Human & Animal Physiology

• Choice chamber – taxis and kinesis in woodlice, maggots and fruit flies Biology · Human & Animal Physiology A virtual behaviour practical: put woodlice, blowfly maggots or fruit flies in a choice chamber or a T-maze with... Ages 16–17
• Homeostasis – blood glucose and body temperature Biology · Human & Animal Physiology Eat a meal and watch blood glucose change minute by minute. In a healthy person, glucose entering the blood raises... Ages 16–17
• Human ovulation cycle and plant double fertilization Biology · Human & Animal Physiology A 28-day cycle clock runs through in about ten seconds: four curves for FSH, LH, estrogen, and progesterone change... Ages 16–17
• Cardiac cycle – pressure, heart valves, ECG and control of heart rate Biology · Human & Animal Physiology A four-chamber heart beats in slow motion: the sinoatrial node (SAN) fires, the wave spreads over the atria, is... Ages 16–17
• Breathing mechanics, spirometry and gas exchange Biology · Human & Animal Physiology The diaphragm and intercostal muscles change the volume of the thorax, so the pressure in the lungs falls or rises... Ages 16–17
• Muscle contraction – the sliding filament model Biology · Human & Animal Physiology Watch a sarcomere contract by the sliding filament model: a nerve impulse reaches the neuromuscular junction, the... Ages 16–17
• Neuron resting and action potential Biology · Human & Animal Physiology A cross-section of the neuron membrane shows Na⁺ and K⁺ ions on both sides, Na⁺ channels, K⁺ channels and the Na⁺/K⁺... Ages 16–17
• Nervous control of heart rate and breathing – medulla, baroreceptors, chemoreceptors and the nervous system Biology · Human & Animal Physiology The medulla receives impulses from baroreceptors in the carotid sinus and aortic arch and from chemoreceptors in the... Ages 16–17
• Oxygen Dissociation Curve – Bohr Shift, Fetal Haemoglobin and Myoglobin Biology · Human & Animal Physiology Plot the percentage saturation of haemoglobin against pO₂ and read how much oxygen is unloaded between the lungs and... Ages 16–17
• Digestive system journey – enzymes, bile and absorption by villi Biology · Human & Animal Physiology Follow a meal from the mouth through the stomach and small intestine to the large intestine: mechanical digestion by... Ages 16–17
• Endocrine system – glands, hormones and feedback loops Biology · Human & Animal Physiology An endocrine map: tap the hypothalamus, pituitary, thyroid, adrenal glands, pancreas, ovaries or testes to see their... Ages 16–17
• The Eye and the Ear – Accommodation, Defects and Hearing Biology · Human & Animal Physiology A ray model of the eye: move the object near or far and watch the ciliary muscle, suspensory ligaments and lens... Ages 16–17
• Virtual dissection – heart, lungs, fish gills and a frog model Biology · Human & Animal Physiology A virtual dissection lab with textbook-style drawings. Complete a risk assessment, then cut a mammalian heart to... Ages 16–17
• Neuron – action potential and nerve impulse conduction Biology · Human & Animal Physiology Stimulate a neuron and watch the nerve impulse travel along the axon. Drag the circle to choose an observation... Ages 16–17
• Gametogenesis – spermatogenesis and oogenesis side by side Biology · Human & Animal Physiology A side-by-side timeline of spermatogenesis and oogenesis: spermatogonium, primary and secondary spermatocytes,... Ages 16–17
• Human Growth and Puberty – Life Stages, Growth Spurt and Growth Charts Biology · Human & Animal Physiology A timeline of life stages from zygote to old age with median height, mass and growth-velocity curves for girls and... Ages 16–17
• Comparative animal physiology – organ systems from Hydra to mammals Biology · Human & Animal Physiology Compare two animals side by side, one organ system at a time: gas exchange, circulation (open or closed, two-,... Ages 16–17
• Kidney, nephron and ADH – osmoregulation Biology · Human & Animal Physiology A nephron filters blood in the glomerulus, reabsorbs useful substances in the proximal convoluted tubule, builds a... Ages 16–17
• Blood components, clotting and blood groups – smear, cell count, transfusion, tissue fluid Biology · Human & Animal Physiology Six screens on blood. Smear: tap red cells, the five kinds of white cell, platelets and plasma to see their... Ages 13–14
• Reaction time – the ruler drop test Biology · Human & Animal Physiology Measure reaction time with the ruler drop test. Test yourself: the ruler is released at a random moment and you... Ages 16–17
• Human reproduction – fertilisation, pregnancy and the placenta Biology · Human & Animal Physiology Labelled diagrams of the female and male reproductive systems with a naming quiz, a timeline from fertilisation in... Ages 16–17
• Single and double circulation Biology · Human & Animal Physiology Compare the single circulatory system of fish side by side with the double circulatory system of mammals: blood... Ages 16–17
• Brain regions, brain mapping and plasticity – cortex, cerebellum, medulla, homunculus and LTP Biology · Human & Animal Physiology Tap a schematic brain, seen from the side or cut down the middle, to find the cerebral cortex areas (motor,... Ages 16–17
• Chemical synapse – transmission, summation and the effects of drugs Biology · Human & Animal Physiology Follow an impulse across a chemical synapse: an action potential reaches the presynaptic knob, Ca²⁺ channels open,... Ages 16–17
• Skeleton, joints and antagonistic muscles – elbow lever and range of motion Biology · Human & Animal Physiology Tap the bones of a human skeleton to see how they support the body, protect organs, allow movement and make blood... Ages 13–14

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