HP1 Epithelia Classification

Epithelia Classification

  • The range of epithelial tissues varies in relation to the functional activities required of epithelial tissue in different regions of the body
  • At this stage, there is no need to learn the distribution of various types of epithelia
  • However, you should try and relate the structure of epithelia to function
  • Begin to consider what the clinical consequences of disruption of the epithelial covering in various locations in the body would be
  • For example, in the respiratory tract the ducts are lined by ciliated cells
  • The cilia beat to remove mucus from the lungs
    • If the cilia are damaged/nonfunctional what might be the clinical outcome?
    • The epidermis of the skin is broken eg when you cut yourself - what problems can that cause?
  • These are the types of question that you should continually ask yourself each time your learning covers, or revisits, cells, tissues and organs
  • Epithelial cells may become malignant (cancerous)
  • Cancers of epithelial cells are known as carcinomas and represent about 90% of the cancers which may develop in your patients
  • Epithelium is clinically significant as well as being essential to a normal life

Question:

    You are provided with 8 micrographs of epithelia (labelled a - h)

    Classify the type of epithelium shown in each micrograph,
    eg stratified cuboidal epithelium

    Micrograph A Micrograph B Micrograph C Micrograph D Micrograph E Micrograph F Micrograph G Micrograph H

    Vein:

    Bile Duct:

You are provided with 8 micrographs of epithelia (labelled a - h)
Classify the type of epithelium shown in each micrograph, eg stratified cuboidal epithelium

What type of epithelium is shown in micrograph A?

What type of epithelium is shown in micrograph B?

What type of epithelium is shown in micrograph C?

What type of epithelium is shown in micrograph D?

What type of epithelium is shown in micrograph E?

What type of epithelium is shown in micrograph F?

What type of epithelium is shown in micrograph G?

What type of epithelium is shown in micrograph H 1?

What type of epithelium is shown in micrograph H 2?