Classifications of Body Membranes
Connective tissue membranes
– synovial
Epithelial membranes
– mucous or mucosa
– serous or serosa
– cutaneous
Synovial Membranes (Connective)
Some joints are
surrounded by a
membrane
(synovium) that
produces a thick,
synovial fluid. This
fluid nourish the
cartilage and keeps
it slippery.
Knee Joint
Mucosa Membranes (Epithelial)
Mucus-secreting membrane that lines all body
cavities or passages that come in contact with
the outside of the body. Membranes are
involved in absorption and secretion.
Lichen planus
(Fungus)
Serous Membranes (Epithelial)
Serous membranes line
body cavities that do not
open directly to the
outside, and they cover
the organs located in
those cavities. Fluid
lubricates the
membrane and reduces
friction and abrasion
when organs move
against each other.
Canine
Reproductive
Organs
Serous Membranes cont….
Serous membranes
occur in pairs
separated by serous
fluid
Specific serous
membranes
– Peritoneum
Abdominal cavity
– Pleura
Around the lungs
– Pericardium
Around the heart
Cutaneous Membranes (Epithelial)
Cutaneous membranes
of the skin cover the
surface of the body.
They consist of stratified
squamous epithelium
and the underlying
connective tissues.
Cutaneous membranes
are thick, relatively
waterproof, and dry.
Skin Cancer