Blood Flow Through the Heart [Made Easy] - Cardiac Circulation Animation
Summary
TLDRThis Easy Med video simplifies the complex blood flow through the heart, using a 12-step process divided into the right and left sides. It starts with deoxygenated blood entering the right atrium via the superior and inferior vena cava, then moves through the tricuspid valve into the right ventricle, and is pumped to the lungs via the pulmonary valve. Oxygenated blood returns from the lungs through the pulmonary veins to the left atrium, passes through the mitral valve into the left ventricle, and is finally ejected into the aorta for systemic circulation. The video employs diagrams and a 2x2 table to clarify these steps, making it easier to understand and remember the heart's function.
Takeaways
- 📚 The video is part of the Easy Med channel, which simplifies medical and science topics.
- 🔗 The channel provides free notes and an Easy Med blog that correlate with the videos, found on easymedlearning.com.
- 🧠 The video's focus is on the blood flow through the heart, aiming to help viewers label a detailed diagram by the end.
- 💡 The video uses simple tricks and a step-by-step approach to explain the blood flow, making it easier to remember.
- 🟦 The right side of the heart handles deoxygenated blood, which is pumped to the lungs for oxygenation.
- 🟥 The left side of the heart receives oxygenated blood from the lungs and pumps it to the rest of the body.
- 🔄 The blood flow through the heart is divided into 12 steps, with six steps on each side, following a similar pattern.
- 🩸 The right atrium receives deoxygenated blood from the superior and inferior vena cava, then pumps it to the right ventricle.
- 🫀 The left atrium collects oxygenated blood from the pulmonary veins, then sends it to the left ventricle.
- 🔁 The video emphasizes the importance of understanding the valves (tricuspid, pulmonary, mitral, aortic) in the blood flow process.
- 📈 The video concludes with a realistic animation of blood flow, reinforcing the learned concepts.
Q & A
What is the primary purpose of the Easy Med channel?
-The primary purpose of the Easy Med channel is to make medical and science topics easy to understand by providing educational videos, notes, and a blog that correlate with the video content.
How can viewers access additional materials related to the videos?
-Viewers can access additional materials such as notes and an easy med blog by visiting the Easy Med website, easymedlearning.com, which is linked in the video description.
What is the focus of the video script provided?
-The focus of the video script is to explain the blood flow through the heart, using simple tricks and a step-by-step approach to help viewers understand and label a diagram of the heart's blood flow.
How is the heart divided for the purpose of understanding blood flow?
-The heart is divided into two sides for understanding blood flow: the right side, shown in blue, and the left side, shown in red. Each side has six main steps or structures through which blood flows.
What are the two main blood vessels that bring deoxygenated blood to the right side of the heart?
-The two main blood vessels that bring deoxygenated blood to the right side of the heart are the superior vena cava and the inferior vena cava.
What is the role of the tricuspid valve in the blood flow through the heart?
-The tricuspid valve allows blood to flow from the right atrium to the right ventricle, preventing backflow during the process.
What is the function of the main pulmonary artery in the context of blood flow?
-The main pulmonary artery carries deoxygenated blood from the right side of the heart to the lungs to become oxygenated.
How does the left side of the heart contribute to the overall blood flow?
-The left side of the heart pumps oxygenated blood it receives from the lungs to the rest of the body through the pulmonary veins, left atrium, left ventricle, and aorta.
What is the significance of the mitral and aortic valves in the blood flow through the heart?
-The mitral valve allows blood to flow from the left atrium to the left ventricle, while the aortic valve allows blood to flow from the left ventricle into the aorta, ensuring unidirectional flow.
What is the main goal of the right side of the heart in terms of blood flow?
-The main goal of the right side of the heart is to pump deoxygenated blood it receives from the rest of the body to the lungs to become oxygenated.
What is the main goal of the left side of the heart in terms of blood flow?
-The main goal of the left side of the heart is to pump oxygenated blood it receives from the lungs to the rest of the body.
Outlines
🩺 Introduction to Blood Flow Through the Heart
This paragraph introduces the topic of the video, which is the blood flow through the heart. It emphasizes the educational resources available on the Easy Med channel, such as video notes and an accompanying blog on the website easymedlearning.com. The video promises to teach viewers how to label a diagram of the heart's blood flow by the end, using simple tricks for memorization. The host also references a previous video that covered the anatomy of the heart, suggesting that viewers watch it for a comprehensive understanding. The heart is divided into two sides for easier understanding: the right side, shown in blue, and the left side, shown in red, each with six main steps or structures involved in blood flow.
🔍 Detailed Explanation of Blood Flow in the Heart
This paragraph delves into the specifics of blood flow through the heart, starting with the right side. It describes the role of the superior and inferior vena cava in carrying deoxygenated blood to the right atrium. The blood then moves through the tricuspid valve into the right ventricle and is pumped into the pulmonary artery through the pulmonary valve during systole. The function of the right side of the heart is to send deoxygenated blood to the lungs for oxygenation. The paragraph then transitions to the left side of the heart, explaining how oxygenated blood from the lungs enters through the pulmonary veins into the left atrium, moves through the mitral valve into the left ventricle, and is then pumped into the aorta through the aortic valve during systole. The left side's function is to distribute oxygenated blood to the rest of the body. The paragraph concludes with a recap using a 2x2 table from a previous video to visualize the blood flow and a transition to a more realistic anatomical image for further explanation.
