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19 Post-Lab for Histology

Gillian Backus; Heidi W. Wangerin; and Paula Rodgers

Post-Lab for Histology

Name: ________________________

Lab Checkout:

When you finish the lab, please clean up your lab space and put away your materials neatly in the tray. Once you have thoroughly cleaned, washed, and dried your lab table, please get your instructor’s initials to check-out of lab.

  • Lab bench clean, washed, and dried
  • Materials put away properly and organized in trays
  • Microscope properly put away

Lab completed (% completed = ______ %) Instructor initials: ______________

Activity 1: Epithelial Tissue

1. How would you find epithelial tissue, when given a slide? (Think about location, organization, and polarity)

2. Which epithelial type would be:

    • best suited for abrasion?
    • best suited for diffusion?
Activities 2-3: Proper, Supportive and Fluid Connective Tissues

3. How is connective tissue distinct from epithelial tissue? (Think about location, organization, cell types, and fibers)

Activity 4: Muscular Tissue

4. How would you differentiate between dense regular connective tissue and muscle? (Think about: fiber location, location of nuclei, striations)

Activity 5: Nervous Tissue

5. How would you differentiate nervous tissue from the other types of tissue?

Activity 6: Exploring an Organ

1. View the image below of the esophagus and label the following: epithelial tissue (name the specific type shown), 2 types of connective tissue, smooth muscle tissue in the table below the image.

Panel Slides of Esophagus

Name of
Organ:
Esophagus		 Name of
Tissue #1:
(connective)
Use Figure 5
decision tree		 Name of
Tissue #2:
(muscle)
Use Figure 9
decision tree		 Name of
Tissue #3:
(connective)
Use Figure 5
decision tree		 Name of
Tissue #4:
(epithelial)
Use Figure 1
decision tree
Type of tissue
Function in
esophagus

2. Why would this epithelium be the one best suited for the esophagus?

3. Unknown organ #1: Predict the tissue type and organ given the following description: The tissue in this organ is hard, and the cells are often trapped in the matrix they secrete. This tissue must withstand significant mechanical stress and serves to assist with movement, although it has no contractile function.

    • What connective tissue is this? ______________________
    • To what organ system does this organ belong? ________________

4. Unknown organ #2: Use the descriptions below to identify the following organ.

    • This organ has numerous layers.
    • This organ contains an epithelial tissue that resists abrasion well. The top layer is constantly being shed and replaced by cells underneath. What epithelium is likely? ______________________________
    • This organ has a connective tissue layer that provides cushioning and insulation, to prevent heat loss. The cells appear large and empty. What connective tissue type might this be? _____________________________
    • What organ might this be? _______________________

5. Unknown organ #3: Use the descriptions below to identify the following organ.

    • This organ contains epithelial tissue that is suited for high rates of absorption of small substances but needs some protection. What type of epithelium might that be? ___________________________
    • This organ has several layers of muscle that contract involuntarily and are non-striated. What type of muscle tissue does it have? ______________
    • As this organ contracts, it must withstand forces from all directions, what type of connective tissue would be best? ______________________
    • There are several organs with these tissue types. What organ might this be? __________________________

6. Go back to the images you drew in the lab manual. What observed characteristics help you to properly distinguish between the following tissue types?

    • Pseudostratified columnar vs. simple columnar epithelium
    • Transitional epithelium vs. stratified squamous epithelium
    • Skeletal muscle vs. cardiac muscle
    • Fibrocartilage vs. dense regular connective tissue
    • Elastic connective vs. elastic cartilage

7. Tips for studying histology – please check-off the ones you will try and add any additional ideas.

    • Take the histology terminology quiz
    • Make flashcards/Quizlet of location and function for each tissue type
    • Use your drawings to help identify features of the tissues add your own:

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Post-Lab for Histology Copyright © by Gillian Backus; Heidi W. Wangerin; and Paula Rodgers is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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