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BIOLOGY 211-B10L Exit Question #2: Histology I

Multiple fill-in-the-blank

A man steps on a tack with his bare foot, piercing the sole of his foot but not drawing blood. In order from deep to superficial, list the maximum possible layers of skin that were penetrated by the tack. Deep 1. [Fill in the blank], 2. [Fill in the blank], 3. [Fill in the blank], 4. [Fill in the blank], 5. [Fill in the blank], Superficial

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To answer this question, we must arrange the epidermal layers from deepest to most superficial, assuming the tack penetrates all five layers. Option 1: Stratum basale. This is the deepest epidermal layer, also known as the germinativum, lying adjacent to the dermis. It continually produces new keratinocytes that move upward, so naming it first in a deep-to-superficial sequence is correct. Option 2: Strat......Login to view full explanation

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