C3.1 Integration of body systems Notes

C3.1.1 System integration

C3.1.2 Cells, tissues, organs and body systems

C3.1.3 Integration of organs in animal bodies

C3.1.4 The brain as a central information integration organ

C3.1.5 The spinal cord as an integrating centre for unconscious processes

C3.1.6 Input to the spinal cord and cerebral hemispheres through sensory neurons

C3.1.7 Output from the cerebral hemispheres to muscles through motor neurons

C3.1.8 Nerves as bundles of nerve fibres of both sensory and motor neurons

C3.1.9 Pain reflex arcs

C3.1.10 Role of the cerebellum in coordinating skeletal muscle contraction and balance

C3.1.11 Modulation of sleep patterns by melatonin secretion as a part of circadian rhythms

C3.1.12 Epinephrine (adrenaline) secretion by the adrenal glands

C3.1.13 Control of the endocrine system

C3.1.14 Feedback control of heart rate

C3.1.15 Feedback control of ventilation rate

C3.1.16 Control of peristalsis in the digestive system

C3.1.17 Observations of tropic responses in seedlings (HL)

C3.1.18 Positive phototropism (HL)

C3.1.19 Phytohormones (HL)

C3.1.20 Auxin efflux carriers (HL)

C3.1.21 Promotion of cell growth by auxin (HL)

C3.1.22 Interactions between auxin and cytokinin (HL)

C3.1.23—Positive feedback in fruit ripening and ethylene production (HL)