Body Membranes

Question 1

Kinds of membrane

Answer 1

-Epithelial
(Cutaneous, mucous, serous)
-Connective (synovial)

Question 2

Cutaneous membrane

Answer 2

• outer skin
• two layers: superficial epidermis and dermis
• dry membrane

Question 3

Mucous membrane

Answer 3

• varies with site, rests on areolar connective tissue (lamina propria)
• lines all body cavities that open to the exterior
• for absorption/secretion
• wet membrane, but not all secrete mucous
• composed of stratified squamous epithelia or simple columnar epithelia

Question 4

Serous membrane

Answer 4

• made of simple squamous epithelium on a thin layer of connective tissue
• lines all body cavities (pleura, peritoneum, pericardial) except dorsal ones

Question 5

Synovial membrane

Answer 5

• made of loose areolar tissue (no epithelial cells)
• line fibrous capsules surrounding joints, bursae (small sacs of connective tissue), and tendon sheaths
• secrete lubricating fluid to cushion organs moving against each other during muscle activity