Title: Heart Dissection
Unscramble the heart
keywords.
Then decode the message at
the bottom to find out an
interesting fact about the heart!
https://www.youtube.com/watch?v=p-wilmN80XE
Heart Dissection
1. Identify key structures of a
heart
2. Describe what tissues make
up the heart
3. Explain how the heart is
adapted for its function
Lab Safety
•
•
•
•
Anyone allergic to anything?
Wear g_________
and safety glasses
loves
hands thoroughly after dissection
Wash ________
Antibacterial spray
Use ______________________on
desk after
working
• No messing about!
sharp
• Scalpels can be ___________
and dangerous so
be careful….
disinfectant
• All used implements to go in _____________.
Challenge 1: Identify the external
structure
1. Left Ventricle
2. Right Ventricle
4. Right Atrium
5. Left Atrium
6. Pulmonary Artery
7. Pulmonary Vein
8. Aorta
9. Vena Cava
Use flags to mark our key structures
Challenge 2: Investigate blood flow using
water
Put in water in one vessel.....where does it come
out?!
Make a note of it in your book
Challenge 3: Start cutting....careful
The incision is across the ventricles,
cutting the heart horizontally.
Can you see:
•The heart strings
•The valves
•The septum
•Coronary arteries
Challenge 4: Investigation Ventricles!
Find out the width of the ventricular walls.... Are
they the same?
– Measure lots of different points and find an
average to make it reliable
Width of wall (mm)
Left
ventricle
Right
Ventricle
Average
Challenge 5: Explore!
How many different tissues can you find inside
the heart?
Separate out the different tissue types and label
them on a A3 piece of paper
Describe how the structure of the heart
helps it pump blood around the body
effectively (6 marks)
3 marks for specific structures
3 marks for how they help
Describe how the structure of the heart
helps it pump blood around the body
effectively (6 marks)
1. Valves-to stop blood flowing backwards
2. Left ventricle wider than right ventricle as
pumping to body vs. lungs
3. Made of muscle-to pump blood
4. Coronary arteries- to supply blood to heart
muscle
Can you...?
1. Label a diagram of a heart
2. Identify different tissues that the heart
3. Explain why each tissue is needed
4. Explain key adaptations of the heart