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Circulatory System QuestionsAMSTI Book
Back in Circulation-pg 126-129
1. Why is the circulatory
system called a closed
circulatory system?
There is no beginning and no
end to the circulatory system
2. What does the circulatory
system consists of?
Heart, arteries, veins,
capillaries, blood
3. How much blood does your
body need? 5 lites of blood to
stay alive
4. Where in your body is the
heart located, and what is the
name of the layer that covers
the heart? The heart is
located in the chest cavity,
cushioned by the lungs and
covered by a sac called
pericardium
5. How can the circulatory
system be compared with a
transportation system? The
heart is the hub and
transport many important
materials just like the
transportation system
6. What are arteries? Arteries
are large one way blood
vessels that carry blood away
from the heart.
7. What do the arteries branch
out into? Arteries branch out
into smaller vessels called
arterioles and eventually into
smaller thinnest blood vessels
called the capillaries
8. What are the passengers
riding in the arteries called?
Red and white blood cells
9. What happens when red
blood cells reach the lungs?
When a drop of blood
reaches lungs it unloads
carbondioxide and picks up
oxygen
10.What would be the length
of the human blood vessels
placed end to end? 96,000
Kilometers long
11.How long does it take for
the blood cell to circulate
through the body? 60
seconds
12.Once the oxygen molecule
latches on to the red blood
cells in the capillaries where
does it go? Through which
blood vessel? The oxygen
molecule latched to the red
blood cells goes to the left
side of the heart, through the
pulmonary vein
13.How many chambers do
Peppi and Bollo have to travel
through? Two chambers with
oxygen rich blood, upper left
atrium and lower left
ventricle
14.Which sound does the
squeeze in the bottom of the
heart produce? Top of the
heart? When the valve
between the atrium and
ventricle closes, it produces
the lub sound. When the
valve between the ventricle
and arteries closes, it
produces a dub sound.
15. What causes a heartbeat?
Heartbeats are caused by
electrical impulses that come
from the small area in the
upper right corner of the
heart. These impulses make
the heart contract
16.Where do Peppi and Bollo
go after they leave the heart?
Peppi and Bollo go to a large
artery called the aorta after
leaving the left ventricle
17.To what part of the body
does the aorta carry blood ?
Aorta branch into smaller
arteries , then capillaries and
carry blood to all parts o the
body
18.What happens to oxygen
and carbon dioxide in the
brain cells? Oxygen is
delivered to the brain cells
and carbon dioxide is picked
up in exchange
19.Which blood vessel carry
Peppi and Bolo back to the
heart? Through which side do
they enter? Where do they
go from the upper chamber?
A vein carry Peppi and Bollo
right side o f the heart.
20.Which blood vessel carry
them to the lung? Pulmonary
artery carry Peppi and Bollo
to the lungs
21.What are the upper
chambers of the heart called?
What are the lower chambers
of the heart called? Upper
chambers of the geart are
called atrium and the lower
chambers are called
ventricles
22.Where is the blood in the
right atrium coming from?
From the body. Where is the
blood in the left atrium
coming from? From the lungs
23.Which side has the bright
red (oxygen rich) blood? left
side of the heart
24.Where does the blood go
when the lower chamber
ventricles contract. . When
the ventricles contract the
blood from the ventricles
move into the arteries Specify
both the bright red and the
tired dark red blood? The
dark red blood red goes to
the lungs to get oxygen
bright red goes to the body .
25.What are two systems of
circulation-? Pulmonary and
systemic
26. Describe systemic
circulation. Systemic circulation
is the part of the cardiovascular
system which carries oxygenated
blood away from the heart to the
body, and returns deoxygenated
blood back to the heart
27.Describe pulmonary
circulation
Pulmonary circulation is the portion
of the cardiovascular system which
carries oxygen-depleted blood away
from the heart, to the lungs, and
returns oxygenated blood back to
the heart