Exam (elaborations)
Exam 3 - BMCC BIO 425 Questions and Answers (2024/2025)
Exam 3 - BMCC BIO 425 Questions and Answers (2024/2025)
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©PREP4EXAMS@2024 [REAL EXAM DUMPS] Thursday, July 18, 2024 5:35 PMExam 3 - BMCC BIO 425 Questions and
Answers (2024/2025)
Epidermis - ✔️✔️- keratinized stratified squamous epithelium
- lacks blood vessels
- surface of the skin
- consists of dead blood cells packed with keratin
Stem cells - ✔️✔️found in the deepest layer of the epidermis (the basal layer) and they divide to
give rise to keratinocytes
Keratinocytes - ✔️✔️synthesizes keratin
Melanocytes - ✔️✔️synthesize black to brown pigment (melanin)
Tactile cells - ✔️✔️found in the basal layer of the dermis and are associated with underlying
dermal nerve fiber
Dendritic cells - ✔️✔️found in 2 layers of the epidermis, they stand against toxins, microbes and
detect such invaders then alert the immune system
Stratum basale (basal surface) - ✔️✔️the lowest layer closest to the dermis, consists of single layer
cuboidal to low columnar cells
Stratum spinosum - ✔️✔️thickest layer of the epidermis in thin skin, several layers of
keratinocytes, dendritic cells are found in this layer, desmosomes hold cells together in this layer,
the cells are also bound together by tight junctions
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