Understanding the Cardiovascular System: Structure, Function, and Key Concepts, Study notes of Cardiology

Download Understanding the Cardiovascular System: Structure, Function, and Key Concepts and more Study notes Cardiology in PDF only on Docsity!

T HE CARDIVASCULAR SYSTEM

Structure and Function

L EARNING OBJECTIVE

 To develop our understanding of the structure and function of the cardiovascular system through perserverance  5-I can name the 2 types of systems that make up the double circulatory system. I can name the major organs and vessels involved.  6-7- All of the above, and I can remember most of the pathway of blood through the double circulatory system, the role of the different vessels and define Heart Rate, Stroke volume and Cardiac Output  8-9-As above-I remember the full pathway of blood through the double circulatory system. I understand the relationship between Heart rate, stroke volume and cardiac output and how it can be affected during sport.

T HE DOUBLE CIRCULATORY SYSTEM

 Using the video I need, what is the following?

1. Deoxygenated blood?
2. Oxygenated blood?
3. Where does the heart pump blood to?

http://www.bbc.co.uk/schools/gcsebitesize/science/a dd_edexcel/common_systems/bloodrev3.shtml

T HE HEART

T HE DOUBLE CIRCULATORY SYSTEM

SIMPLIFIED

C ARDIOVASCULAR SYSTEM

 Cardio-heart

 Vascular-circulatory network of blood vessels.

 Essential for the transportation of material around the body.

 What materials are these?

 Oxygen and Carbon dioxide

B LOOD V ESSELS-AVC

 Arteries: carry blood at high pressure away heart to the body tissues. Contain thick layers of muscle

 Veins: carries blood at low pressure to the heart. Less thicker compared to arteries, contain pocket valves to prevent backflow.

 Capillaries: allows nutrients and waste products to pass throw them. Single layer of cells in walls (thin)

MINI PLENARY

 What part of the outcomes can you confidently say you can tick off now?  Which ones are you unsure about?  5-I can name the 2 types of systems that make up the double circulatory system. I can name the major organs and vessels involved.  6-7- All of the above, and I can remember most of the pathway of blood through the double circulatory system, the role of the different vessels and define Heart Rate, Stroke volume and Cardiac Output  8-9-As above-I remember the full pathway of blood through the double circulatory system. I understand the relationship between Heart rate, stroke volume and cardiac output and how it can be affected during sport.

V ALVES

 Atrioventricular Valves: all valves between Atria and Ventricles.

1. Tricupspid valve: between right ventricle and right atrium 2. Biscupid Valve : between left atrium and ventricle. 3. Aortic Valve : between left ventricle and aorta 4. Pulmonary Valve : between right ventricle and pulmonary artery. 5. Semilunar Valves : collective term for aortic and pulmonary valves 6. Extension: what ways can you think that could make it easy for you to remember  Tricupspid: remember it involves right  Biscupid: remember involves left  Aortic: involves aorta  Pulmonary: involves pulmonary artery  Semilunar: everything

HEART RATE

 Heart rate: beats per minute (bpm)

 The average resting heart rate is 75bpm.

 Max Heart rate= 120-AGE

 Find your pulse and we will all now take our heart rates.

 EXTENSION QUESTION

 What will happen to your heart rate when you exercise and why?

C ARDIAC OUTPUT

 Blood ejected from the left ventricle in one minute.

 Cardiac output (q)= Stroke Volume (SV) x Heart Rate (HR)

 Measurement is litres/min

P LENARY - WHERE ARE YOU NOW?

 5-I can name the 2 types of systems that make up the double circulatory system. I can name the major organs and vessels involved.

 6-7- All of the above, and I can remember most of the pathway of blood through the double circulatory system, the role of the different vessels and define Heart Rate, Stroke volume and Cardiac Output

 8-9-As above-I remember the full pathway of blood through the double circulatory system. I understand the relationship between Heart rate, stroke volume and cardiac output and how it can be affected during sport.