Unit 6 Flashcards
What is the general function of the kidney
Excretion of nitrogenous waste, water, electorlytes
regulate water
Secrete renin
What is the capsule of the kidney made up of
Dense irregular CT
What enters the hilum of the kidney
Nerves
Lymph
What exits the hilum of the kidney
Ureters
Blood
Lymph
What is the borad spaces within kidney to collect urine and direct to renal pelvis
Major calyces
how many major calyces are there in the kindey
2-3/kidney
What is the collecting area for each major calyces
Minor calyces
What part of the renal pyramid is found in the minor calyces
Renal papilla
What surrounds the renal pelvis, major calyces, minor calyces
Renal sinus
What type of CT is contained in the renal sinus
Adipose
What are the two regions of parenchyma within the kidney
Cortex
Medulla
What part of the parenchyma contains renal corpuscles
Cortex
What part of the parenchym contain tubules
Cortex
What part of the parenchym contain medullary rays
Cortex
What part of the cortex contain most of the loop of henle and collecting tubules
Medullary rays
What is found in the medulla of the parenchyma of the kidney
Renal pyramids
Renal columns
What separates renal pyramids
Renal columns
Where are nephrons found
Medulla of the parenchyma of the kidney
What part of the nephron is always in the cortex
Renal corpuscle
What is the function of the renal corpuscle
Blood filtration
What type of epithelium is in the parietal layer of the bowmans capsule
Squamous epithelium
What layer of bowmans capsule contain podocytes
Visceral layer
What are podocytes
Modified epithelial containing pedicles
What covers glomerular capillaries creating filtration slits
Pedicles/secondary podocytes
What is the space between the parietal and visceral layer of the bowmans capsule
Urinary space
What type of capillaries are found within the visceral layer of bowmans capsule
Fenestrated
What is the fenestrated capillary layer in a bowmans capsule called
Glomerulues
What creates increased capillary pressure in the glomerules
The tunica media of the flanking arterioles
What special cells are found within the renal corpuscles
Mesangial cells
in general where are mesangioal cells found in the kidney
In areas lacking podocytes
What type of epithelium covers proximal tubules
Cuboidal with long microvili
Where are proximal tubules located
Cortex
What is the function of the proximal tubules
reabsorption of nutrients
Secretion of organic m/c
What are the ascending and descending parts of the loop of henle
Thin limbs
What type of epithelium makes up the thin limbs
Simple squamous
Where are the thin limbs located
Medulla
What is the function of the thin limbs
Reabsorb Na CL passivly
What type of epithelium makes up the thick ascending limb of the loop of henle
Simple cuboidal (no microvili)
What is the location of the thick ascending limb or the loop of henle
Medulla and medullary rays
What is the function of the thick ascending limb of the loop of henle
Reabsorb electrolytes activly
What type of epithelium lines the distal convoluted tubule
Cuboidal (short microvili)
What is the location of the distal convoluted tublules
The cortex
What is the special part of the distal convoluted tubule with closely packed columnar cells
Macula densa
What is the macula densa a part of
Juxtaglomerular apparatus
What is the function of the macula densa
Regular glomerular blood flow and glomerular filtrate
What epithelial tissue make up the connecting tubule
Squamous and cuboidal
What is the function of connecting tubule
Connect nephrons to collecting ducts
Where are principal cells found
Collecting ducts
Where are intercalated cells found
Collecting ducts
What is the most common special cell in collecting ducts
Principal/light cells
What type of epithelium is found in smaller collecting ducts
Simple cuboidal
What type of epithlium is found in large collecting ducts
Simple Columnar
What is the function of principal/light cells
Influence water and electrolyte movement
influence potassium secretion
What is the order of travel starting at collecting duct
Collecting duct
Papillary duct
Renal papillae
Minor clayx
What surface lines the mucosa of the ureters
Urothelium
Where are umbrella cells found
Mucosa of the luminal wall of the ureters
Where are plaque and umbrella cells most developed
Urinary bladder
What is the function of umbrella and plaque cells
Block water passage
What is the lamina propria of the mucosa of the ureters made up of
Dense irregular CT
What is the pattern of the muscularis externa in ureters
Reverse pattern
- Inner = longitudinal - outer = Circular
How many layers are in the muscularis exteran at the proximal end of the ureters
2
How many layers are in the muscularis exteran at the distal end of the ureters
3
What is the order of layers in the distal muscularis externa of ureters
Inner- Longitudinal
Middle - