region
[re´jun] a plane with more or less definite boundaries; called also
regio. adj.,
adj re´gional.
abdominal r's the areas into which the anterior surface of the abdomen is divided, including the epigastric, hypochondriac (right and left), iliac (right and left), lumbar (right and left), hypogastric, and umbilical.

Nine abdominopelvic regions. From Applegate, 2000.
See illustration.
AN region the area of the heart where the atrial fibers merge with the atrioventricular node.
facial region that comprising the various anatomical regions of the face, divided into
buccal (side of oral cavity),
infraorbital (below eye),
mental (chin),
nasal (nose),
oral (lips),
orbital (eye),
parotid (angle of jaw), and
zygomatic (cheek bone) regions.
H region the area of the bundle of His from its connection with the atrioventricular node to its branching portion.
homology r's looped structures, comprising approximately 100 amino acid residues and fastened by disulfide bonds, that show similarities in primary structure from one region to another. They represent the building blocks or units of immunoglobulin molecules.
hypochondriac region either of the abdominal regions that are in superior lateral locations, one on the left (
left hypochondriac region) and one on the right (
right hypochondriac region) of the
epigastric region; called also
hypochondrium.
I region that part of the major histocompatibility complex where immune response genes are present.
lateral region either of the abdominal regions that are in central lateral locations, one to the left (
left lateral region) and one to the right (
right lateral region) of the
umbilical region; called also
flank and
lumbar region.
lumbar region 1. the region of the back lying lateral to the lumbar vertebrae. See also
loin.
N region [nodal region] the region of the atrioventricular node consisting of the body of the node.
NH region [nodal-His region] the area where the atrioventricular node becomes the bundle of His.
precordial region the part of the anterior surface of the body covering the heart and the pit of the stomach.
urogenital region the part of the
perineal region that surrounds the external genital organs and the urethral orifice,
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
re·gion
(rē'jŭn), [TA] 2. A portion of the body having a special nervous or vascular supply, or a part of an organ having a special function.
See also:
area,
space,
spatium,
zone.
[L. regio]
Farlex Partner Medical Dictionary © Farlex 2012
region
(rē′jən)n. An area of the body having natural or arbitrarily assigned boundaries: the abdominal region.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
re·gion
(rē'jŭn) [TA] 1. An often arbitrarily limited portion of the surface of the body.
See also:
space,
zone 2. A portion of the body having a special nervous or vascular supply, or a part of an organ having a special function.
See also:
area,
space,
spatium,
zone Synonym(s):
regio [TA] .
[L. regio]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
region
(re'jon) [L. regio, boundary] A portion of the body with natural or arbitrary boundaries. Synonym: regioregional (-al), adjective


ABDOMINAL REGIONS
abdominal regions
The abdomen and its external surface, divided into nine regions by four imaginary planes: two horizontal, one at the level of the ninth costal cartilage (or the lowest point of the costal arch) and the other at the level of the highest point of the iliac crest; two vertical, through the centers of the inguinal ligaments (or through the nipples or through the centers of the clavicles) or curved and coinciding with the lateral borders of the two abdominal rectus muscles.
See: illustrationchest region
Any of the three areas of the chest: anterior, posterior, and lateral. The anterior divisions (right and left) are the clavicular, infraclavicular, and supraclavicular, the mammary and inframammary, and the upper and lower sternal. The posterior divisions (right and left) are the scapular, infrascapular, interscapular, and suprascapular. The lateral divisions are the axillary and infra-axillary.
hypochondriac region
Hypochondrium.hypogastric region
Hypogastrium.iliac region
The inguinal region on either side of the hypogastrium.
inguinal region
Groin.lumbar region
That area of the abdominal surface lateral to the umbilical region, above the iliac region, and below the hypochondriac region.
region of interest
Abbreviation: ROI
In radiology, the object of a study or a treatment designed to affect a limited part of the body.
parasternal region
The area between the sternal border and parasternal line.
sternomastoid region
The wide area on the lateral region of the neck covered by sternocleidomastoid muscle.
Medical Dictionary, © 2009 Farlex and Partners
re·gion
(rē'jŭn) [TA] 1. An often arbitrarily limited portion of a body surface.
2. Portion of body with special nervous or vascular supply, or organ part with special function.
See also:
area,
space,
zone [L. regio]
Medical Dictionary for the Dental Professions © Farlex 2012
Patient discussion about region
Q. Any idea on how to meet people who suffer from alcoolism in my region?
A. if you look for an AA meeting near your home- that should not be a problem- just "google" it. or ask your doctor to reffer you to the nearest clinic.
take care! and good for you on that big step!
Q. Is there any problem, if an arachnoid cyst ,2cmx1.5cm size, rostral to cerebellar region left untreated? symptoms: repeated headaches, twitching of muscles, tiredness
A. An arachnoid cyst that leads to symptoms usually needs treatment. Mild symptoms as you suggested are ok to left untreated however gradual onset of new symptoms may arise such as seizures, paralysis and other complications, therefore once symptoms occur one should consider treatment.
Q. experiencing sharp pain in my right kidney region... pain is acute and doesnt radiate... recently PE left lung have been taking warfrin, panadiene forte, two kinds of cholesterol/triglycerine reducing meds and champix quit smoking medication... recently tests showed the hight cholesterol and triglys' levels and also a swollen liver... pain is not in my liver area... past pain in this kidney recurrent but never as bad. always dull.. many years ago had a uti, which caused high protiene levels.. very bad at finishing anti-biotics... recently had tonsilitis.. This hurts and is tender to touch but does not bring on sharp pain when touched, sharp pain comes and goes after taking pain relief
A. Go to see a doctor - although its tempting to make the diagnosis over the net (I have several ideas about what it might be), it sounds like serious, especially if you had a PE lately - it could be a thrombus in the vein of the kidney, or maybe a stone (sounds like that according to the description of the pain). However, as I said, making the diagnosis without even seeing you isn't the wisest thing to do.
Take care,
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