Lecture 25

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Question 1 of 17

What are medullary rays?= Extensions of medulla into cortex

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Question 2 of 17

What are renal columns?= Extensions of cortex into medulla

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Question 3 of 17

What is the portion of the renal lobule that feeds into the receptacle of the ureta?= Minor calyx

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Question 4 of 17

What do medullary rays indicate? =Center of lobule

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Question 5 of 17

What forms medullary rays? =Straight portions of tubules extending into cortex

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Question 6 of 17

What is featured between two lobules?= Interlobular artery

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Question 7 of 17

Where do the blood vessels and ureter meet the kidney? =Hilus

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Question 8 of 17

What artery enters the hilus? =Renal artery

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Question 9 of 17

What does the renal artery branch into? =Segmental arteries of the outer cortex, interlobar arteries, arcuate artery, interlobular arteries, afferent and efferent arterioles, peritubular cappilaries, stellate veins, interlobular vein arcuate vein, interlobar vein, renal vein

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Question 10 of 17

What do the blood vessels of the inner cortex branch into? =Efferent arteriole, descending vasorecta, medullary capillaries, venous ascending vasa recta, arcuate veins, interlobar vein, renal vein

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Question 11 of 17

What defines the corticomedullary junction? = Arcuate artery

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Question 12 of 17

What is the epithelium in the ureter and bladder?= Transitional epithelium

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Question 13 of 17

What is transitional epithlium surrounded by?= Smooth muscle, connective tissue

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Question 14 of 17

What leak proofs the epithelium?= Tight juctions, membrane

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Question 15 of 17

What is the change of epithelial cells as it progresses along the urethra?= Transitional, stratified columnar, stratified squamous

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Question 16 of 17

What shape is a transverse section of the ureter?= Star shaped

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Question 17 of 17

What are the layers of the ureter?= Muscularis externa, lamina propria, transitional epithelium

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Question 1 of 31

What is a uriniferous tubule?= Nephron and collecting duct

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Question 2 of 31

What are the divisions of the medulla?= Inner, outer

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Question 3 of 31

What does the outer medulla contain?= Proximal, distal tubule, portion of loop of henle

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Question 4 of 31

What are the stages of glomerula development?= Blind ended tube, capillary tuft, glomerulus

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Question 5 of 31

Which layer of epithelium is in contact with the blood vessels forming the glomerulus?= Visceral epithelium

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Question 6 of 31

What type of epithelium lines the glomerulus blood vessels?= Fenustrated endothelium

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Question 7 of 31

What cells does the visceral endothelium contain?= Pedocytes

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Question 8 of 31

What does parietal epithelium form?= Bowman's capsule

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Question 9 of 31

What are the functions of mesengial cells?= Structural support for cappillaries, phagocytosis, capillary permeability control

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Question 10 of 31

What are the types of mesengial cells?= Intraglomerulus, extraglomerulus

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Question 11 of 31

What are the components of the juxtoglomerular apparatus?= JG cells, lacis cells, macula densa

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Question 12 of 31

What are JG cells?= Modified myoepithelium

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Question 13 of 31

What are the functions of JG cells?= Produce renin

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Question 14 of 31

Where are the JG cells located?= Tunica media of the afferent arterioles

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Question 15 of 31

What are the lacis cells?= Pale staining, modified extra glomerula mesengial cells

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Question 16 of 31

What is the role of macula densa cells?= Sensing low Na, Cl

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Question 17 of 31

Where are the macula densa cells located?= Wall of distal convoluted tubule

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Question 18 of 31

What is in the proximal convoluted tubules?= Glycoproteins

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Question 19 of 31

What are the physical components of kidney filtration apparatus?= Endothelium of capiilaries, basement membrane, slit pores, surface coat

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Question 20 of 31

How big are the pores in fenustrated epithelium?= 50nm

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Question 21 of 31

What are the layers of the basement membrane?= Lamina rara interna, lamina densa, lamina rara extrerna

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Question 22 of 31

What differentiates lamina rara from lamina densa?= Density of collagen fibre weave

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Question 23 of 31

What are the filtration layers of the glomerulus?= Fenustrated endothelium, lamina densa, epithelial foot process

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Question 24 of 31

What charge does the lamina rara externa have?= Negative

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Question 25 of 31

What forms the slit diaphragm of podacytes?= secondary processes

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Question 26 of 31

What are the types of nephron?= Juxtamedullary, cortical

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Question 27 of 31

Which nephron produces concentrated urine?= Juxtamedullary

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Question 28 of 31

What are the features of tubular epithlium?= Processes interdigitate, tight junctions, continuous basal lamina, intercellular space (peritubular space)

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Question 29 of 31

What is the thin loop of Henle formed by?= Simple squamous epithelium

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Question 30 of 31

What are the features of distal tubule epithelium?= Processes interdigitate, no microvilli, few sensory projections

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Question 31 of 31

What are the cells of the collecting ducts?= Columnar epithelium

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