Public learning track
Human Circulatory and Gas Exchange Systems
9th Grade · Science · Open Global Science
8 lessons
Goal
Analyze the structural adaptations of the heart, blood vessels, blood components, and respiratory organs for mass transport and gas exchange.
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The Need for a Circulatory System in Active Animals
8 lessons
0 of 8 done
- 1The Need for a Circulatory System in Active AnimalsUp nextStart
- 2Heart Anatomy and Double Circulation PathwaysPremiumNot started yet
- 3The Cardiac Cycle: How the Heart Pumps BloodNot started yet
- 4Arteries, Veins, and Capillaries: Structure and FunctionNot started yet
- 5Composition of Blood: Plasma, Red Cells, White Cells, and PlateletsNot started yet
- 6Pulmonary Gas Exchange and Alveolar AdaptationsNot started yet
- 7Mechanics of Ventilation and Pulmonary MeasurementsNot started yet
- 8Planning an Investigation: Heart Rate Response to ExerciseNot started yet
Curriculum Framework
9th Grade · Science · Open Global Science
1
8 lessons
Plant Anatomy, Transport, and Physiological Responses
Explain plant tissue organization, vascular transport mechanisms, stomatal regulation, floral reproduction, and hormonal tropisms.
2
8 lessons
Human Circulatory and Gas Exchange Systems
Analyze the structural adaptations of the heart, blood vessels, blood components, and respiratory organs for mass transport and gas exchange.
3
7 lessons
Nervous Coordination and Reflex Mechanisms
Explain the cellular and physiological basis of nervous coordination, synaptic transmission, reflexive circuits, and autonomic regulation.
4
7 lessons
Endocrine Coordination and Homeostatic Regulation
Explain how hormones and negative feedback systems regulate blood glucose, metabolic rate, body temperature, and water balance.
5
6 lessons
Human Reproductive Physiology and Technologies
Describe the hormonal control of human reproduction, evaluate methods of contraception and assisted reproduction, and assess demographic impacts.
6
7 lessons
Pathogens, Immune Defenses, and Medical Interventions
Differentiate pathogen types and communicable vs. non-communicable diseases, explain immune defenses, and evaluate medical interventions including vaccines and antibiotics.