By the end of the lesson you should be able to: Name the four chambers of the heart. State the position and purpose of the heart
valves. Name all the blood vessels associated with the
heart. Explain why one side of the heart is thicker than
the other. Describe the path of blood flow through the
heart and the blood vessels around it
The human heart is a very simple but very efficient _____ beating over 100000 times a day. The four chambers, four valves and various blood vessels transport _______ into and out of the heart
pump
blood
Your teacher will either demonstrate or show you a video of how to dissect a mammalian heart.
Try to identify the following structuresBlood vessels Chambers Valves
coronary right atrium semilunar
aorta left atrium atrioventricular
Vena cava right ventricle
Pulmonary artery
Pulmonary vein
left ventricle
Finds the answers to the following questions and record your answers in the results section
What is the hard cream coloured tissue on the surface of the heart?
What colour is the tissue which makes up the walls of the heart.
How many times thicker is the wall of the left ventricle than the right ventricle.
Where are the coronary blood vessels? What is the name of the blood vessel with
the thickest wall? Which type of blood vessel has an elastic
wall? How would you describe the heart valves? What holds the valves open?
The hard cream coloured tissue on the surface of the heart is ___
The colour of the tissue which makes up the walls of the heart is _____
The wall of the ventricle is ________times thicker than the right ventricle
The coronary blood vessels are _____________ The blood vessel with the thickest wall is
called the ____________ The type of blood vessel with an elastic wall
is an ____________ Heart valves are ___________________ The heart valves are
_________________________
Observations
FAT
red2 to 3
On the surface of the heart
Aorta
Arterythin flaps of tissueheld open by
tendons
What is seen and done in this experiment?
Structure of a mammalian heart are observed, identified and described