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30 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Renals filter Liters a day
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20-25 L
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Renal Stroma
capsule consists of __ layers Describe layers |
2
~OUTER -dense irregular CT -fibroblasts -collagen fibers ~INNER -myofibroblasts. |
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Renal Stroma
Internal stroma 2 layers |
-Reticular fibers are numerous
-uriniferous tubule epithelium has a basal lamina supported by -reticular fibers. Collagenous fibers in varying degrees -some fibroblasts -macrophages are present -Less stroma in cortex compared to medulla pic |
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cortex (subdivided into =
2ct |
outer cortex
juxtamedullary cortex medulla subdivided into |
outer medulla
inner medulla |
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pic
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Vertical striations emanating from medulla are seen in cortex. These are called
pic |
medullary rays.
Medullary rays contain = |
-straight tubules
-collecting ducts. |
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The region between the medullary rays contain the =
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-renal corpuscles
-convoluted tubules of nephrons and -collecting tubules. These areas are referred to as the = |
cortical labyrinth.
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The medulla is characterized by
-straight tubules of the nephrons, -collecting ducts and a special capillary network called = |
vasa recta.
Vasa recta runs parallel to tubules and participate in = |
-countercurrent exchange system
that regulates the concentration of the urine. |
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The tubules form =
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conical structures called =
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pyramids
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The bases of pyramids face =
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cortex
and the apices face the = |
Renal sinus.
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Each pyramid is divided into an =
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an outer medulla (adjacent to cortex) and an inner medulla.
= The outer medulla is further subdivided into an |
-outer stripe
-inner stripe. |
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The renal columns represents
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-cortical tissue
contained within = |
-medulla
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Lobes and lobules
medullary pyramid, together with the associated covering = |
-cortical region,
constitutes a = The base of the renal lobe is the = |
-renal lobe.
-renal capsule. |
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The lateral boundaries of each renal lobe are the =
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renal columns (of Bertin),
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renal columns (of Bertin),
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The lateral boundaries of each renal lobe
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renal columns (of Bertin),
residual structures representing the fusion of primitive lobes within the = |
metanephric blastema.
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The apex of each renal lobe terminates in a conic-shaped papilla surfaced by the area =
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cribrosa
(the opening site of the papillary ducts). |
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papilla is surrounded by a
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minor calyx.
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Each minor calyx collects the urine from a papilla dripping from the
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area cribrosa.
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Minor calyces converge to form the =
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major calyces
which, in turn, form the = |
renal pelvis
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The renal lobule is a portion of the cortex flanked by two adjacent =
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ascending interlobular arteries.
A medullary ray is the = |
axis of the lobule
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Each kidney has about _________ ct uriniferous tubules =
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1.3 million
surrounded by a stroma containing loose = 4ct |
-CT
-blood vessels -lymphatics -nerves |
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Each uriniferous tubule consists of two embryologically distinct segments:
= 2ct |
nephron
collecting duct |
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structural and functional unit of kidney
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nephron
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nephron is considered =
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structural and functional unit of kidney
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nephron consists of two components:
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renal corpuscle (300 μm in diameter)
long renal tubule (5 to 7 mm long). |
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renal tubule consists of several regions: =
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-proximal convoluted tubule
-loop of Henle -distal convoluted tubule, which empties into the -collecting tubule. |
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Depending on the distribution of renal corpuscles,
nephrons can be either = |
cortical
juxtamedullary |
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Renal tubules derived from cortical nephrons have a =
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short loop of Henle
that penetrates just up to the = |
outer medulla.
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Renal tubules from juxtamedullary nephrons have a =
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-long loop of Henle
projecting into the = |
inner medulla,
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