IAI TEST NEWEST 2026 COMPLETE 100 QUESTIONS AND

IAI TEST NEWEST 2026 COMPLETE 100 QUESTIONS AND ( ANSWERS)

1 P a g e IAI TEST NEWEST 2026 COMPLETE 100 QUESTIONS AND ( ANSWERS) What is described as a "stratified, continually renewing epithelium that exhibits progressive differentiation in the basal to superficial direction"? - ANSWER- Epidermis The Epidermis is made up of: - ANSWER- Keratinocytes, Melanocytes, Langerhans cell and Merkel cells What account for 90-95% of the Epidermal Cells? - ANSWERKeratinocytes How many types of Keratins are distributed throughout the Epidermis? - ANSWER- 20 What is the order of layers in the Epidermis? (Inner to Outer) - ANSWER- a. Stratum Basale, Stratum Spinosum, Stratum Granulosum, Stratum Lucidum, Stratum Corneum What connects the basal cells to the basement membrane zone? - ANSWER- Hemidesmosomes 2 P a g e What is the mechanism by which a cell replicates its DNA? - ANSWER- Mitosis What is the filter through which nutrients pass from the dermal blood vessels to the basal keratinocytes? - ANSWER- Basement Membrane Zone The fibers and anchoring plaques of the _________ are interwoven with the fibers of the lamina densa. - ANSWERSublamina Densa Fibrillar Zone What are round plaques that bind together the plasma membranes of adjacent cells? - ANSWER- Desmosomes Basal cells of the secondary ridges divide _______ the primary ridges. - ANSWER- More frequently than Which ridges maintain the surface ridges, where more cells are needed because of greater abrasion? - ANSWER- Primary What are the pockets of lipids that first appear in the stratum spinosum but do not become active until the cells reach the stratum granulosum? - ANSWER- Lamellar Granules