REGION 



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REGION 



Region [re'-jun) \regio, a region]. One of the arti- 

 ficial and conventional divisions of the body, as the 

 Abdominal R. See Abdomen, and Pectoral R. R., 

 Acromial, the parts near the acromion. R., Anal, 

 pertaining to the anus. R., Aulic, the area about 

 the aula. R., Auricular, the parts near the ear. R., 

 Axillary, a region upon the lateral aspect of the thorax, 

 extending from the axilla to a line drawn from the 

 lower border of the mammary region to that of the 

 scapular region. R., Basilar, the region at the base 

 of the skull. R., Brachial, the region of the arms. 

 R. of Broca, the third left frontal convolution of 

 the brain. R., Central Gray, the medullary substance 

 of the cerebellar hemispheres. R., Cervical, the 

 parts around the 

 neck. R., Cil- 

 iary. I. The 

 zone of the eye- 

 ball in which the 

 ciliary body is 

 situated. 2. The 

 part of the eye- 

 1 i d containing 

 the cilia. R., 

 Clavicular, the 

 area about the 

 clavicle. R., 

 Costal, the 

 lateral chest- 

 area. R., Dia- 

 phragmatic, the 

 region of the 

 diaphragm. R., 

 Epicranial, the 

 region above the 

 cranium. R., 

 Epigastric, the 

 region over the 

 stomach bound- 

 ed laterally by 

 two vertical lines 

 passing through 

 the middle of 

 Pqupart's liga- 

 ment ; above by 

 a horizontal line 

 touching the 

 lower margin of 

 the sternum, and 

 below by a hori- 

 zontal line touch- 

 ing the lowest 

 part, of the 

 thorax, and in- 

 cluding the py- 

 loric end and 

 middle of stomach, the left lobe of the liver, the 

 lobulus spigelii, the pancreas, the duodenum, parts of 

 the kidneys, the aorta, vena cava, thoracic duct, semi- 

 lunar ganglia. R., Femoral, the parts about the femur. 

 R., Fibular, the parts about the fibula. R., Gastric, 

 the region over the stomach. R., Gluteal, the 

 region of the gluteus muscle. R., Groin, the region 

 of the groin. R., Gustatory, the tips, margins, and 

 root of the tongue in the neighborhood of the circum- 

 vallate papillte ; also the lateral parts of the soft palate 

 and the anterior surface of the anterior pillars of the 

 fauces. R., Humeral, the parts about the hu- 

 merus. R., Hyo-mental. See R. , Supra-hyoid. 

 R., Hyo-sternal. See R., Infra -hyoid. R., Hypo- 

 chondriac, the region that joins the epigastric re- 

 gion laterally. The right hypochondriac region in- 



cludes the surface of the abdomen covering the right 

 lobe of the liver, the gall-bladder, the hepatic flexure 

 of the colon, and part of the right kidney; the left 

 that covering the spleen, the splenic end of the stom- 

 ach, the extremity of the pancreas, the splenic flexure 

 of the colon, and part of the left kidney. R., Hypo- 

 gastric, that part of the abdominal surface between 

 a horizontal line drawn through the anterior superior 

 crests of the ilia above and on either side by vertical 

 lines drawn through the center of Poupart's ligament. 

 It overlies the small intestines, the bladder in children 

 and in adults when distended, the uterus during preg- 

 nancy, sometimes the vermiform appendix, the cecum, 

 and the sigmoid flexure of the colon. R., Iliac, the 



Supraclavicular region. 2. Clavicular region. 3. Mammary region. 4. Epigastric region. 5. I'mbil- 



ical region, 

 ac region. 



6. Hypogastric region, 

 Lumbar region. 



7. Axillary region. 

 Inguinal region. 



8. Infra-axillary region. 9. Hypochondria 



region of the ilium. See also A'. , Inguinal. R., Ilio- 

 inguinal, the iliac region and the groin conjointly. 

 R., Inferior Sternal, the space corresponding to tin 

 part of the sternum below the lower margin ol the 

 third costal cartilages. R., Infra-axillary, 1 

 between the anterior and posterior axillary lines. R. 

 Infra-clavicular, the area circumscribed superiorly 

 by the lower border of the clavicle, inferiorly by tfl 

 lower border of the third rib, on one side b) a line 

 extending from the acromion to the pubic spine, and 01 

 the other side by the edge of the sternum. R., Infra- 

 hyoid, the space below the hyoid bone, between tl"' 

 sterno-cleido-mastoidei and the sternum. R., Infra- 

 mammary, the space between a li:u- drawn along bw 

 upper border of the xiphoid cartilage and tin 

 of" the false ribs, and between the middle lim 



