1. Heart and Pulse sábado, 27 de abril de 2019sábado, 27 de abril de 2019
samedi 27 avril 2019samedi 27 avril 2019
Saturday, 27 April 2019
sábado, 27 de abril de 2019sábado, 27 de abril de 2019
Heart and Pulse
Level
Objective
Outcome D
Describe the structure and function of the heart and blood vessels
Complete dissection.
Draw and annotate a picture of the heart.
Fill in types of blood vessels table
C- B
Explain what the pulse rate is and what blood pressure measurement tells us.
Answer questions on slide 28
A-A*
Analyse the correlation between lifestyle affects the risk of heart disease
Keywords
Ventricle
Atrium
Artery
Vein
Capillary
Starter: Why do we
need a heart? Explain your answer.

2. 13.2 The circulatory system
Topic overview
• The circulatory system:
- double circulation
- the heart
- blood vessels
- the blood

3. The heart = a muscular organ that pumps blood around the body
through repeated rhythmic contractions
We need blood circulation to
• move glucose and other nutrients, oxygen,
carbon dioxide, hormones and urea to and from cells
• help fight disease
• help stabilise body temperature
How often
does your
heart beat?

4. The structure of the heart
You have 5 minutes to copy the diagram. Think of a way in which to remember the names of the different structures.
The structure of the heart
aorta
pulmonary artery
pulmonary vein
valves
left atrium
vena cava
right atrium
Add arrows, colour code to show which are oxygenated blood and which are deoxygenated
left ventricle
right ventricle
cardiac muscle
thicker on left

5. The structure of the heart
to body and head
to the lungs
from the lungs
blood from
body + head
oxygenated blood
deoxygenated blood

6. The double circulation
lungs
pulmonary artery
pulmonary vein
heart
vena cava
aorta
body

7. The double circulation
Our circulatory system has
two transport systems:
• one transports blood from
heart to lungs and back to exchange
O2 and CO2 with air
• one transports blood from heart to
body and back to exchange O2 and
CO2 with body cells
lungs
heart
body

8. Questions…
Do all arteries carry oxygenated blood? Can you give an example?
Which side of the heart is the thickest and why?
What is the function of the heart valves?
Why is the human circulatory system often described as being a double circulatory system? What is the advantage of such a sytem?

9. A real heart…

10. Types of blood vessels- Fill this in
vessel type
artery
vein
capillary
Picture
Direction of blood flow
Blood pressure
Function

11. MID-LESSON PROGRESS CHECK
Heart and Pulse
MID-LESSON PROGRESS CHECK
Swap work with the person next to you.
Are they on track to meet their target?
Level
Objective
Outcome D
Describe the structure and function of the heart and blood vessels
Complete dissection.
Draw and annotate a picture of the heart.
Fill in types of blood vessels table
C- B
Explain what the pulse rate is and what blood pressure measurement tells us.
Answer questions on slide 28
A-A*
Analyse the correlation between lifestyle affects the risk of heart disease 11

12. Blood pressure HIGH pressure HIGH pressure How are arteries
adapted for
high pressure?
pulmonary artery
pulmonary vein
HIGH pressure
LOW pressure
vena cava
aorta
LOW pressure
HIGH pressure

13. Fit and healthy?
A normal pulse rate for a healthy adult, while resting, can range from 60 to 100 beats per minute (BPM), although well conditioned athletes may have a healthy pulse rate lower than 60 BPM.

14. Radial Pulse
Brachial pulse
Carotid pulse

15. Keeping your heart healthy
What factors contribute to an increased risk of heart disease?
In what ways can you reduce your risk of developing heart disease?
What is coronary heart disease?
Use the information on pages to help you.

16. of arteries contribute
Some questions…
What does pulse
rate measure?
What units do we
use to measure
heart rate?
How can you
measure heart
rate through the
skin?
Why does
narrowing
of arteries contribute
to increased
blood pressure?
Why are arteries
under higher
pressure
than veins?
Would insurance
companies insure
someone with
high blood pressure
and why?

17. Plenary: What have you learnt today?
Level
Objective
Outcome D
Describe the structure and function of the heart and blood vessels
Complete dissection.
Draw and annotate a picture of the heart.
Fill in types of blood vessels table
C- B
Explain what the pulse rate is and what blood pressure measurement tells us.
Answer questions on slide 28
A-A*
Analyse the correlation between lifestyle affects the risk of heart disease
Next lesson:
5 mins

18. Plenary 1
Starting from the left atrium, put the following in the correct order of circulation of the blood: C
aorta A
left atrium B
vena cava D
lungs E
pulmonary
artery I
left
ventricle F
right
ventricle H
right atrium G
pulmonary
vein

19. Plenary 2 Why is injuring Why do veins an artery more have valves?
dangerous
than injuring
a vein?
Why do arteries
have muscular
walls?
Why is no
body cell more
than 0.05 mm
away from a
capillary?
Why are
capillary walls
only
1 cell layer
thick?
Which artery is
the only one that
doesn’t
look bright red?