- pressor fibers
- 1. nerve fibers that, when stimulated reflexly, cause or increase vasomotor tone. 2. cardiac pressor f's.
Medical dictionary. 2011.
pressor fibers
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cardiac pressor fibers — sympathetic nerve fibers to the heart which when activated cause an increase in cardiac output … Medical dictionary
Pressor — Press or, a. (Physiol.) Causing, or giving rise to, pressure or to an increase of pressure; as, pressor nerve fibers, stimulation of which excites the vasomotor center, thus causing a stronger contraction of the arteries and consequently an… … The Collaborative International Dictionary of English
Pressor — Causing a rise in blood pressure. A pressor base is a substance (chemically classified as a base) capable of raising the blood pressure. A pressor nerve is a nerve that, when stimulated, increases the blood pressure. A pressor reflex is a nerve… … Medical dictionary
Fiber — The parts of plants that cannot be digested, namely complex carbohydrates. Also known as bulk or roughage. Complex carbohydrates from plants are rich in starch and fiber. Examples of plants that provide complex carbohydrates (fiber) are fresh… … Medical dictionary
substance — Stuff; material. SYN: substantia [TA], matter. [L. substantia, essence, material, fr. sub sto, to stand under, be present] alpha s. SYN: reticular s. (1). anterior perforated s. [TA] a region at the base … Medical dictionary
Nerve — A bundle of fibers that uses electrical and chemical signals to transmit sensory and motor information from one body part to another. See nervous system. * * * A whitish cordlike structure composed of one or more bundles (fascicles) of myelinated … Medical dictionary
Pain — This article is about physical pain. For pain in the broader sense, see Suffering. For other uses, see Pain (disambiguation). Pain A sports player in pain. ICD 10 R52 … Wikipedia
Nociceptor — A nociceptor is a sensory receptor that responds to potentially damaging stimuli by sending nerve signals to the spinal cord and brain. This process, called nociception, usually causes the perception of pain. Contents 1 History 2 Location 3… … Wikipedia
Neuralgia — Classification and external resources ICD 10 M79.2 ICD 9 729.2 … Wikipedia
Rostral ventrolateral medulla — Control of blood pressure is crucially dependent on the integrity of a small region of the brainstem called the ventrolateral medulla. Within this part of the brain are the cells that control the heart, blood vessels, swallowing, breathing and… … Wikipedia
