Human Physiology resources
Biology, grade 12. Notes, worksheets, videos, interactive tools and revision materials for this chapter.
Notes
Study notes
The chapter's lessons are the notes — read them in order, then use the resources below.
01Neurones and SynapsesTrace nerve impulses along neurones and across synapses in detail.Read lesson →02The Reflex ArcMap the five stages of a spinal reflex and explain why speed matters.Read lesson →03Hormonal ControlCompare nervous and hormonal control and explore the glands of the endocrine system.Read lesson →04Homeostasis: Blood GlucoseExplain the negative-feedback control of blood glucose by insulin and glucagon.Read lesson →
Worksheets
Practice worksheet
Attempt every question before revealing the answer — that struggle is where learning happens.
Practice questions live inside each lesson — work through them there, then return for revision.
Videos
Watch and learn
Hand-picked searches to find a clear video explanation of each lesson.
Revision
Revision checklist
Can you explain each of these out loud, without looking? If not, re-read that lesson.
- Neurones and Synapses: Trace nerve impulses along neurones and across synapses in detail.
- The Reflex Arc: Map the five stages of a spinal reflex and explain why speed matters.
- Hormonal Control: Compare nervous and hormonal control and explore the glands of the endocrine system.
- Homeostasis: Blood Glucose: Explain the negative-feedback control of blood glucose by insulin and glucagon.
- Read each lesson's summary and re-do its practice questions from memory.