Skip to main content
Biology LibreTexts

4.2: Skin Models

  • Page ID
    59557
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)

    \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)

    \( \newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\)

    ( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\)

    \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\)

    \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\)

    \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\)

    \( \newcommand{\Span}{\mathrm{span}}\)

    \( \newcommand{\id}{\mathrm{id}}\)

    \( \newcommand{\Span}{\mathrm{span}}\)

    \( \newcommand{\kernel}{\mathrm{null}\,}\)

    \( \newcommand{\range}{\mathrm{range}\,}\)

    \( \newcommand{\RealPart}{\mathrm{Re}}\)

    \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\)

    \( \newcommand{\Argument}{\mathrm{Arg}}\)

    \( \newcommand{\norm}[1]{\| #1 \|}\)

    \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\)

    \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    \( \newcommand{\vectorA}[1]{\vec{#1}}      % arrow\)

    \( \newcommand{\vectorAt}[1]{\vec{\text{#1}}}      % arrow\)

    \( \newcommand{\vectorB}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)

    \( \newcommand{\vectorC}[1]{\textbf{#1}} \)

    \( \newcommand{\vectorD}[1]{\overrightarrow{#1}} \)

    \( \newcommand{\vectorDt}[1]{\overrightarrow{\text{#1}}} \)

    \( \newcommand{\vectE}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash{\mathbf {#1}}}} \)

    \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \)

    \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)

    Thin skin

    Thick skin

    Layers of the skin:

     

    Epidermis

    • Stratum corneum
    • Stratum lucidum
    • Stratum granulosum
    • Stratum spinosum
    • Stratum basale

     

    Dermis

    • Papillary layer
    • Reticular layer
    • Layers beneath the skin (subcutaneous)

     

    Hypodermis

    • Skin structures:

    ​​​​​​​

    Dermal papillae

    Hair follicle

    • Root
    • Shaft
    • Hair follicle
    • Papilla
    • Arrector pilli (or piloerector m.)
    • Bulb

     

    Blood vessels

    Nerve endings:

    • Lamellar corpuscle
    • Tactile corpuscle

     

    Glands:

    • Eccrine (merocrine) sweat gland
    • Pore
    • Duct
    • Apocrine sweat gland
    • Sebaceous glands

     

    Nail

    • Eponychium
    • Hyponychium
    • Free edge
    • Lateral nail fold
    • Proximal nail fold
    • Lunula
    • Nail bed
    • Nail plate (body)
    • Nail matrix
    • Skin cells:

    ​​​​​​​

    Keratinocytes

    Melanocytes

    Fibroblasts

    •  Tissues types:

     

    Stratified squamous epithelium

    Areolar CT

    Dense irregular CT

    CT – adipose

    Glandular epithelium (simple or stratified cuboidal)


    This page titled 4.2: Skin Models is shared under a CC BY-SA license and was authored, remixed, and/or curated by Laird C. Sheldahl.

    • Was this article helpful?