BIO 127 Test 1 Part 1

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BIO 127 Test 1 Part 1

• Microscope and Histology
• Review

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Caution! Caution! Caution!

• Do not use these PowerPoint images in lieu of
  going to lab! If you do not actually view the
  slides, models, dissections, and other lab
  materials first-hand in the lab your chances of
  doing well on the lab test are likely to be poor.
  
• The lab test will not be constructed using images
  of this PowerPoint presentation.
• This presentation does not necessarily review
  every aspect of the lab exercises on which you
  will be tested. Be aware of the objectives
  listed in the lab manual and any announcements
  made by your lab or lecture instructor as to test
  content.
• This should not be you only method of reviewing
  for the lab test. For example, you should also
  reread all of the assigned exercises in your lab
  book.

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Topics Covered

• The Microscope
• Parts
• Principles of focusing
• Histology
• Epithelial Tissue
• Connective Tissue

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The Microscope
What is the magnification of each of these two
lenses?
If you were to view a slide through this
microscope with the objectives positioned as
shown in this photo, what would be the total
magnification achieved?
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Identify the Indicated Parts
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Identify the Indicated Parts
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Give the name and magnification for each of the
indicated lenses. Which of these three lenses
provides the greatest depth of focus?
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A.
B.
C.
The coarse focus knob should not be used with
which of the indicated lenses (A, B, or C)?
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What is the name for the dimension indicated by
the red arrow?How does this dimension change
when you increase or decrease magnification?
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What two parts seen here can be used to adjust
the brightness or contrast of the image seen
through this microscope?
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True or False?

• The lowest power objective on the microscope is
  called the Low Power objective.
• The field of view increases as you increase the
  power objective being used.
• Before using the 40X objective you should have
  always prefocused with the 10X objective.
• Typically as you increase the magnification, you
  need less light intensity to view a specimen.

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What term is used to describe the area of the
specimen seen through the oculars?
If you want to view the indicated cell at a
higher power, what should you do involving the
mechanical stage before switching to a higher
power objective?
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Histology
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Identify the tissue indicated by the
arrows. Where is this tissue type found in the
body? What functions are performed by this type
of tissue?
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Identify the tissue indicated by the
arrows. Where is this tissue type found in the
body? What functions are performed by this type
of tissue?
16
Identify the tissue seen above. Where is this
tissue type found in the body? What functions are
performed by this type of tissue? Identify the
cell at the tip of the arrow.
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Identify the tissue seen above. Where is this
tissue type found in the body? What functions are
performed by this type of tissue?
18
Identify the tissue indicated by the
arrows. Where is this tissue type found in the
body? What functions are performed by this type
of tissue?
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Identify the tissue seen above. Where is this
tissue type found in the body? What functions are
performed by this type of tissue? Identify the
cell at the tip of the arrow.
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Identify the tissue seen above. Where is this
tissue type found in the body? What functions are
performed by this type of tissue? What name is
applied to the cavity seen at the tip of the
arrow.
21
Identify the tissue seen above. Where is this
tissue type found in the body? What functions are
performed by this type of tissue? What type of
protein fibers predominate in the extracellular
material of this tissue.
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Identify the tissue indicated by the arrows.
Where is this tissue type found in the
body? What functions are performed by this type
of tissue? Where would the basement membrane of
this tissue be located in these images?
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What type of cell is indicated by the arrows?
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Identify the tissue indicated by the blue arrows.
Where is this tissue type found in the
body? What functions are performed by this type
of tissue? What type of cell is indicated by the
red arrow? What structures are indicated by the
black arrows? Is this tissue stratified?
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Highly magnified view
Identify the tissue seen above. Where is this
tissue type found in the body? What functions are
performed by this type of tissue? Identify the
type of cell seen at the tip of the arrows. What
type of protein fibers are seen here?
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Identify the tissue indicated by the arrows.
Where is this tissue type found in the
body? What functions are performed by this type
of tissue? Is this tissue vascular or avascular?
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Identify the tissue seen above. Where is this
tissue type found in the body? What functions are
performed by this type of tissue? Identify the
type of cell seen at the tip of the arrow. What
three types of protein fibers are found in this
tissue? Is this tissue vascular or avascular?