Membranes Flashcards
What is the role of all membranes?
Forms a barrier
What are all membranes composed of?
2
Epithelium
Connective tissue
How many types of membranes are there?
Four types
Name the four types of membranes.
Mucous
Serous
Cutaneous
Synovial
Describe mucous membranes.
Lines tubes in the body
Give one place in the body where mucous membranes are present.
Gut
Describe serous membranes
Line body cavities and secretes fluid
Give one place in the body where serous membranes are present.
Pleural cavity membranes
Give an example of a cutaneous membrane.
Skin
Give an example of a synovial membrane.
Outer area of a joint
What is another name for mucous membranes?
Mucosae
Name four places where mucous membranes are present.
Digestive
Respiratory
Urinary
Reproductive tracts
What type of epithelial cells make up mucous membranes?
Usually simple
Describe the surface cells of mucous membranes.
Surfaces must be moist
Why must the surface cells of mucous membranes be moist?
To reduce friction
How are the surface cells of mucous membranes kept moist?
3
Mucous produced by goblet cells
Mucous produced by gland secretions
By fluids
What does moisture allow for in mucous membranes?
It facilitates absorption and excretion
What type of connective tissues are present in mucous membranes?
areolar loose connective tissue
Write a note on serous membranes.
Line cavities not open to the outside (pleural/pericardial)
Are thin but strong
Have fluid transudate to reduce friction
What type of epithelial is found in serous membranes?
Mesothelium - special name for epithelium lining body cavities
What type of connective tissue is found in serous membranes?
Areolar tissue
What is present in serous tissue that reduces friction?
Fluid transudate
What is the pleural cavity?
The cavity around the lungs
What is the pericardial cavity?
The cavity around the heart
What is the peritoneal cavity?
Around some organs of the abdomen
Describe the characteristics of cutaneous membranes.
3
Thick
Relatively waterproof
Dry
What type of connective tissues are found in cutaneous membranes?
(2)
Loose areolar
Dense irregular CT proper
What is produced by synovial membranes?
Synovial fluid
What is the role of synovial membranes?
Protect the ends of bones
What type of epithelium is present in synovial membranes?
They lack a true epithelium
What are fasciae?
2
The body’s framework of connective tissue
Layers and wrappings that support or surround organs
How many types of fasciae are there?
Three
What are the three types of fasciae?
Superficial fascia
Deep fascia
Subserous fascia
