(Encyclopedia) rickets or rachitisricketsrəkīˈtĭs [key], bone disease caused by a deficiency of vitamin D or calcium. Essential in regulating calcium and phosphorus absorption by the body, vitamin D…
ThyroidAnatomy and PhysiologyHormonesFeedback: Not Just for GuitarsHow Hormones WorkHypothalamus: The Head HonchoPituitary: The First LieutenantThyroidKidneys: Not Just for Urine!Pancreas and…
PterodactylusFossilized Pterodactylus featuresPterodactylus profileFlamboyant headsPelican – the modern fish grabberSoaring high above the land-living dinosaurs were the pterosaurs, which means “…
(Encyclopedia) leukemialeukemial&oomacr;kēˈmēə [key], cancerous disorder of the blood-forming tissues (bone marrow, lymphatics, liver, spleen) characterized by excessive production of immature or…
(Encyclopedia) MacEwen, Sir WilliamMacEwen, Sir Williamməky&oomacr;ˈən [key], 1848–1924, Scottish surgeon. A professor of surgery at the Univ. of Glasgow, he was noted for his work on bone…
(Encyclopedia) lumpy jaw, infectious disease of cattle and swine caused by the bacterium Actinomyces bovis. It is characterized by an infection of the bone of the head, particularly the mandible and…
(Encyclopedia) Flourens, Pierre (Marie Jean Pierre Flourens)Flourens, Pierrepyĕr fl&oomacr;räNsˈ [key], 1794–1867, French physiologist. He demonstrated the respiratory center in the medulla and…
(Encyclopedia) cartilagecartilagekärˈtəlĭj [key], flexible semiopaque connective tissue without blood vessels or nerve cells. It forms part of the skeletal system in humans and in other vertebrates,…
The Nose KnowsAnatomy and PhysiologyThe SensesWindows to the SoulCan You Hear Me Now?The Nose KnowsDon't Be So Touchy! The sense of smell is perhaps one of the most ancient of senses. The ability…
Cells, Bells!Anatomy and PhysiologyThe Circulatory SystemCells, Bells!Blood Types and GeneticsNow I Know My WBCs My first introduction to white blood cells was that old sci-fi classic, Fantastic…
