Q: If the diameter of the field of view at 10X is 1.8 mm, what is the approximate diameter at 40X, assuming the field of view is inversely proportional to magnification?

$$\frac{1.8\ \text{mm} \times 10}{40} = 0.45\ \text{mm}$$

Q: If you are looking at a slide under 100X total magnification and the field of view is 2 mm, what will the field of view be at 400X total magnification?

$$\frac{2\ \text{mm} \times 100}{400} = 0.5\ \text{mm}$$

Q: A student is using the 40X objective lens and the field of view is 0.45 mm. If a specimen takes up half the field of view, what is its approximate size?

$$0.45\ \text{mm} \div 2 = 0.225\ \text{mm}$$

Q: Which of the following is the correct formula for calculating total magnification on a compound microscope?

$$\text{Total Magnification} = \text{Ocular Magnification} \times \text{Objective Magnification}$$

Question 1

Which of the following best describes the anatomical position?

Accepted Answer

Standing upright, facing forward, arms at sides, palms facing forward

Question 2

A patient has a wound on the anterior surface of the thigh. Which body orientation term best describes the location of the wound?

Accepted Answer

Question 3

Which plane divides the body into right and left halves?

Accepted Answer

Sagittal plane

Question 4

If a microscope has a 10X ocular lens and a 40X objective lens, what is the total magnification?

Accepted Answer

$$10 	imes 40 = 400$$

Question 5

Which body cavity contains the heart and lungs?

Accepted Answer

Thoracic cavity

Question 6

When using a compound microscope, which adjustment knob should be used first to bring the specimen into focus at low power?

Accepted Answer

Coarse adjustment knob

Question 7

A student observes a slide under 4X, 10X, and 40X objectives. How does the diameter of the field of view change as magnification increases?

Accepted Answer

It decreases

Question 8

Which regional term refers to the area between the chest and pelvis?

Accepted Answer

Abdominal

Question 9

If the diameter of the field of view at 10X is 1.8 mm, what is the approximate diameter at 40X, assuming the field of view is inversely proportional to magnification?

Accepted Answer

$$\frac{1.8\ 	ext{mm} 	imes 10}{40} = 0.45\ 	ext{mm}$$

Question 10

Which of the following is the correct order of steps for preparing a wet mount slide?

Accepted Answer

Place specimen, add water, cover with coverslip

Question 11

Which orientation term describes a structure closer to the midline of the body?

Accepted Answer

Medial

Question 12

A scientist wants to observe the mitochondria in a cell. Which microscope part should be adjusted to increase the resolution?

Accepted Answer

Objective lens

Question 13

Which of the following best describes the transverse plane?

Accepted Answer

Divides the body into superior and inferior portions

Question 14

If you are looking at a slide under 100X total magnification and the field of view is 2 mm, what will the field of view be at 400X total magnification?

Accepted Answer

$$\frac{2\ 	ext{mm} 	imes 100}{400} = 0.5\ 	ext{mm}$$

Question 15

Which of the following is NOT a function of the diaphragm on a compound microscope?

Accepted Answer

Focuses the image

Question 16

A student is using the 40X objective lens and the field of view is 0.45 mm. If a specimen takes up half the field of view, what is its approximate size?

Accepted Answer

$$0.45\ 	ext{mm} \div 2 = 0.225\ 	ext{mm}$$

Question 17

Which regional term refers to the back of the knee?

Accepted Answer

Popliteal

Question 18

When switching from low power (4X) to high power (40X) on a microscope, which of the following is most likely to occur?

Accepted Answer

The field of view decreases

Question 19

Which of the following is the correct formula for calculating total magnification on a compound microscope?

Accepted Answer

$$	ext{Total Magnification} = 	ext{Ocular Magnification} 	imes 	ext{Objective Magnification}$$

Question 20

A researcher needs to focus on a thick specimen at high magnification. Which adjustment should be used to avoid damaging the slide?

Accepted Answer

Fine adjustment knob

Fundamentals of Anatomy & Physiology: Language of Anatomy and Microscopy

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