What you’ll learn12 learning objectivesChoose one objective for a focused lesson, or study the complete topic.15.1.1Endocrine system features• Endocrine system features: ADH, glucagon, insulinSyllabus objective15.1.2Nervous and endocrine systems• Compare nervous system and endocrine systemSyllabus objective15.1.3Sensory, motor and intermediate neurones• Sensory neurone and motor neurone structure and function; intermediate neuronesSyllabus objective15.1.4Sensory receptor cells• Sensory receptor cells: detect stimuli, stimulate impulse transmissionSyllabus objective15.1.5Action potential sequence• Action potential sequence in sensory neurone using taste bud chemoreceptor exampleSyllabus objective15.1.6Membrane potential changes• Membrane potential changes:- Resting potential maintenance- Action potential events- Resting potential restoration during refractory periodSyllabus objective15.1.7Rapid transmission in myelinated neurone• Rapid transmission in myelinated neurone: saltatory conductionSyllabus objective15.1.8Refractory period• Refractory period importance in determining impulse frequencySyllabus objective15.1.9Cholinergic synapse structure and function• Cholinergic synapse structure and function: calcium ion roleSyllabus objective15.1.10Muscle contraction stimulation• Neuromuscular junctions, T-tubule system, sarcoplasmic reticulum in stimulating contractionSyllabus objective15.1.11Striated muscle ultrastructure• Striated muscle ultrastructure: sarcomere structureSyllabus objective15.1.12Sliding filament model of contraction• Sliding filament model of contraction: roles of troponin, tropomyosin, calcium ions, ATPSyllabus objective