Transcript Note:A heart dissection could be done in this less (see

Note:
A heart dissection could be done in this less (see file named ‘practical’ in
lesson folder).
It hasn’t been planned into the lesson as it would run over time. A
teacher demo may fit in, or alternatively it could be done as a class
practical in an extra lesson.
Settling Activity: Can you find today’s key words?
Blood
B
L
O
O
D
N
M
K
P
I
C
H
K
S
S
L
T
H
U
L
H
J
W
A
N
D
R
E
M
L
Valve
O
M
W
S
Z
W
A
X
P
F
L
Y
V
A
L
V
E
C
P
K
Heart
E
P
E
F
D
Y
H
G
R
E
S
E
N
W
R
N
L
Z
E
Q
T
W
T
G
Y
R
E
T
R
A
E
S
R
P
P
A
S
O
S
M
R
S
I
T
S
Q
A
O
W
S
O
D
C
A
D
Q
T
R
M
A
L
H
L
A
N
I
E
V
U
L
O
T
E
D
K
O
Y
T
R
P
P
R
O
V
K
F
S
Z
N
D
O
O
S
M
M
S
S
J
K
C
T
R
A
N
S
P
L
A
N
T
Cholesterol
Pump
Ventricle
Artery
Plasma
Vein
Transplant
The
Circulatory
System
Part 2
Learning Objectives:
• To learn about how a double circulatory system
pumps blood around the body.
• To learn about the structure of the heart.
• To learn about replacing damaged hearts.
• To learn about the advantages and disadvantages
of installing pacemakers.
Success Criteria:
• Complete a mini-jigsaw, cut & stick activity of the
double circulatory system.
• Label a diagram of the heart.
• List the disadvantages of heart transplants and
replacement parts.
Standard/Higher
Starter:
• Write down THREE/FIVE body organs/parts that
can be transplanted.
Higher
• Write down one good reason FOR and one
AGAINST using pig hearts for transplants.
Double Circulatory System
• This is a simple model of the
circulatory system..
• The heart is at the centre of the
circulatory system.
• It is actually made of two pumps
which are side-by-side:
One side pumps blood to the
LUNGS.
The other side pumps blood
to the rest of the BODY.
What can you say about the
‘type’ of blood pumped by each
side of the heart?
Pulmonary
Artery
Pulmonary
Vein
Vena Cava
Aorta
Now your turn. Cut out the pieces, stick them in
your books correctly, then colour.
Activity 2:
• Now using your completed jigsaw to help, copy out the following
passages IN THE CORRECT ORDER:
3
2
5
4
1
Label your diagram using page
31 of the new student book.
Damaged Hearts
• Heart disease can cause major health problems, which may result
in the need for:
replacing heart parts
an entire heart transplant
Your heart has a natural
pacemaker, which can stop
working.
An artificial pacemaker can be
fitted to replace it.
In extreme cases, the whole
heart can be replaced with one
from a human donor.
The recipient will require drugs
and medical care for the rest of
their lives.
The valves in your heart can
become defective.
These can be replaced with
valves from animals, or even
mechanical ones
Advantages & Disadvantages
• There really is only one advantage to getting a transplant or new
heart part...
You Get To Live A Little Longer!
• There is a long list of disadvantages and problems though. List
them in your books in order of most problematic, to least:
Tissue needs to be a close
match to avoid rejection.
Medication needs to be
taken for life.
Donors need to be young,
fit and healthy!
Mechanical parts have
batteries which run out.
Donor needs to have died
recently! Only 6 hours!
The patient usually doesn’t
have the time to wait for a
match.
Plenary:
• Organ transplants are one of the most miraculous advances in
modern medicine.
What would your thoughts be if it was made mandatory
to have your organs donated after you die?
Do you think everyone should sign on to the Organ Donor
Register?
If no, would your thoughts change if you suddenly found
yourself on a waiting list for a transplant?
Learning Objectives:
• Learn about how a double circulatory system
pumps blood around the body.
• Learn about the structure of the heart.
• Learn about replacing damaged hearts.
• Learn about the advantages and disadvantages of
installing pacemakers.