EXP 4-5

Cards (82)

  • What are the 2 major tissue layers of the skin?
    Epidermis and Dermis
  • Most superficial layer of the skin

    Epidermis
  • Name all of the layers of the Epidermis
    Come Lets Get Sun Burnt
    • Stratum Corneum
    • Stratum Lucidum
    • Stratum Granulosum
    • Stratum Spinosum
    • Stratum Basale/Germinativum
  • What is the outermost layer of the Epidermis?
    Stratum Corneum
  • How many layers of dead squamous cells does the Stratum Corneum have?
    25-30 or more layers of dead squamous cells (keratinocytes)
  • Waterproof layer of the Epidermis
    Stratum Corneum
  • 3-5 layers of dead flat keratinocytes
    Stratum lucidum
  • Stratum lucidum is only found in _
    Thick skin
  • 3-5 of flattened dying keratinocytes
    Stratum granulosum
  • Layer with no dividing cells
    Stratum granulosum
  • 8-10 rows of keratinocytes with thorn-like projections
    Stratum spinosum
  • What is the deepest layer of the epidermis?
    Stratum basale/germinativum
  • Single row of keratinocytes attached to the basement membrane
    Stratum Basale/Germinativum
  • Deeper layer of the skin

    Dermis
  • What are the 2 layers of the Dermis
    Papillary and Reticular
  • Contains Finger-like projections
    Dermal Papillae
  • Genetically determined whorls called epidermal ridges in thick skin
  • Deeper and much thicker layer of the Dermis
    Reticular layer
  • What are the accessory structures of the skin
    Hair, Nails, and Glands
  • Columns of dead keratinized cells bound by extracellular proteins
    Hair Strand
  • What part of a hair strand projects from the surface of the skin?
    Shaft
  • What part of a hair strand penetrates the dermis?

    Root
  • Layers of the Hair
    Inner Medulla, Middle Cortex, Outer Cuticle
  • What is the tightly packed keratinized epidermal cells that cover the dorsal surface of each digit?
    Nail
  • Part of the nail that extends past the digits

    Free edge
  • Whitish half-moon shaped proximal area of the nail

    Lunula
  • Beneath the free edge of the nail. It secures nail to fingertip
    Hyponychium
  • Narrow band of dermis that adheres to the nail
    Eponychium
  • Types of Exocrine Glands
    Mammary
    Ceruminous
    Sebaceous
    Sweat/Sudoriferous
  • Eccrine glands produce 600 mL sweat/day
  • Sweat perceived as moisture on the skin
    Sensible
  • Sweat that evaporates before one perceives it as moisture
    Insensible
  • Secretion is commonly referred as “cold sweat”
    Apocrine Glands
  • Sweat glands on the palms of the hand and soles of the feet
    Eccrine Glands
  • Sweat glands found in the armpits and groin area

    Apocrine Glands
  • 4 Types of Tissues in the human body
    • Epithelial
    • Connective
    • Muscle
    • Nervous
  • Responsible for coordinating and controlling many body activities
    Nervous
  • A tissue that contracts or shortens, making movement possible
    Muscle
  • A diverse primary tissue type that makes up part of every organ in the body
    Connective
  • A covering or lining tissue
    Epithelial