Mindblown: a blog about philosophy.
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Excitatory impulse
A nerve signal that increases the activity of target cells, organs, or tissues.
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Enteroceptive impulse
An afferent nerve impulse arising from stimuli originating in receptors located in internal organs.
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Ectopic impulse
A cardiac impulse arising in some part of the heart other than the sinoatrial node.
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Cardiac impulse
The heartbeat felt through the chest wall overlying the apex of the heart.
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Improvised explosive device
Military jargon for a detonatable bomb or land mine.
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Imprint cytology
The study of cellular morphology or of tissue diseases after a clinical specimen, e.g., a bone marrow biopsy, is dabbed on a microscope slide. It is used in some settings as an adjunct or alternative to fine needle aspiration biopsy, frozen sectioning, and other pathological techniques.
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Polysulfide impression material
An elastic final dental impression used to construct restorations, prosthetics, and appliances, which is made from a paste composed of polysulfide polymer, filler, sulfur, plasticizer, and an accelerator paste containing lead dioxide (which causes it to turn dark-brown).
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Polyether impression material
The stiffest of the dental final impression materials, used to construct restorations, prosthetics, and other appliances. It is made from a base containing a polyether polymer, silica, filler, and plasticizer, and an accelerator, made of an alkylaromatic sulfonate, filler, and plasticizer.
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Partial dental impression
A negative impression of a portion of the maxilla or mandible where teeth were previously present.
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Condensation silicone impression material
An elastic final impression material used to construct dental cast restorations, prostheses, and appliances. It is made of two pastes containing siloxane and stannous octoate and has a limited shelf life.
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