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