6 Serous Membranes

Question 1

What are serous membranes?

Answer 1

Thin two-part membranes which line certain closed cavities and envelop the viscera
They line:
The peritoneum (envelopes the abdominal organs)
The pleural sacs (envelop the lungs)
The pericardial sac (envelops the heart)

Secretes lubricating fluid to promote friction free movement of surrounding structutres

Question 2

Serous membrane structure

Answer 2

Simple squamous epithelium that secrete the watery lubricant
Thin layer of connective tissue that attaches the epithelium to adjacent tissues
Inner layer is the visceral
Outer layer is the parietal