Flashcards in Membranes and Epithelial Membranes Deck (21)
What are the three epithelial membranes associated with the human body?
1. cutaneous; 2. mucous; 3. serous
Of the three epithelial membranes which are dry and which are wet?
Cutaneous is a dry membrane and is the skin. Mucous and serous are wet membranes.
What are membranes?
Flat sheets of tissue that cover or line a part of the body
What does an epithelial membrane consist of?
An epithelial tissue bound to an underlying connective tissue layer. In other words the epithelial membrane is the combination of the epithelial tissue and underlying connective tissue.
What is the cutaneous membrane?
Also known as skin, dry membrane, covers the external surface of the body.
Describe the epidermis and dermis of the skin?
The epidermis is keratinized stratified squamous epithelium. The dermis is loose (areolar) connective tissue and dense irregular connective tissue.
Generally what kind of body cavities do mucous membranes line?
Those that open directly to the exterior.
What kind of exocrine glands are usually associated with mucous membranes?
What kind of loose connective tissue is always associated with mucous membranes?
What is another name for serous membranes?
What body cavities do serous membranes generally line?
Body cavities that do not open directly to the exterior and organs that lie within that cavity.
Describe the two tissues associated with serous membranes?
Mesothelium (simple squamous epithelium) and underlying loose (areolar) connective tissue.
Is the overall serous membrane relatively tick or thin?
Organs within the ventral body cavity are called what?
What are the two names for serous membranes based on what they line?
Parietal and visceral
Define a parietal layer.
Serous membrane that lines the walls of the cavity
Define visceral layer.
Serous membrane that adheres to the surface of the organ
What is located between the parietal and visceral layers to reduce friction when the viscera move?
A thin layer of serous fluid
What does parietal pleura and visceral pleura line?
The pleural cavity and the lung's external surface
What does parietal pericardium and visceral pericardium line?
The lining of the pericardial cavity and the heart's external surface