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ANATOMY - SKIN AND B
Classification of Body Membranes, The Integumentary System (Skin), Development A
Question | Answer |
---|---|
What are the functions of body membranes? | They cover surfaces, line body cavities, and form protective (and sometimes lubricating) sheets around organs. |
What are the two major groups of body membranes? | Epithelial membranes and Connective Tissue membranes. |
What do epithelial membranes consist of? | Cutaneous, mucous, and serous membranes. |
What do Connective Tissue membranes consist of ? | Connective tissue membranes are represented by the synovial membranes. |
What is another name for Epithelial membranes? | Covering and lining membranes. |
Why is it misleading and inaccurate to call the cutaneous, mucus, and serous membranes Epithelial membranes? | Although they all do contain an epithelial sheet, it is always combined with an underlying layer of connect tissue. Hence, these membranes are actually simple organs. |
What is cutaneous membrane? | The skin. |
What is the cutaneous membrane composed of? | Keratinizing stratified squamous epithelium. The underlying dermis is mostly dense (fibrous) connective tissue. |
What sets the cutaneous membrane apart from mucus and serous membran | It is exposed to air and is a dry membrane |
What is mucus membrane composed of? | Epithelium and Loose Connective Tissue called Lamina Propria. |
Where are mucus membrane located? | Mucus membranes line all body cavities that open to the exterior, such as those of the hollow organs of the respiratory, digestive, urinary, and reproductive tracts. |
What are the characteristics of mucus membrane? | All mucus membranes are wet, or moist. They are almost continuously bathed in secretions or, in the case of the urinary mucosae, urine. |