target organ


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organ

 [or´gan]
accessory digestive o's (accessory o's of digestive system) organs and structures not part of the alimentary canal that aid in digestion; they include the teeth, salivary glands, liver, gallbladder, and pancreas.
organ of Corti the organ lying against the basilar membrane in the cochlear duct, containing special sensory receptors for hearing, and consisting of neuroepithelial hair cells and several types of supporting cells.
effector organ a muscle or gland that contracts or secretes, respectively, in direct response to nerve impulses.
enamel organ a process of epithelium forming a cap over a dental papilla and developing into the enamel.
end organ end-organ.
Golgi tendon organ any of the mechanoreceptors arranged in series with muscle in the tendons of mammalian muscles, being the receptor for stimuli responsible for the lengthening reaction.
sense o's (sensory o's) organs that receive stimuli that give rise to sensations, i.e., organs that translate certain forms of energy into nerve impulses that are perceived as special sensations.
spiral organ organ of Corti.
target organ the organ affected by a particular hormone.
vestigial organ an undeveloped organ that, in the embryo or in some remote ancestor, was well developed and functional.
o's of Zuckerkandl para-aortic bodies.

tar·get or·gan

a tissue or organ on which a hormone exerts its action; generally, a tissue or organ with appropriate receptors for a hormone.
Synonym(s): target (3)

target organ

1 an organ intended to receive a therapeutic dose of irradiation, such as the kidney when high-energy x-rays or gamma rays are beamed to the renal area for the treatment of a tumor.
2 an organ intended to receive the greatest concentration of a diagnostic radioactive tracer, such as the liver, which accumulates 99Tc sulfur colloid when it is injected intravenously to detect hepatic lesions.
3 an organ most affected by a specific hormone, such as the thyroid gland, which is the target organ of thyroid stimulating hormone secreted by the anterior pituitary gland.

target organ

Endocrinology A specific organ that a particular hormone affects

tar·get or·gan

(tahr'gĕt ōr'găn)
A tissue or organ on which a hormone exerts its action; generally, a tissue or organ with appropriate receptors for a hormone.
Synonym(s): target (3) .

target organ,

n the organ or body part whose activity levels demonstrate change in the course of biofeedback.

tar·get or·gan

(tahr'gĕt ōr'găn)
Tissue or organ on which a hormone exerts its action.

organ

a somewhat independent body part that performs a specific function or functions.

organ of Corti
the organ lying against the basilar membrane in the cochlear duct, containing special sensory receptors for hearing, and consisting of neuroepithelial hair cells and several types of supporting cells.
effector organ
a muscle or gland that contracts or secretes, respectively, in direct response to nerve impulses.
enamel organ
see enamel organ.
female reproductive organ
paired ovaries, uterine tubes, uterus, vagina and vulva.
genital organ
see penis, vulva, etc.
Golgi tendon organ
gustatory organ
taste bud.
gustus organ
see taste bud.
organ of Jacobson
see vomeronasal organ (below).
male reproductive organ
paired testes, gonadal duct systems (epididymis, ductus deferens), accessory glands, urethra, penis, prepuce and scrotum.
ocular organ
see eye.
olfactory organ
the organ of smell in the nasal mucosa consisting of specialized cells with a tuft of very fine processes protruding into the nasal cavity. Internally they communicate with the olfactory nerves which pass through the cribriform plate of the ethmoid bone to synapse with cells in the glomeruli of the olfactory bulb of the brain.
reproductive o's
those concerned with reproduction. See also penis, vulva, etc.
sense o's, sensory o's
organs that receive stimuli that give rise to sensations, i.e. organs that translate certain forms of energy into nerve impulses which are perceived as special sensations.
solid organ
any organ which does not contain a cavity or lumen and which is not gaseous; that is an organ which consists of parenchyma and stroma, the latter often arranged as trabeculae or surrounding groups of parenchymatous cells to provide support, e.g. liver, kidney.
spiral organ
organ of Corti.
spiral organ of the inner ear
the cochlea.
subfornical organ
a small tubercle in the floor of the third ventricle.
target organ
the organ affected by a particular hormone.
tubular organ
an organ characterized by the presence of a lumen and four concentric tunics in its wall; centrifugally the layers are mucosal, submucosal, muscular and adventitia-serosal.
urinary organ's
vascular organ of the lamina terminalis
in the wall of the third ventricle of the brain.
vestibulocochlear organ
the cochlear duct, semicircular canals, utricle and saccule that occupy the osseous labyrinth.
vestigial organ
an undeveloped organ that, in the embryo or in some remote ancestor, was well developed and functional.
vomeronasal organ
part of the olfactory sense system that consists of a pair of fleshy tubes found on the floor of the nasal cavity on either side of the nasal septum, supported by cartilage sleeve. Probably concerned with scenting and aftersmell of food.
References in periodicals archive ?
The significance of the findings may be an indication that children with raised blood pressure are prone to target organ changes as seen in adults.
One of the hallmarks of autoimmune diseases are the development of ectopic lymphoid follicles in the target organ such as the thyroid, gut, liver, lung, brain, salivary gland, kidney, lymph nodes, thymus and muscle.
Hypertensive target organ damage was defined as the detection of one or more of the following: left ventricular hypertrophy (LVH), the presence of hypertensive retinopathy Grades 3 and 4, impaired glomerular filtration rate or microalbuminuria, or a history of a stroke, as described in agreement with European Society of Hypertension-European Society of Cardiology guidelines from 2007.
Table I shows the demographic characteristics, diabetic control, reported adherence, target organ damage and drug usage differences between the study patients with and without executive impairment.
It is concluded that PO from Colpermin[R] is released to a significant extent in the lower digestive tract and in the colon, the target organ to exert antispasmodic effects.
According to the JNC-VI guidelines, women with high normal blood pressure or stage 1 hypertension (systolic 140-159 mm Hg; diastolic 90-99 mm Hg) can be managed through lifestyle changes alone, as long as they don't have target organ damage or diabetes.
The second is ethanol's direct tissue toxicity, both to the parent arteries and the target organs.
Biological monitoring of endocrine-disrupting pesticides and determination of their ability to produce genomic instability in the target organ should lead to a better understanding of how exposure to these chemicals may influence health.
Target organ damage often begins at blood pressures currently defined as the upper limit of normal -- a systolic pressure of 130 to 139 mmHg or a diastolic BP of 85 to 89 mm Hg (see Figure 1).
Then came Viagra, with celebrities like Hugh Hefner and Elizabeth Dole publicly gushing about its miraculous effect on the target organ.
With clinical correlative data these authors hypothesize, plausibly, mechanisms whereby morbidity (as defined by raised C-reactive protein) in old people is associated with slowed neuroleptic drug clearance, higher protein-bound levels and, more heretically, that these can lead to high target organ concentrations and pharmacodynamic differences.
Target organ damage resulting from hypertension includes those affecting the brain, heart, kidneys and the eyes.