Mindmap
Keywords
💡Blood flow
💡Heart
💡Right side of the heart
💡Left side of the heart
💡Superior vena cava
💡Inferior vena cava
💡Pulmonary veins
💡Valves
💡Cardiac cycle
💡Diastole
💡Systole
Highlights
Introduction to the Easy Med channel and its resources for learning medical and science topics.
The video's focus on explaining blood flow through the heart with simple tricks for memorization.
The use of a diagram to label and understand the entire cardiovascular system by the end of the video.
Division of the heart into two sides, right and left, each with six main steps or structures for blood flow.
The similarity in pattern between the right and left sides of the heart in terms of blood flow.
Detailed explanation of the first step involving the superior and inferior vena cava.
Description of the right atrium as the entry point for deoxygenated blood from the body.
Explanation of the tricuspid valve's role in blood flow from the right atrium to the right ventricle.
The function of the pulmonary valve and main pulmonary artery in sending deoxygenated blood to the lungs.
The role of the left side of the heart in pumping oxygenated blood to the rest of the body.
Introduction of the pulmonary veins as carriers of oxygenated blood from the lungs to the left atrium.
The mitral valve's function in allowing blood to flow from the left atrium to the left ventricle.
Description of the aortic valve and aorta's role in distributing oxygenated blood to the body.
The use of a 2x2 table to visualize blood flow through the heart's main structures.
Application of learned concepts to a realistic heart diagram for better understanding.
Animation summarizing the blood flow through the heart, highlighting deoxygenated and oxygenated blood paths.
Encouragement for viewers to engage with the video by liking, commenting, and subscribing for more educational content.
Transcripts
[Music]
welcome back to the easy med channel
where medical and science topics are
made easy
every easy med video comes with notes
and an easy med blog that correlates
with the video
all found on the easymed website
easymedlearning.com linked down below in
the description
so if you don't want to miss out on all
this free material that will save you
time and studying
and help you throughout your career make
sure to subscribe to the channel
in this video today we're going to be
talking about the blood flow through the
heart
we've got some simple tricks that will
help you remember the material
by the end of this video you'll be able
to label this entire diagram
we're also going to be using this
diagram today to walk through the blood
flow of the heart step by step
you might remember in the last easy med
video we used the same diagram to learn
the anatomy of the heart
by the end of that video we were able to
label all the main cardiac structures
shown here
we simplified the anatomy of the heart
using this cartoon image and 2x2 table
that video is full of tricks and ways to
remember the names and anatomical
features of the main cardiac structures
so i highly encourage you check out the
video it'll be linked down below in the
description
that will teach you the anatomy of the
heart and now we're going to walk
through the blood flow through those
structures
the easiest way to go about this is to
divide the heart into two sides
first we have the right side shown in
blue there are six main steps or six
main structures
in which blood flows through the right
side of the heart then we have the left
side shown in red
same thing here there are six main steps
or six main structures
in which blood flows through the left
side of the heart we're going to walk
through these 12 steps one by one
and just like we did in the last video
about the anatomy of the heart we're
going to first start off with this
cartoon image
and then we'll go back to the original
diagrams to bring it all together
one of the first things you'll notice if
you take a look at the 12 steps as a
whole
is that the pattern between the right
and left side of the heart is similar
steps one and six involve a blood vessel
and this makes sense because that's how
blood enters and exits that side of the
heart
steps two through five go chamber valve
chamber valve
so if you remember this general pattern
this will help you remember the order in
which blood
flows through each side of the heart
let's now walk through these 12 steps
starting with the right side of the
heart
the first step is the superior vena cava
and inferior vena cava
these are the main blood vessels that
carry the deoxygenated venous blood from
the rest of the body
to the right side of the heart
specifically the right atrium
the superior vena cava is located
superiorly and it carries the
deoxygenated venous blood from the upper
body to the right atrium
the inferior vena cava is located
inferiorly and it carries the
deoxygenated venous blood from the lower
body to the right atrium
and this brings us to step two which is
the right atrium
the right atrium is the first chamber of
the heart in which the deoxygenated
blood from the rest of the body
enters blood will then flow from the
right atrium to
another chamber known as the right
ventricle this occurs during diastole
when the heart is at rest and filling
with blood
there's a previous easy med video where
we talk about the cardiac cycle along
with diastole and systole
and how the pressures in the heart
change that video will be linked down
below in the description so feel free to
go check it out
now going back to those steps you may
have noticed that we skipped the third
one
as blood flows from the right atrium to
the right ventricle it travels through a
valve known as the tricuspid valve
so let's recap this so far step one was
the superior vena cava and inferior vena
cava
they were the blood vessels that carried
the deoxygenated blood from the rest of
the body to the right atrium which is
step number two
blood then flows from the right atrium
through the tricuspid
valve which is step number three and
enters another chamber of the heart
known as the right ventricle
which is step four during systole when
the heart is squeezing and contracting
