A Level Biology Revision Lesson 138: The Heart Valves

Task 1. Check Where this Lesson fits into your Exam Specification!

Task 2. Watch the Revision Notes Lesson in Full.

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Check Your Spec!

AQA A Level Biology Specification Reference: - The gross structure of the human heart. Pressure and volume changes and associated valve movements during the cardiac cycle that maintain a unidirectional flow of blood.

 

CIE A Level Biology Specification Reference: - 8.2 The heart The mammalian heart is a double pump: the right side pumps blood at low pressure to the lungs and the left side pumps blood at high pressure to the rest of the body. a) describe the external and internal structure of the mammalian heart.

Edexcel A Level Biology (Biology A – Salters-Nuffield) Specification Reference: - Topic 1: Lifestyle, Health and Risk. 1.4 i) Know the cardiac cycle (atrial systole, ventricular systole and cardiac diastole) and relate the structure and operation of the mammalian heart, including the major blood vessels, to its function. ii) Know how the relationship between heart structure and function can be investigated practically.

 

Edexcel A Level Biology (Biology B) Specification Reference: - Topic 4: Exchange and Transport. 4.4 Circulation i) Know the structure of the heart, arteries, veins and capillaries. ii) Understand the advantages of a double circulatory system in mammals. iii) Know the sequence of events of the cardiac cycle.

 

OCR A Level Biology (Biology A) Specification Reference: - 3.1.2 Transport in animals. Learners should be able to demonstrate and apply their knowledge and understanding of: the need for transport systems in multicellular animals. The different types of circulatory systems. To include single, double, open and closed

circulatory systems in insects, fish and mammals. The structure and functions of arteries, arterioles, capillaries, venules and veins. The external and internal structure of the mammalian heart. The dissection, examination and drawing of the external and internal structure of the mammalian heart. The cardiac cycle: To include the role of the valves and the pressure changes occurring in the heart and associated vessels.

 

OCR A Level Biology (Biology B) Specification Reference: - 2.2.2 Transport systems in mammals: Learners should be able to demonstrate and apply their knowledge and understanding of: The external and internal structure of the mammalian heart. The importance of the closed double circulatory system. the structure and functions of arteries, arterioles, capillaries, venules and veins. transverse sections of arteries, veins and capillaries as observed using a light microscope.

 

WJEC A Level Biology Specification Reference: -Requirements for Life: 2. Adaptations for transport. Learners should be able to demonstrate and apply their knowledge and understanding of: Mammal double circulatory system. (b) the mammalian circulatory system including the structure and function of heart and blood vessels and the names of the main blood vessels associated with the human heart. The cardiac cycle and the maintenance of circulation to include graphical analysis of pressure changes.

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