# Chapter 1 Flashcards Preview

## VascularPhysics > Chapter 1 > Flashcards

Flashcards in Chapter 1 Deck (16)
1
Q

Define Sonography

A

“to write with ultrasound”

2
Q

What are the three planes of the body?

A

Saggital, Transverse, Coronal

3
Q

Formula for Circumference

A

2(pi)r

4
Q

Formula for circle area

A

(pi)r^2

5
Q

Formula for sphere volume

A

(4/3)(pi)r^3

6
Q

Reciprocal of Giga (10^9)

A

nano (10^-9)

7
Q

Reciprocal of Mega (10^6)

A

micro (10^-6)

8
Q

Reciprocal of Kilo (10^3)

A

milli (10^-3)

9
Q

What is the definition of Sound?

A

Mechanical energy transmitted by longitudinal pressure waves in a material medium

10
Q

What are the three Acoustic Variables?

A

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

11
Q

What is the reciprocal of 30?

A

1/30

12
Q

What is the reciprocal of 1/8?

A

8

13
Q

How many hertz is 5 MHz?

A

5,000,000

14
Q

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

A

the left

15
Q

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

A

the left

16
Q

What vibrates to create a sound wave in medical ultrasound?

A

Piezoelectric Crystals