THE FOUR MEMBRANES

MUCOUS MEMBRANE

• Found in: gastrointestinal tract, respiratory tract, reproductive tracts, and urinary tracts.
• Function: prevents pathogens and microbes from entering the body.
• Also holds blood vessels that supply blood and nutrients to epethlial.

SEROUS MEMBRANE

• Location: liver, spleen, kidneys, heart, ect.
• Function: secrete a lubricant called serous fluids that allows the organs
• To glide against other structures without causing friction.

CUTANEOUS MEMBRANE

• Location: skin
• Function: protects the body from invading pathogens and microbes
• Stores fat, vitamin D, and water.

SYNOVIAL MEMBRANE

• Location: freely moveable joints such as (shoulder, elbow and knee)
• Function: secretes synovial fluid to lubricate the joint space,making motion easier