BIOS251 OL, Week 4 Lab Name: OL Lab 4: Integumentary system Learning Objectives: Identify the tissue and cellular features of the skin. Identify the structures associated with the skin. Correlate the anatomical features to its functions. Identify the role of the skin in thermoregulation and wound healing. Part A: Anatomy of the skin I. Microscopic anatomy of the skin. Complete the table using the image provided: StructureFunction AStratum corneumKeep your body temperature at a healthy level Prevent water loss BStratum granulosumTheir cell membranes thicken, and they generate larger amounts of the proteins keratin , which in fibrous . CStratum spinosumIs spin in appearance due to the protruding cell processes that join the cells via a structure called desmosome DStratum basaleThe deepest epidermal layer and attaches the epidermis to the bask lamina, below which lie the layer of the dermis. EBasement memraneSubstrate for orphans and cells and relay important signals for the development of organs for differentiation and maintenance of the tissue. FSensory nerveConverting external stimuli from the organism’s environment into internal electrical impulses GDermisSupport the epidermis and enable the skin to thrive. HLangerhans cellImmune response mounted against microbes that invade the skin. IMerkel cellImportant for neural encoding of light touch sitmuli JkeratinocytePreserve against microbial, viral, fungal, and parasitic invasion KmelanocyteSkim pigmentation
