internal environment

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internal environment

the medium in which all body cells are bathed and which maintains a constant environment (see HOMEOSTASIS), in terms of pH, osmotic pressure, etc.


situated or occurring within or on the inside; in anatomy, many structures formerly called internal are now termed medial.

internal abdominal abscess
see retroperitoneal abscess.
internal carotid artery arteritis
parasitic arteritis of the external carotid artery as it courses around the edge of the guttural pouch may lead to copious nasal bleeding in horses when the artery ruptures.
internal elastic membrane
a condensation of elastic fibers separating the tunica intima from the tunica media.
internal environment
within the animal; includes blood pressure, circulating blood volume, tissue fluid volume, blood sugar level, tidal air volume, glomerular filtration rate.
internal fixation
immobilization of fractured bones by internal appliances as distinct from casts or external fixation. Includes intramedullary pins which run the length of the medullary cavity, transfixing pins that penetrate across the medullary cavity and are maintained in position by external bars or casts, and compression plating based on the use of special screws and plates.
internal hernia
see hernia.
internal inguinal ring
see abdominal ring (internal).
internal layer
unshelled eggs are free in the peritoneal cavity, thought to have been delivered there by reverse peristalsis in the oviduct.
internal laying
eggs are deposited in the peritoneal cavity and become walled off.
internal limiting membrane
a persistent fibrillar condensation of the vitreous body of the eye; it covers the retina and ciliary body.
internal parasitic mites
poultry cutaneous mites in a number of families are found in the trachea, air sacs and subcutaneous tissues. Includes Cytodites, Epidermoptes, Laminosioptes, Pneumonyssus, Rivoltsia and Sternastoma spp.
internal rate of return
the interest rate needed to discount future income in order to equate it with the present investment in a program.
internal repeat
repetitive base sequences within DNA which may be inverted (indirect) or non-inverted (direct).
internal root sheath
connective tissue sheath around the hair follicle; this part of the sheath extends only to the opening of sebaceous glands into the follicle. See also root sheath cuticle.
turkey internal hemorrhage
see dissecting aneurysm.
internal vomiting
any reflux of intestinal contents which does not reach the mouth, e.g. abomasal reflux into the rumenoreticulum.
References in periodicals archive ?
Firm's culture in the first rank, firm's vision and mission in the second, internal environment in the third rank, management attitudes in the forth rank and employees' perceptions is last rank.
The internal environment component captures the traditional idea of the "tone at the top," but it includes much more, such as risk consciousness, risk appetite, risk philosophy, and board oversight.
Kenner brings together some important information in this discussion so that we have a greater understanding of how our internal environment can help or hinder healing.
As these individuals lose the capacity to maintain stable, optimal internal environments (i.
One essential requirement for any product developer is to understand how these factors are themselves influenced by the chemical and physical changes that can occur during storage, and how these are influenced by the internal environment created by the packaging system and the external environment in which the food is stored.
Realizing that recruitment and hiring of staff is only one part of the problem, we are also focusing on our internal environment.
Her mission: teach homeostasis, the body's remarkable, but often taken-for-granted ability to maintain a stable internal environment despite the wildly fluctuating conditions we expose it to, from soccer games to mountain climbing.
The nonsmoking, clean, well-ventilated and well-lit foundry was not only designed to advance the internal environment.
The changes ushered in by community-oriented policing require agency executives to examine not only the new external environment created by COP but also the new internal environment.
When a male starts introducing extra testosterone into this body, his internal regulatory system will reduce its own production in order to maintain a stable internal environment.
In terms of the library's internal environment, a profile of strengths and limitations should be made - including the library's planning objectives, strategies, activities, and resources (human, fiscal, and physical).
The two possible common factors that allowed for continued normal brain function for these historical figures were the inheritance of good genes and the provision of an optimum internal environment.