# Chapter 1 Flashcards

Define Sonography

“to write with ultrasound”

What are the three planes of the body?

Saggital, Transverse, Coronal

Formula for Circumference

2(pi)r

Formula for circle area

(pi)r^2

Formula for sphere volume

(4/3)(pi)r^3

Reciprocal of Giga (10^9)

nano (10^-9)

Reciprocal of Mega (10^6)

micro (10^-6)

Reciprocal of Kilo (10^3)

milli (10^-3)

What is the definition of Sound?

Mechanical energy transmitted by longitudinal pressure waves in a material medium

What are the three Acoustic Variables?

Distance (particle Motion), Pressure (F/A), Density(mass/V)

What is the reciprocal of 30?

1/30

What is the reciprocal of 1/8?

8

How many hertz is 5 MHz?

5,000,000

In Long view, which side of the screen should the head be on?

the left

In transverse view, the patient’s right side should ALWAYS be on what side of the screen?

the left