Hemo Quiz Flashcards Preview

Science 2014-2015 > Hemo Quiz > Flashcards

Flashcards in Hemo Quiz Deck (26)
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0
Q

Who observed the circulatory system and predicted what and when did they do so?

A

William Harvey, capillaries, 1628

1
Q

What does “hemo” mean in Greek?

A

Blood

2
Q

The circulatory system is a system of

A

Arteries and veins

3
Q

Arteries carry what

A

Oxygenated blood to the body

4
Q

Where can you feel your pulse

A

Arteries

5
Q

What is the structure of arteries

A

Thick muscular walls because the force of the blood is so great

6
Q

Veins carry what

A

Deoxygenated blood from the body to the heart

7
Q

How does the blood move

A

One direction, the muscles help to push the blood up to the brain

8
Q

What is the structure of veins

A

Have thinner walls to help squeeze blood back to the heart

9
Q

What is the structure of the heart

A

Four chambers, blood flows in one direction

10
Q

At what rate does the heart pump blood

A

1 quart every ten seconds

11
Q

The heart does more work than

A

All the muscles combined

12
Q

What controls the speed in which the heart beats

A

Brain

13
Q

Which nerve tells the heart to beat faster

A

Sympathetic nerve

14
Q

Which nerve tells the heart to beat slower

A

Vagus nerve

15
Q

How big are capillaries

A

Microscopic

16
Q

How thick are capillaries

A

On cell thick

17
Q

What gives off nutrients and oxygen

A

Capillaries

18
Q

What does the capillary do

A

Takes away wastes and carbon dioxide

19
Q

Cells are generally how far away from the capillaries

A

Two cells

20
Q

How do red blood cells pass through

A

In single file

21
Q

What controls the red blood cells

A

A gate keeper muscle called the sphincer

22
Q

Barostat is

A

Pressure regulator in the neck that controls pressure in the brain

23
Q

What regulates your heart rate

A

Hormones

24
Q

Lungs do what

A

Take carbon dioxide out of the blood

25
Q

What percent of sea water is the same as our blood

A

88%