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