vivo.colostate.edu

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Definitions (455)

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homeostasis


Maintenance of a stable and balanced environment in the body. For example, calcium homeostasis refers to the mechanisms that keep concentrations of calcium within a "normal range" despite temporary excursions below and above.
Source: vivo.colostate.edu (offline)

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zona reaction


Changes in the zona pellucida that make it refractory to passage of sperm.
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a


abomasum The glandular stomach of ruminants such as cattle and sheep.
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cloaca


An expanded, tubular structure that serves as the common opening of the digestive, reproductive and urinary systems in many vertebrates, including birds.
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pathognomonic


A sign or set of symptoms that characterize a specific disease and allow good differentiation from other diseases.
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proventriculus


The glandular stomach of birds.
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rumination


A behavior in ruminants of regurgiting ingesta from the reticulorumen, followed by remastication and reswallowing; "cud chewing"
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submucosal plexus


A group of autonomic neurons in the enteric nervous system; also known as the plexus of Meissner.
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translocation


A chromosomal abnormality which occurs when chromosomes break and the fragments rejoin to other chromosomes.
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acinus


A small group of cells arranged in a "grape-like" cluster. A classical example is the arrangement of pancreatic exocrine cells, but the term is also applied to larger groups of cells, as in the liver.
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