Beginning at the basement membrane and traveling toward the free surface, the epidermis includes the following strata:
(a) Corneum, lucidum, granulosum, spinosum, basale
(b) Granulosum, lucidum, spinosum, basale, corneum
(c) Basale, spinosum, granulosum, lucidum, corneum
(d) Lucidum, granulosum, spinosum, basale, corneum

검증된 단계별 안내

Step 1: Understand the structure of the epidermis, which is the outermost layer of the skin composed of multiple strata (layers) arranged from the deepest (closest to the basement membrane) to the most superficial (free surface).

Step 2: Recall the correct order of the epidermal strata starting from the basement membrane upward: Stratum basale (deepest), stratum spinosum, stratum granulosum, stratum lucidum (only in thick skin), and stratum corneum (most superficial).

Step 3: Compare the given options with the known order of the strata to identify which sequence correctly lists the layers from the basement membrane to the free surface.

Step 4: Eliminate options that do not start with the stratum basale or that place the stratum corneum anywhere other than the outermost layer.

Step 5: Confirm that the correct answer matches the sequence: basale, spinosum, granulosum, lucidum, corneum.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Layers of the Epidermis

The epidermis is the outermost layer of the skin composed of five distinct strata. These layers, from the deepest to the surface, are stratum basale, spinosum, granulosum, lucidum (only in thick skin), and corneum. Each layer has specific functions related to cell growth, protection, and keratinization.

Basement Membrane

The basement membrane is a thin, fibrous structure that separates the epidermis from the underlying dermis. It serves as the starting point for the epidermal layers and anchors the basal cells, which are responsible for generating new skin cells that migrate upward through the strata.

Keratinization Process

Keratinization is the process by which epidermal cells mature and move from the basal layer to the surface, becoming filled with keratin protein. This process results in the formation of the tough, protective outer layer (stratum corneum) that prevents water loss and protects against environmental damage.