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OVERVIEW OF HEART ANATOMY
The heart contains these main components:
1) 4 Chambers: These muscular
compartments contract to
pump blood.
2)
3)
OVERVIEW OF HEART ANATOMY
The heart contains these main components:
1) 4 Chambers: These muscular
compartments contract to
pump blood.
2) Vessels: These tubes conduct
and direct the flow of blood
toward and away from the heart.
3)
OVERVIEW OF HEART ANATOMY
The heart contains these main components:
1) 4 Chambers: These muscular
compartments contract to
pump blood.
2) Vessels: These tubes conduct
and direct the flow of blood
toward and away from the heart.
3) 4 Valves: These flaps help
prevent the backflow of blood
through the heart in order to
keep it moving in one direction.
OVERVIEW OF HEART ANATOMY
The heart contains these main components:
1) 4 Chambers: These muscular
compartments contract to
pump blood.
2) Vessels: These tubes conduct
and direct the flow of blood
toward and away from the heart.
3) 4 Valves: These flaps help
prevent the backflow of blood
through the heart in order to
keep it moving in one direction.
OVERVIEW OF HEART ANATOMY
• Blood must flow through all of
these components in order to be
pumped through the heart.
• Let’s take a closer look at the
components.
OVERVIEW OF HEART ANATOMY
arteries to head & arms
ascending aorta
superior vena cava
pulmonary trunk
right pulmonary arteries
left pulmonary arteries
right semilunar valve
left pulmonary veins
right pulmonary veins
left atrium
right atrium
left A.V. valve
left semilunar valve
right A.V. valve
right ventricle
left ventricle
inferior vena cava
descending aorta
OVERVIEW OF HEART ANATOMY
arteries to head & arms
ascending aorta
superior vena cava
right pulmonary arteries
right semilunar valve
right pulmonary veins
right atrium
right A.V. valve
right ventricle
inferior vena cava
pulmonary trunk
left pulmonary arteries
left pulmonary veins
left atrium
left A.V. valve
left semilunar valve
left ventricle
descending aorta
THE PATHWAY OF BLOOD THROUGH THE HEART
• The center of the heart contains a thick muscular wall called
two halves
the _______
septum which divides the heart into __________.
THE PATHWAY OF BLOOD THROUGH THE HEART
• The center of the heart contains a thick muscular wall called
two halves
the _______
septum which divides the heart into __________.
The RIGHT Side of the Heart
• It receives deoxygenated
____________
blood from the upper
_____ body
and from the lower
_____ body.
• Then it sends the blood to
lungs
the right and left _____
to become oxygenated
__________.
= deoxygenated blood
THE PATHWAY OF BLOOD THROUGH THE HEART
• The center of the heart contains a thick muscular wall called
two halves
the _______
septum which divides the heart into __________.
The LEFT Side of the Heart
• It receives oxygenated
__________ blood
from the left and right lungs
_____.
• Then it sends the blood to
upper body and to the
the _____
lower
_____ body.
= deoxygenated blood
= oxygenated blood
DETAILS OF THE PATHWAY
a) _____________
Deoxygenated blood from the upper body enters the heart
through the superior
________________
vena cava and from the lower body
through the inferior
_______________.
vena cava
superior vena cava
inferior vena cava
DETAILS OF THE PATHWAY
b) The deoxygenated blood is collected in the __________
right atrium
which, when full, will pump the blood through the
____________.
___________________________
right
atrioventricular (A.V.) valve to the right
ventricle
right atrium
right A.V. valve
right ventricle
DETAILS OF THE PATHWAY
c) When the right ventricle fills with deoxygenated blood,
right semilunar valve which leads
it will pump it through the __________________
up to the _______________.
pulmonary trunk
pulmonary trunk
right semilunar valve
DETAILS OF THE PATHWAY
right
d) The pulmonary trunk directs the blood to the left
___ and _____
_________________
pulmonary arteries which will lead the blood up to the _____
lungs
to get oxygenated
__________.
right pulmonary arteries
left pulmonary arteries
DETAILS OF THE PATHWAY
e) After picking up oxygen at the lungs, the oxygenated
__________ blood
will return to the heart through the left
___ and ______________
right pulmonary
veins
____ which will deposit the blood into the _________.
left atrium
left pulmonary veins
right pulmonary veins
left atrium
DETAILS OF THE PATHWAY
f) When the left atrium is full of oxygenated blood, it pumps it
left atrioventricular valve to the left
through the ______________________
___________.
ventricle
left A.V. valve
left ventricle
DETAILS OF THE PATHWAY
g) When the left ventricle is full of oxygenated blood, it pumps
left semilunar valve up to the
the blood up through the _________________
ascending
aorta
______________.
ascending aorta
left semilunar valve
DETAILS OF THE PATHWAY
arteries of the
h) The ascending aorta takes oxygenated blood to ____________
head, neck and arms , and then curves downwards to form the
_________________
_______________
descending aorta which takes the blood to the lower body.
arteries to head & arms
descending aorta
DETAILS OF THE PATHWAY
• Let’s recap the pathway for deoxygenated blood through
the right side of the heart and oxygenated blood through
the left side of the heart.
Created by Anh-Thi Tang – Tangstar Science
Copyright © April 2013 Anh-Thi Tang (a.k.a. Tangstar Science)
All rights reserved by author.
This document is for personal classroom use only.
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