Advances in Comparative and Environmental Physiology: .15 Advances in Comparative and Environmental Physiology

1 Cellular Mechanisms of Salivary Gland Secretion.- 1 Introduction.- 2 Secretory Endpieces.- 3 Salivary Ducts.- References.- 2 Mechanism of Nematocyst Discharge and Its Cellular Control.- 1 Introduction.- 2 Hypotheses Regarding the Mechanism of Nematocyst Discharge.- 3 Role of Calcium in Nematocyst Discharge.- 4 Mechanics of Nematocyst Discharge.- 5 Biochemical Nature of the Capsule and Intracapsular Fluid.- 6 The Donnan Equilibrium and Ionic Mechanism of Nematocyst Discharge.- 7 Cellular Control of Nematocyst Discharge.- 8 Conclusions.- References.- 3 Physiological Adaptations in Decapodan Crustaceans for Life in Fresh Water.- 1 Introduction.- 2 Biogeography and Evolution of Freshwater Decapods.- 3 Physicochemical Challenges of Living in Fresh Water.- 4 Osmoregulation and Ionoregulation.- 5 Acid-Base Balance.- 6 Molting Physiology.- 7 Gas Exchange: Ventilation and Circulation.- 8 Aerial Exposure.- 9 Freshwater Challenges Attributable to Man.- References.- 4 Neurochemical Differences in Two Steroid-Sensitive Areas Mediating Reproductive Behaviors.- 1 Introduction.- 2 The Biochemistry of Testosterone Action in the Quail Brain.- 3 Steroid-Neurotransmitter Interactions in the POM and ICo.- 4 Discussion.- References.