  ORGANISM

4. VI. Body Tissues– 4 types A. Epithelial *Tissues = 1. Locations
Coverings/Linings
Boundaries
Skin & Glands
2. *Characteristics
*Cell Density:
*Surfaces: Apical & Basal
Basement Membrane
*Avascular:
*Regeneration:

5. a) Simple Squamous Epithelium Forms membranes Function *Examples:
3. Classification
a. *Cell Layers
*Simple:
*Stratified:
b. Cell Shapes
*Squamous
*Cuboidal
*Columnar
4. Simple Epithelia
a) Simple Squamous Epithelium
Forms membranes
Function
*Examples:
Figure 3.17a

6. b) Simple Cuboidal Epithelium Functions: *Examples:
Simple Epithelia …
b) Simple Cuboidal Epithelium
Functions:
*Examples:
c) Simple Columnar Epithelium
Goblet Cells
*Examples

7. d) Pseudostratified Columnar Epithelium *Layers: ______________ why?
Simple Epithelia …
d) Pseudostratified Columnar Epithelium
*Layers: ______________ why?
*w/ Cilia: name?
Goblet Cells make mucus
Function: cilia & mucus do what
*Examples

8. 5. Stratified Epithelia
a) Stratified squamous
Cell Shapes:
*Function:
*Examples
6. Glandular Epithelium
a) *Gland =
b) Types
Exocrine
Endocrine

9. VI. Body Tissues … B. Connective Tissue
1. Characteristics
a. Cell Density
b. *Blood Supply
c. *Locations & Abundance:
d. *Functions
e. Extracellular Matrix
i) *define:
ii) Ground Substance
iii) Protein Fibers
Collagen (white) fibers
Elastic (yellow) fibers

10. 2. TYPES
a. Bone (osseous tissue)
i) Composed of
Bone cells
- lacunae
Hard matrix
Minerals:
Fibers:
ii) *Function:

11. b. Cartilage
i) *compared to Bone, matrix is?
ii) Cells in lacuna
iii) *Locations/Examples
iv) *Types: list
c. Dense Connective Tissue (Fibrous)
i) *Matrix: primarily what?
ii) Fibroblasts:

12. d. Loose Connective Tissue - * compared to Dense C.T.
i) Areolar
Description:
Functions
Location
Fibers
Edema
ii) Adipose
*Mostly what?
*Functions
*Locations/Examples

13. e. Blood (vascular tissue)
*Matrix: liquid, called what?
Fibers:
*Functions:

14. C. Muscle Tissue Cells shape: Functions: Types 1. Skeletal muscle
*Organs: in what organ?
*control: controlled consciously?
*Function:
Striated

15. 2. Cardiac muscle
*Conscious control: ?
*Location:
*Function:
Intercalated Discs:
*Striated: is it?
3. Smooth muscle
*Striations: is it?
*Cell Shape:
*Locations:
Function:
Conscious control:

16. D. Nervous Tissue 1. Neurons a. *Function:
b. Functional Characteristics
Irritability
Conductivity
c. Cell Structure
Cell Body:
*Processes:
2. *Supporting Cells functions
3. *Make up what organs

17. VII. Events in Tissue Repair
Two Methods: Regeneration and Fibrosis
Regeneration =
STEPS
1. Inflammation
Capillaries permeable
Blood clot forms
Scab forms
2. Granulation Tissue Forms =
New capillaries grow in
Phagocytes
Connective Tissue Cells:
Clot dissolves via phagocytes

18. B. Fibrosis 3. Surface Epithelium Regenerates
Regeneration of surface epithelium
Scab detaches
5. There May Be Some Scar Tissue Beneath
4. Tissues: epithelial, connective except cartilage
B. Fibrosis =
1. Depends on:
2. Scar Tissue Repair by dense connective tissue
3. Tissues With No or Poor Regeneration
Cardiac muscle: none
Nervous: some mitosis
Skeletal muscle: some mitosis

19. VIII. Health Concerns– Cancer (crab) - How Common: approx
VIII. Health Concerns– Cancer (crab) - How Common: approx. ½ population develops; 1/5 die
A. Carcinogens & Mutations
Oncogenes & Tumor Suppressor Genes
B. Increased Cell Division
C. Tumor (Neoplasm) Develops
Benign OR Malignant
D. Malignancy Develops
1. Last mutation
2. Non-encapsulated
3. Agressively Grow
4. Angiogenesis
5. Metasticize

20. E. Common Cancers: Skin, Breast, Colon, Lung, Prostate Gland (Stomach, Lymphoid)
F. Treatments
Traditional: Surgery, Anticancer Drugs, Radiation
Newer Methods
Precise Delivery of Radiation & Drugs
Activate Immune System
Stop Angiogenesis
Use of Viruses to deliver a treatment
Cancer Vaccines in research
END OF PPT