1. Skin and Body Membranes

2. I. BODY MEMBRANES-- less complicated than organs
A. Mucous Membranes
1. *Produce what substance? Why?
2. *Where located?
Serous Membranes
2. *Substance produced?
3. *Where located?
4. Number of layers
I. BODY MEMBRANES-- less complicated than organs

3. II) INTEGUMENTARY SYSTEM
A. Functions: see Table 4.1
B. Structure & Major Layers:
*Epidermis define
*Dermis define
*Below Skin = Subcutaneous (Hypodermis) define

4. C. Epidermis– Sub-Layers
Figure 4.3

5. C. EPIDERMIS *Type of Tissue: 2. Sub-Layers a. Stratum Basale
("germinativum)
i) *Location & # layers
ii) Cells it Contains:
Keratinocytes & Function
Melanocytes & Function
iii) Function
b) Stratum Spinosum
EPIDERMIS
Stratum Basale

6. c) Stratum Granulosum *Has what structures? Condition of cells?
d) Stratum Lucidum
Cells Dead
*Location: only where?
e) Stratum Corneum-
*Location?
*# layers:
Condition of Cells?
Function
Stratum Granulosum
Stratum Spinosum

7. e) Stratum Corneum- *Location? *# layers: Condition of Cells?
Epidermis …
e) Stratum Corneum-
*Location?
*# layers:
Condition of Cells?
Cells are filled with:
*Function
Stratum Corneum

8. D. DERMIS– Bottom Layer 1. *Major Type Tissue Fibers:
Many Blood vessels
Two sub-layers
a) Papillary layer
Location:
Structures present: pain
and touch receptors
b) Reticular layer
Dense Connective Tissue
Blood vessels
Has: Sweat & Oil Glands
Deep Pressure Receptors
DERMIS

9. E. SUBCUTANEOUS TISSUE– HYPODERMIS
Function:
Tissue:

10. G. Skin Homeostatic Imbalances …
1. Burns
b) Types– Severity of Burns
i) First-degree burns
*layers:
Condition of Skin
ii) Second-degree burns
*layers

11. iii) Third-degree burns
*layers
Characteristics
c. Critical Burns
i) Second-Degree
Amount: over 25% body
ii) Third-Degree
Amount: over 10% body
AND/OR: includes: Face, Hands, and Feet
d. Dangers of Critical Burns:
dehydration
electrolyte imbalance
shock

12. 2. Skin Cancer Basal Cell Carcinoma *Malignancy *Cause: Skin layer
Characteristics
ii) Squamous Cell Carcinoma

13. iii) Malignant melanoma
Cure Rate
Cell layer and cells
*Cause
Metastasizes
*Characteristic– color
Detection: ABCDE Rule
A = Asymmetry
B = Border
C = Color
D = Diameter > 6 mm
E = Elevation

14. END