Post on 30-Dec-2015
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Staple Tattoo article and keep Staple Tattoo article and keep itit
1. Do you know anyone with a tattoo?1. Do you know anyone with a tattoo?
2. Do you want a tattoo? If so of what? 2. Do you want a tattoo? If so of what?
3. Do you know what safety procedures 3. Do you know what safety procedures need to be followed to ensure a safe need to be followed to ensure a safe tattoo?tattoo?
Skin & Body Skin & Body MembranesMembranes
Chapter 4aChapter 4a
Body MembranesBody Membranes
What is a What is a membranemembrane??
– Thin, pliable layer of tissueThin, pliable layer of tissue
Skin and Body MembranesSkin and Body Membranes
Slide 4.1Slide 4.1Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Function of body membranes Line or cover body surfaces
Protect body surfaces
Lubricate body surfaces
Classification of Body MembranesClassification of Body Membranes
Slide 4.2Slide 4.2Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Epithelial membranes
Cutaneous membrane
Mucous membrane
Serous membrane
Connective tissue membranes
Epithelial MembranesEpithelial Membranes
Slide 4.3Slide 4.3Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Cutaneous membrane = skin A dry membrane
Outermost protective boundary
Two layers
Superficial epidermis: Keratinized stratified squamous epithelium
Underlying dermis: Mostly dense connective tissue Figure 4.1a
Epithelial MembranesEpithelial Membranes Mucous Membranes
Two Layers
Surface epithelium
Underlying loose connective tissue (lamina propria)
Lines all body cavities that open to the exterior body surface
Often adapted for absorption or secretion
Figure 4.1b
Epithelial MembranesEpithelial Membranes
Slide 4.5Slide 4.5
Serous Membranes
Two Layers
Surface simple squamous epithelium
Underlying areolar connective tissue
Lines open body cavities that are closed to the exterior of the body
Serous layers separated by serous fluid
Serous MembranesSerous Membranes
Slide 4.6Slide 4.6Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Specific serous membranes Peritoneum
Abdominal cavity
Pleura Around the
lungs
Pericardium Around the
heart
Figure 4.1d
Connective Tissue MembraneConnective Tissue Membrane
Slide 4.7Slide 4.7Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Synovial membrane
Connective tissue only
Lines fibrous capsules surrounding joints
Figure 4.2
Quick QuizQuick Quiz
What are the three major What are the three major functions of body membranes?functions of body membranes?
Where do you find Serous Where do you find Serous Membranes?Membranes?
What type of membrane is a What type of membrane is a Synovial Membrane?Synovial Membrane?
Give a specific example of where Give a specific example of where you might find a mucous you might find a mucous membrane in the body.membrane in the body.
Integumentary SystemIntegumentary System
What do you think Integumentary What do you think Integumentary means?means?
““integument” means coveringintegument” means covering
Integumentary SystemIntegumentary System
Slide 4.8Slide 4.8Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Skin (cutaneous membrane)
Skin derivatives
Sweat glands
Oil glands
Hairs
Nails
Skin FunctionsSkin Functions
Slide Slide 4.9a4.9a
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Protects deeper tissues from:
Mechanical damage
Chemical damage
Bacterial damage
Thermal damage
Ultraviolet radiation
Desiccation (Drying)
Skin Functions, con’tSkin Functions, con’t
Slide Slide 4.9b4.9b
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings
Aids in heat regulation
Aids in excretion of urea and uric acid
Synthesizes vitamin D
Next time…Next time…
Detailed structure of the skinDetailed structure of the skin Skin derivativesSkin derivatives
Quick QuizQuick Quiz
What is the membrane name for What is the membrane name for skin?skin?
Give at least three functions of Give at least three functions of the skinthe skin