Circulatory System Flashcards Preview

Science 8g > Circulatory System > Flashcards

Flashcards in Circulatory System Deck (38)
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1
Q

the circulatory system includes

A

heart, blood vessels, blood

2
Q

what do blood vessels do

A

carry blood all over and sometimes bring things to other parts of the body where they are needed

3
Q

blood moves…

A

oxygen and nutrients to cells and carbon dioxide and other waste away from the cells

4
Q

active transport…

A

does require energy

5
Q

the heart is made of

A

cardiac muscle tissue

6
Q

the heart is made of ___ chambers…

A

4

7
Q

what are the names of the chambers

A

atriums and ventricles

8
Q

the upper chambers are called

A

atriums

9
Q

the lower chambers are called

A

ventricles

10
Q

during a heartbeat…

A

both atriums pull at the same time

11
Q

a _____ separates each ___ from the ____below it

A

one way valve
atrium
ventricle

12
Q

a ____ prevents blood from flowing in between the _____ and ____

A

wall
atriums
ventricles

13
Q

the sections of the circulatory system are:

A

pulmonary circ. coronary circ. systemic circ.

14
Q

what brings blood from one section to the next

A

the beating of the heart

15
Q

what supplies cells with oxygen and nutrients

A

the hearts blood vessels

16
Q

what is the coronary system

A

the flow of blood to and from the heart

17
Q

what happens if the coronary system is blocked and what can it result in?

A

oxygen and nutrients can’t reach the heart and it can result in a heart attack

18
Q

what is the pulmonary system and what does it do?

A

the flow of blood to and from the lungs

19
Q

what does blood returning from the body through the right side contain?

A

cellular waste

20
Q

what does the cellular waste include?

A

molecules of carbon dioxide and substances

21
Q

what diffuses into the blood

A

oxygen

22
Q

what side of the heart does the blood return to

A

the left

23
Q

what is systemic circulation

A

oxygen rich blood moves to all the organs except the heart and lungs. oxygen poor blood returns to the heart. then, nutrients and oxygen are delivered by blood to your body cells for carbon dioxide and waste. then the blood returns to heart in the veins of systemic circ

24
Q

what does blood move in

A

blood vessels

25
Q

what makes blood move

A

the pumping of the heart

26
Q

what are arteries

A

blood vessels that carry blood away from the heart

27
Q

after blood is pumped out of the heart, what happens

A

it travels through artery capieries and then veins

28
Q

arteries are made of:

A

thick elastic walls made of connective tissue and smooth muscle tissues

29
Q

the ______ventricle is connected to the pulmonary artery

A

right

30
Q

the left ventricle is connected to the

A

aorta

31
Q

what is a vein

A

blood vessels that carry blood back to the heart

32
Q

what happens if blood travels backwards

A

the pressure of the blood against the valve causes the valve to close

33
Q

what is the flow of the veins helped by

A

skeletal muscles

34
Q

what are 2 major veins called

A

superior vena cava and inferior vena cava

35
Q

superior vena cava

A

returns blood from the head and nek

36
Q

inferior vena cave

A

returns blood from lower part of body

37
Q

capillaries…

A

connects the veins and arteries

38
Q

what are some diseases for this system

A

heart attack, hemophilia, high cholesterol, coronary artery disease