객관식
Which of the following statements best characterizes simple squamous epithelial tissue?
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4. Tissues & Histology
Introduction to Epithelial Tissue
객관식
Which cell type is found only in the stratum spinosum and stratum granulosum of the epidermis?
A
Keratinocyte
B
Merkel cell
C
Langerhans cell
D
Melanocyte
검증된 단계별 안내1
Step 1: Begin by understanding the structure of the epidermis, which is composed of five layers: stratum basale, stratum spinosum, stratum granulosum, stratum lucidum (only in thick skin), and stratum corneum.
Step 2: Learn the function and location of each cell type mentioned in the problem: Keratinocytes are the primary cells of the epidermis found in all layers; Merkel cells are sensory cells located in the stratum basale; Melanocytes are pigment-producing cells also found in the stratum basale.
Step 3: Focus on Langerhans cells, which are specialized immune cells. They are dendritic cells responsible for detecting pathogens and are primarily located in the stratum spinosum and stratum granulosum.
Step 4: Understand why Langerhans cells are unique to these layers. Their position allows them to interact with keratinocytes and other immune cells to provide a defense mechanism against pathogens that penetrate the skin.
Step 5: Confirm that the correct answer is Langerhans cells, as they are the only cell type specifically found in the stratum spinosum and stratum granulosum, unlike the other cell types listed.
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