腎髄質
WordNet
- the inner part of an organ or structure in plant or animal
PrepTutorEJDIC
- 〈U〉骨髄 / =medulla oblongata
- 腎臓の
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/04/06 16:39:18」(JST)
[Wiki en表示]
| Renal medulla |
- 1: Parenchyma
- 2: Cortex
- 3: Medulla
- 4: Perirenal fat
- 5: Capsule
- 6: Ureter
- 7: Pelvis of kidney
- 8: Renal artery and Renal vein
- 9: Hilus
- 10: Calyx
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Vertical section of kidney. (Label "medullary sub." visible near top.)
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| Details |
| System |
Urinary system |
| Identifiers |
| Latin |
Medulla renalis |
| MeSH |
A05.810.453.466 |
| TA |
A08.1.01.020 |
| FMA |
74268 |
| Anatomical terminology
[edit on Wikidata]
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The renal medulla is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the interlobar arteries. The interlobar arteries each in turn branch into arcuate arteries, which in turn branch to form interlobular arteries, and these finally reach the glomeruli. At the glomerulus the blood reaches a highly disfavourable pressure gradient and a large exchange surface area, which forces the serum portion of the blood out of the vessel and into the renal tubules. Flow continues through the renal tubules, including the proximal tubule, the Loop of Henle, through the distal tubule and finally leaves the kidney by means of the collecting duct, leading to the renal pelvis, the dilated portion of the ureter.
The renal medulla (Latin renes medulla = kidney middle) contains the structures of the nephrons responsible for maintaining the salt and water balance of the blood. These structures include the vasa rectae (both spuria and vera), the venulae rectae, the medullary capillary plexus, the loop of Henle, and the collecting tubule.[1] The renal medulla is hypertonic to the filtrate in the nephron and aids in the reabsorption of water.
Blood is filtered in the glomerulus by solute size. Ions such as sodium, chloride, potassium, and calcium are easily filtered, as is glucose. Proteins are not passed through the glomerular filter because of their large size, and do not appear in the filtrate or urine unless a disease process has affected the glomerular capsule or the proximal and distal tubules of the nephron.
Additional Images
See also
- Medullipin
- Kokko and Rector Model, a theory to explain how a gradient is generated in the inner medulla
References
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Anatomy of the urinary system
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| Kidneys |
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Layers
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- Fascia
- Capsule
- Cortex
- Medulla
- sinus
- pyramids
- medullary interstitium
- Lobe
- Cortical lobule
- Medullary ray
- Nephron
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Circulation
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- Arteries
- Renal artery
- segmental
- interlobar
- arcuate
- interlobular
- afferent
- Veins
- Renal vein
- Peritubular capillaries
- Vasa recta
- arcuate
- interlobar
- efferent
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Nephron
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Renal corpuscle
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- Glomerulus
- Bowman's capsule
- Glomerular basement membrane
- Podocyte
- Filtration slits
- Mesangium
- Intraglomerular mesangial cell
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Renal tubule
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- Proximal convoluted tubule
- Loop of Henle
- Descending
- Thin ascending
- Thick ascending
- Distal convoluted tubule
- Connecting tubule
- Tubular fluid
- Renal papilla
- Minor calyx
- Major calyx
- Renal pelvis
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Juxtaglomerular apparatus
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- Macula densa
- Juxtaglomerular cells
- Mesangium
- Extraglomerular mesangial cell
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| Ureters |
- Orifice of ureter
- Ureteropelvic junction
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| Bladder |
- Apex
- Uvula
- Neck
- Median umbilical ligament
- Muscular layer
- Mucosa
- Submucosa
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| Urethra |
- Urethral sphincters
- External sphincter
- Internal sphincter
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UpToDate Contents
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English Journal
- Cells of renin lineage express hypoxia inducible factor 2α following experimental ureteral obstruction.
- Stefanska A1, Eng D2, Kaverina N3, Pippin JW4, Gross KW5, Duffield JS6, Shankland SJ7.
- BMC nephrology.BMC Nephrol.2016 Jan 8;17(1):5. doi: 10.1186/s12882-015-0216-0.
- BACKGROUND: Recent studies indicate that mural cells of the preglomerular vessels, known as cells of renin lineage (CoRL), contribute to repair and regeneration of injured kidney glomeruli. However, their potential roles in tubulointerstitial disease are less understood. The aim of this study was to
- PMID 26746687
- Renal Blood Oxygenation Level-dependent Imaging in Longitudinal Follow-up of Donated and Remaining Kidneys.
- Seif M1, Eisenberger U1, Binser T1, Thoeny HC1, Krauer F1, Rusch A1, Boesch C1, Vogt B1, Vermathen P1.
- Radiology.Radiology.2016 Jan 8:150370. [Epub ahead of print]
- Purpose To determine renal oxygenation changes associated with uninephrectomy and transplantation in both native donor kidneys and transplanted kidneys by using blood oxygenation level-dependent (BOLD) MR imaging. Materials and Methods The study protocol was approved by the local ethics committee. T
- PMID 26744926
- Location-dependent sensing of nitric oxide and calcium ions in living rat kidney using an amperometric/potentiometric dual microsensor.
- Kim YS1, Ha Y, Sim J, Suh M, Lee Y.
- The Analyst.Analyst.2016 Jan 7;141(1):297-304. doi: 10.1039/c5an01804h. Epub 2015 Nov 25.
- In this paper, we report the fabrication of a dual microsensor for sensing nitric oxide (NO) and calcium ions (Ca(2+)) and its application for simultaneous NO/Ca(2+) measurements in living rat kidney tissue. NO and Ca(2+) have very important physiological functions and are both intricately involved
- PMID 26606650
Japanese Journal
- 鶏の比較解剖学的並びに局所解剖学的研究 : LXXIII. 腎小体の大きさとその分布
Related Links
- medulla [mĕ-dul´ah] (L.) 1. the inmost part of a structure or organ. 2. medulla oblongata. 3. marrow. adj., adj med´ullary. adrenal medulla the inner portion of the adrenal gland, where epinephrine and norepinephrine are produced. ...
- Medulla renalis information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. ... Introduction: Medulla renalis Description of Medulla renalis Medulla renalis: Related Topics These ...
★リンクテーブル★
[★]
- 英
- renal medulla (Z)
- ラ
- medulla renalis
- 関
- 腎臓、腎皮質
[★]
毛
副腎
脳神経
[★]
- 関
- kidney、renally