body membranes

cutaneous membrane

only dry membrane and found externally, like the skin

mucous membrane

also known as mucousae, it lines body cavities with openings. like the moon cavities and the anal cavity.

serous membrane

also known as serosa, it lines body cavities w/o openings. like the abdominalpelvic cavity, thoracic cavity.

what makes the serous membrane?

the bi layered parietal and visceral membranes

parietal membrane

the outer layer of a serous membrane that lines the walls of a body cavity.

visceral membrane

directly wraps around the organ; the inner layer of the serous membrane that covers the organs within that cavity.

ex. lungs are wrapped by the visceral membrane whilst the parietal lines the thoracic wall

lungs area

parietal pleura/parietal pleural membrane

— pleural cavity with serous fluid

visceral pleura or visceral pleural membrane

heart area

parietal pericardium/pericardium/parietal pericardial membrane

— pericardial cavity

visceral pericardium / visceral pericardial membrane

abdominalpelvic cavity

parietal peritoneum / parietal peritoneal membrane

— peritoneal cavity

visceral peritoneum / visceral peritoneal membrane

dorsal cavities (spinal and cranial cavity)

has meninges

meninges

protects the brain and spinal cord from directly touching the inner skull

3 layers of meninges

duramater

arachnoid

piamater

arachnoid contains

cerebrospinal fluid

• shock absorber, passes thru ventricles

  • hydrocephalous (when csf cannot drain due to ventricle blockage)

synovial membrane

found lining the inside of major joints, like in the knee joint which connects the femur, tibia, and patella

synovial fluid

produced by the synovial membrane, fills up the joint cavity like in the knees and bursa/e in the meniscus ligament as lube for movement, cushion, shock absorber