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Principles of the Ultrasound-Guided Procedures
Ultrasound-guided procedures are used every day in equine practice around the world. Sadly, an important number of these procedures are not done...
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Placentation and Placenta
Gestation in the vizcacha lasts approximately 153 days. At 26–32 days post-coitus (dpc), extensions of the trophoblast invading the decidua are...
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Plains Vizcacha Endoparasites: An Exploration of Diversity, Health and Ecology
Parasites are an integral part of all ecosystems and have gained wide acceptance as biological tags since they can provide important information...
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Post-implantation Embryo Development in the South American Plains Vizcacha, Lagostomus maximus (Rodentia, Caviomorpha)
The early embryo development after implantation varies among mammals. In muroid rodents, an egg cylinder is formed by folding during gastrulation;...
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From Pest to Vulnerable Species: Combining Ecological and Behavioural Knowledge for the Conservation and Management of Lagostomus maximus
Despite being a native herbivore, in 1905, the plains vizcacha was declared a plague for agriculture by the Argentinean government. Since then,...
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Chancy History of a Supposedly Vanished South American Rodent, Lagostomus crassus, with Remarks on Recent Extinctions in Caviomorphs
Lagostomus crassus is a chinchillid rodent exclusively based in an isolated cranium exhumed near Cusco, Peru, by Jan Kalinowski. Although...
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Pan-Chinchillidae, a Once Diverse Clade
Pan-Chinchillidae is a clade of caviomorph rodents that includes extant chinchillas (Chinchilla spp.) and mountain vizcachas (Lagidium spp.) within...
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Use of the Plains Vizcacha (Lagostomus maximus) by Indigenous Societies in the Pampas Ecoregion (Argentina)
This chapter reviews the plains vizcacha (Lagostomus maximus) bone record from archaeological sites in the Pampas ecoregion. Information from 82...
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Neuroanatomy and Brain Histological Atlas of the South American Plains Vizcacha
Brains could be classified as lissencephalic or gyrencephalic according to the presence of sulci and gyri. In recent years, studies of the physiology...
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Morphophysiology of the Female Reproductive System
The organs of the vizcacha’s reproductive system are like those of other eutherian mammals. However, some organs exhibit species-specific...
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Lecture 4: Thermoregulation and Homeostasis
Skin temp may be 32 °C when room temp is 24 °C. Body core is maintained at ~37 °C (36.5–37.5), 0.4 °C less if measured orally. Why do you think that...
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Lectures 25 and 26: Reproductive System
The purpose of sexual reproduction is to produce offspring that are genetically different from their parents. This production of genetic diversity...
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Adaptations of the Maternal Brain to Meet the Increased Energy Demands of Pregnancy and Lactation
In adult mammals, peripheral signals of energy balance act on central circuits to match energy intake with energy expenditure. The unique metabolic...
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Maternal Recognition of Pregnancy
Hormone-induced adaptations occur in many aspects of maternal physiology during gestation. Before these changes can be initiated, the newly formed...
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Regulation of the Hypothalamo-Pituitary-Adrenal Axis in Pregnancy and Lactation
Physiological and behavioural responses to stress are critical to ensure individual survival in all species. This is even more important when the...
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Neuroendocrinology of Perinatal Mental Illness
Mental illness during pregnancy and the postpartum period is a growing health crisis. We know that at least 1 in 7 women during the perinatal...
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Parathyroid Glands, Vitamin D, Calcium Metabolism and The Bone
In this chapter, the hormones regulating calcium metabolism and their diseases are discussed. First the functioning of the parathyroid glands and...
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Neuroendocrine Tumors and Associated Syndromes
The neuroendocrine system is comprised of neuroendocrine organs and dispersed neuroendocrine cells in the body.
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Diseases of the Pituitary Gland, Master Regulator of Endocrine Organs
The pituitary gland is as small as a pea, but despite its small size it is the master regulator of the endocrine system. It is found at the base of...
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Small Intestine
This chapter discusses about the development, motility, secretion of small intestine, and its neurohormonal control. Macro and micronutrient...