it pumps blood forward from the right
ventricle to the main pulmonary artery
or pulmonary trunk
as blood flows from the right ventricle
to the main pulmonary artery it travels
through another valve known as the
pulmonary valve
so the pulmonary valve is step number
five and the main pulmonary artery is
step number six
the function of the main pulmonary
artery is to then carry the deoxygenated
blood from the right side of the heart
to the lungs to become oxygenated it
does so using the right and left
pulmonary arteries
which we'll see some better pictures of
coming up so the main goal of the right
side of the heart
is to pump the deoxygenated blood it
receives from the rest of the body
to the lungs to become oxygenated an
easy way you can remember the function
of the right side of the heart is that
it pumps blood right to the lungs
so now that the deoxygenated blood has
become oxygenated we need to pump this
blood to the rest of the body and that's
where the left side of the heart comes
into play
starting with the first step we again
have blood vessels involved they're the
pulmonary veins and their function is to
carry oxygenated blood from the lungs to
the left side of the heart
specifically the left atrium we'll see
some better pictures of the pulmonary
veins coming up
the second step is the left atrium the
left atrium is the chamber of the heart
that receives oxygenated blood from the
lungs
blood will then flow from the left
atrium to the left ventricle during
diastole
as blood flows from the left atrium to
the left ventricle it travels through
another valve known as the mitral valve
so you should be noticing a similar
pattern on the left side as you did on
the right side
first we have blood vessels that allow
the blood to enter that side of the
heart
then we entered an atrium then we
traveled through a valve
and now we've entered another ventricle
during systole when that heart is
squeezing and contracting
it's going to pump blood forward from
the left ventricle into the aorta
as blood flows from the left ventricle
into the aorta it passes through another
valve known as the aortic valve
so you should be seeing a similar
pattern here again between that left and
right side
we've got the aortic valve which is step
number five we have the aorta which is
step number six
the function of the aorta is to carry
oxygenated blood from the left side of
the heart to the rest of the body
so the main goal of the left side of the
heart is to pump oxygenated blood it
receives from the lungs to the rest of
the body
an easy way to think about the function
of the left side of the heart is that it
pumps blood that has left the lungs
let's now use the two by two table we
made in the last video about the anatomy
of the heart
and this will give us another way to
visualize the blood flow through the
heart
so first we have the superior vena cava
inferior vena cava that carry
deoxygenated blood from the body to the
right atrium
blood will then flow from the right
atrium through the tricuspid valve
and enter the right ventricle blood will
then exit the right ventricle
travel through the pulmonary valve and
enter the main pulmonary artery
to be delivered to the lungs to become
oxygenated the oxygenated blood will
then travel from the lungs
through the pulmonary veins and enter
the left atrium
blood will then flow from the left
atrium through the mitral valve and
enter the left ventricle
blood exits the left ventricle travels
through the aortic valve
and enters the aorta to be delivered to
the rest of the body
now that we have a good understanding of
the blood flow through the heart using
cartoon diagrams
let's apply this to a more realistic
image you can see the blue arrows
represent the flow of deoxygenated blood
through the right side of the heart
and the red arrows represent the flow of
oxygenated blood through the left side
of the heart
we're now going to remove the arrows and
labels so if you need more time to look
at this diagram hit pause in the video
and we're going to bring all this
together with a quick animation
first we have all the deoxygenated
venous blood from the rest of the body
that needs to go to the right side of
the heart to be pumped to the lungs
so the superior vena cava will carry the
deoxygenated blood from the upper body
and the inferior vena cava will carry
the deoxygenated blood from the lower
body
the deoxygenated blood will first enter
the right atrium
during diastole when the heart is
relaxed the blood will flow from the
right atrium through the tricuspid valve
and enter the right ventricle then
during systole when that ventricle is
squeezing and contracting
it will pump the deoxygenated blood from
the right ventricle through the
pulmonary valve and enter the main
pulmonary artery
from there the deoxygenated blood will
travel through the right and left
pulmonary arteries and enter the lungs
to become
oxygenated oxygenated blood will then
travel from the lungs through the
pulmonary veins and enter the left
atrium
during diastole when that heart is
relaxed oxygenated blood will travel
from the left atrium through the mitral
valve and enter the left ventricle
then during systole when the ventricle
is contracting and squeezing
oxygenated blood will be pumped forward
through the aortic valve and into the
aorta to be delivered to the rest of the
body
so now if we go back to the original
diagram we started the video with you
should be able to label and understand
the entire image
and hopefully this video made it easier
for you if you found the content useful
please give the video a quick like or
drop a comment down below before you go
and if you haven't already make sure to
hit that subscribe button so you don't
miss out on future videos that make
medical and science topics easy
as well as all the free notes and blogs
that correlate with the videos
all of this will help save you time and
studying and help you throughout your
career
you can find the easymed blog and notes
for this video linked down below in the
description
or you can go to easymedlearning.com
thanks for watching and i hope you check
out future videos
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