Collagen Types

Question 1

collagen type I

Answer 1

form collagen type I fibers; thick; found in skin, tendons, bone, and dentin; resistance to tension

Question 2

collagen type II

Answer 2

forms cartilage; loose; found in cartilage and vitreous body; resistance to pressure

Question 3

collagen type III

Answer 3

form reticular fibers; thin; found in skin, muscle, blood vessels; frequently found with type I; structural maintenance in expansible organs

Question 4

collagen type VII

Answer 4

anchors basal lamina to underlying CT; not visible, detected by immunocytochemistry; found in epithelia; anchors skin epidermal basal lamina to underlying stroma

Question 5

collagen type IV

Answer 5

found in lamina densa of the basal lamina; not visible, detected by immunocytochemistry; found in all basement membranes; supposrt of delicate structures, filtration