7.8 Flashcards Preview

Chapter 7 Science > 7.8 > Flashcards

Flashcards in 7.8 Deck (17):
1

Diseases in the circulatory system...

Valve disease
Atherosclerosis
Coronary heart disease
Pericarditis

2

Valve disease is caused by...

When the valves become narrow. Resulting in blood not flowing smoothly.

3

What is the result of valve disease?

Less oxygen
Less nutrients.

4

Atherosclerosis is when...

Blood vessels narrow, and their is a build up of plaque on inside of arteries and veins. This restricts blood flow.

5

What can follow after atherosclerosis...

A heart attack.

6

A heart attack is caused by...

Coronary heart disease.

7

Coronary heart disease can happen due to...

Fat deposits blocking vessels.

8

The pericardium is a...

Thin sac that surrounds the heart and reduces friction.

9

When the pericardium is infected by bacteria, the sac is being filled with fluid. What is this disease?

Pericarditis.

10

Pericarditis can be treated with...

Antibiotics.

11

The excretory system removes...

Waste

12

Excretion is the process...

Of removing wastes.

13

Main organs of this system are...

Kidneys, liver, lungs and skin.

14

Kidneys are approximately how many cm's long.?

10 cm

15

Kidneys filter...

Blood

16

Skin releases....

Waste heat by evaporation from skin.

17

Liver is responsible for...

Metabolism of many substances.