Biol 1134 MIDTERM 1
If the ocular lens magnifies a specimen 10x, and the objective lens used magnifies the specimen 35x, what is the total magnification being used to observe the specimen?
350x
The microscope field is the ___
Area you can see through the lenses of the microscope
The ____ is a substage lens that concentrates light on the specimen
Condenser
When you open the abdominal cavity of your dissection specimen, you realize that the kidneys are ____ to the intstines
Deep
This is the formula for calculating the diameter of an unknown microscope field
Diameter of field A x total magnification of field A= diameter of field B x total magnification of field B
(T/F) You should always begin observation of specimens with the oil immersion lens
False
The stomach is found primarily in the ____ quadrant of the abdominopelvic cavity
Left upper
Microscope specimens have depth, as well as length and width. If you are focused on the middle layer of cells and wish to see the top layer of cells clearly, you should move the _____
Lens further away from the slide
When observing a slide under a microscope, begin focusing with the ____-power objective lens in placw
Lowest
The working distance for a 10x objective lens is ___
Much greater than the working distance for the 100x objective lens
The total magnification of an object can be found by ___
Multiplying the power of the objective lens by the power of the ocular lens
The _____ of the microscope carries 3 or 4 objective lenses
Nsepeice
This serous membrane lines the walls of the abdominal cavity and covers its organs
Peritoneum
The ability to discriminate two close objects as separate is called ____
Resolution (or resolving power)
Before putting away the microscope in the storage cabinet you must observe all of the following except
Rotate the height power objective lens in position
The microscope slide rests on the ____ while being viewed
Stage
Your lab microscope is parfocal. This means that _____
The slide should be almost in focus when changing to higher magnifications
The term femoral pertains to the
Thigh
To transport a microscope, hold it _____
Upright, with one hand on its arm and the other hand supporting its base
The kidneys are part of the ___ system
Urinary
The ___ surface of the human body faces forward
Ventral
How do you clean the lenses of your microscope?
With the special lens paper and cleaner