Bio Sept 4 No. 2 PDF

The circulatory system Monday, 02 September 2024 Learning outcomes: ✔ To identify the organs of the circulatory system (Grade C) ✔ Describe the function of each organ in the system (B, B+). ✔ Recognise the different sections of the heart (A A+ A*) Key words: Atria, ve...

The circulatory system Monday, 02 September 2024 Learning outcomes: ✔ To identify the organs of the circulatory system (Grade C) ✔ Describe the function of each organ in the system (B, B+). ✔ Recognise the different sections of the heart (A A+ A*) Key words: Atria, ventricles, arteries, veins, capillaries Starter 1. Where do these items go when we eat them? 2. How do they move around our body? 3. Why are they needed? LO: To identify the organs of the circulatory system (Level 3) Why the Circulatory System is Important The dissolved food and oxygen needed for respiration are carried around the body by the circulatory system.  Organs of the Circulatory system The human circulatory system consists of the heart which acts as a pump, and the blood vessels in which the blood flows. Three types of Blood Vessels: Arteries in which blood flows away from the heart; Veins in which blood flows back to the heart. Capillaries which surround the organs of the body and gas exchange takes place within them. LO: To identify the organs of the circulatory system (Grade C) Describe the function of each organ in the system (Grade B) The organs of the Circulatory system LO: To identify the organs of the circulatory system (Level 3)  Two types of blood The circulatory system carries two types of blood: Deoxygenated Oxygenated blood blood blood travelling blood travelling away from the body c to the body cells cells high oxygen content low oxygen content low carbon dioxide high carbon dioxide content content The arrangement of the circulatory system means that these two types of blood do not mix.  Work as a group Stick this worksheet in your notebook. Use a pencil to label the organs. Arteries take blood to the heart. Look at the arrows. Which blood vessels are arteries? Label them A What is the name of the blood vessel that takes blood away from the heart? Label it. LO: To identify the organs of the circulatory system (Level 3)  Blood picks up oxygen from the lungs and gives out carbon dioxide Blood travels lungs Oxygenated blood travels from the heart to back to the the lungs heart Oxygenated Deoxygenated blood travels blood travels from from the heart to the body to the the body heart body cells LO; Describe the Body cells use oxygen and function of each organ in give blood carbon dioxide. the system Work as a group Stick this worksheet in your notebook. Use a pencil to label the organs. Veins take blood to the heart. Look at the arrows. Which blood vessels are arteries? Label them A What is the name of the blood vessel that takes blood away from the heart? Label it. Colour the vessels appropriately LO: To identify the organs of the circulatory system (Level 3)  L O RAG Quiz Q1) What liquid carries oxygen around the body? Q2) What waste gas is returned to the lungs via the blood? Q3) What else is carried in the blood? Q4) Is the heart an organ, a tissue or a cell? An actual Human Heart looks like this: LO: Recognise the different sections of the heart Label the heart LO: Recognise the different sections of the heart Watch the video As the video is being shown fill in the worksheet provided. You can discuss with a partner on your table. You can discuss with a partner https://www.youtube.com/watch? 1.The circulatory system is made up of the v=rnIUFrx0DjI __________, _________ and blood vessels. 2. The heart is an _______ – different tissues working together. 3. Why is the human circulation system said to be double circulation _________________________________ _____________________________ 4. _________ prevents the blood flowing back. From the Body to the lungs 5. What does the blood carry? From the lungs to the body 6. Explain why we need the nutrients LO: To explain the structure and role of carried in the blood the heart in the circulatory system.  The journey of blood around the body Humans have a double circulatory system. This means blood flows through the heart twice per 1 circuit of the body. Follow the success criteria to label the journey of blood around the body. Level Have you? C Labelled the: body, lungs and heart LO: To explain the structure and role B Labelled the 4 chambers of the heart of the heart in the B+ Coloured coded where blood is oxygenated and circulatory system. deoxygenated in the circulatory system. A Explained what is carried in the blood. A* Explained why we need the nutrients the blood is carrying. What level would you award yourself? Level Have you? C Labelled the: body, lungs and heart B Labelled the 4 chambers of the heart A Colour coded where blood is oxygenated and deoxygenated in the circulatory system. A+ Explained what is carried in the blood. A* Explained why we need the nutrients the blood is carrying. Plenary: RAG Quiz Q1) What liquid carries oxygen around the body? Q2) What waste gas is returned to the lungs via the blood? Q3) How many chambers does the heart have? Q4) What are the chambers called? Q5) What else is carried in the blood? Q6) Is the heart an organ, a tissue or a cell? Q7) Why is it called a double circulatory system?