Skin Flashcards
What are the functions of body membrane?
Cover surface, line body cavity and form protective sheet
The first barrier to keep good things like water in, and bad things like harmful bacteria out
Skin
Two major groups of body membane
Epithelial Membrane
Connective Tissue membrane
Types of epithelial membrane
Cutaneous, Mucous and Serous Membrane
Type of Connective Tissue Membrane
Synovial Membrane
It is an outer covering that we rely on protection
skin or cutaneous membrane
The body membranes are classified accrdg to ______?
Tissue make up
It lines all body cavities that open to the exterior
Mucous membrane
What are the parts of integument
Skin, hair, fingernails, oil and sweat glands, body membranes
Functions of the skin
Protect the body, regulate body temp., and excrete wastes via sweat
Generally called the skin
Cutaneous membrane
Another name for epithelial membrane
Covering membrane and/or lining membrane
What are th 2 layers of cutaneous membrane
Superficial epidermis and underlying dermis
Epithelium composition of epidermis
Stratified squamous epithelium
Composition of dermis
Dense (fibrous) connective tissue
Characteristics of cutaneous membrane
Exposed to air and dry mucous
Another word for mucous membrane
Mucosa
Where does mucous’ membrane rests
Loose connective tissue
What is its specific name?
Lamina propria
Hollow oragns
Respiratory, Digestive, Urinary, Reproductive Organ
Refers only to the location of epithelial membrane but not the cellular make up
Mucosa
Mucous membranes are either what type of epithelium
Stratified squamous epithelium or simple columnar epithelium
Where is mucous membrane located?
Respiratory, digestive, urinary and reproductive
Characteristic of mucuos membrane that continually bathed in secretions
Moist membrane
Functions of the epithelium of mucosae
Absorption or secretion
It line body cavities that are closed to the exterior
Serous membrane
The scanty amount of thin, clear fluid that separate serous membrane
Serous fluid
What layer composed serosa
Simple squamous epithelium
Serous membrane rests on what tissue
Areolar connective tissue
It means “wall”
Parie
Serous membrane occur in pairs, what are they?
Parietal layer and visceral layer
Lines the specific portion of the wall of the ventral cavity in the serous membrane
Parietal layer
Covers the outside of the organs in ventral cavity
Visceral layer
The serosa lining the abdominal cavity
Peritoneum
The membrane surrounding the lungs
Pleurae
The membrane surrounding the heart
Pericardia
It contains no epithelial cells at all
Synovial membrane
Synovial membrane are composed of what connective tissue?
Loose areolar connective
It lines the fibrous capsule surrounding joints providing a smooth surface and lubricating fluid.
Synovial fluid
Line small sacs of connectoive tissue
Bursae
Tubeliks
Tendon sheaths
Integument protects the entire body from…
Chemical damage, mechanical, thermal, ultraviolet radiation, desiccation, and microbes
Produced by skin to protect against bacterial invasion
Acid mantle
Substances we lost when we sweat
Urea, salts, and water
How to protect deeper tissues from MECHANICAL DAMAGE
Keratin (toughen cells)
Fate cells (cushion blows)
Pressure and pain receptors (signal and alert nervous system)
How to protect against CHEMICAL DAMAGE
Impermeable keratinized cells
Pain receptors
How to protect against MICROBE DAMAGE
Unbroken surface and acid mantle
Phagocytes ingest foreign substances and pathogens
Protect against ULTRAVIOLET RADIATION
Melanin by melanocytes protect from UV damage
Protect form THERMAL DAMAGE
Heat/cold/pain receptors
Protect from DESICCATION (drying out)
Water-resistant glycolipid and keratin
A burn or friction may cause these to separate, allowing interstitial fluid to accumulate in the cavity between layers
Blisters
Fairly tear resistant
Dermis
It achored the skin to the underlying organs and provide a site for protein storage
Subcutaneous tissue or hypodermis
Subcutaneous tissue serves as a _________?
Shock absorber
It is responsible for the curves that more a part of woman’s anatomy than a man’s.
Subcutaneous tissue
Most cells in the epidermis are ________ that produces _________
keratinocytes ; keratin
Fibrous protein that makes the epidermis a tough protective layer in a process called
Keratinization
5 layers of epidermis
Stratum basale, spinosum, granulosum, lusidum and corneum
The deepest cell layer of epidermis that lies closest to the dermis and is connected to it along a wavy border that resemble coruggated cardboard
Stratum basale
