Histology & Microscope Quiz Flashcards
(31 cards)
What is the function of the ocular lens (eyepiece)?
Used to look through to view the specimen; usually magnifies 10x.
What does the head of the microscope do?
Holds the eyepieces and connects them to the objective lenses.
What are objective lenses?
Lenses closest to the specimen; provide different levels of magnification (e.g., 4x, 10x, 40x, 100x).
What is the frame (arm) of the microscope?
Supports the head and connects it to the base.
What is the function of the nose piece?
Rotates to change between different objective lenses.
What does the mechanical stage do?
Holds the slide and allows for precise movement of the specimen.
What is the condenser?
Focuses light onto the specimen from the illumination source.
What is the function of the illumination?
Provides light to view the specimen.
What is the brightness adjustment knob used for?
Controls the intensity of the light source.
What is the base of the microscope?
Supports the entire microscope and houses the illumination.
What is the light switch?
Turns the microscope’s illumination on and off.
What is the coarse adjustment knob used for?
Moves the stage up and down for general focusing.
What is the fine adjustment knob used for?
Makes small adjustments to sharpen the image.
What is the diopter adjustment?
Adjusts for differences between your eyes for clearer viewing.
What does the stage control do?
Moves the slide left/right and forward/backward on the stage.
What are the characteristics of simple squamous epithelium?
Flat cells with flattened nucleus; 1 layer; covers surfaces; found in intestine.
Where is simple cuboidal epithelium found and how is it identified?
Found in kidney; square-shaped cells with round nucleus; 1 layer; lines spaces.
What does simple columnar epithelium look like and where is it found?
Rectangular cells with oval nucleus near basal surface; 1 layer; found in intestine.
How can you identify stratified squamous epithelium?
Flat cells at apical surface; flattened nuclei; multiple layers; found in skin.
How do adipose tissues appear and where are they located?
Pale, empty-looking cells with nucleus at edge; matrix not easily seen; subcutaneous.
What are features of areolar connective tissue?
Scattered pale cells; reticular and collagen fibers in mat; found in skin and mucus membranes.
Describe hyaline cartilage under the microscope.
Chondrocytes in lacunae; pale matrix with no visible fibers; found in trachea.
What distinguishes elastic cartilage from hyaline?
Chondrocytes in lacunae; matrix has many dark elastic fibers; found in epiglottis.
How can bone tissue be identified histologically?
Rings of matrix with osteocytes between them and a central canal; found in ground bone.
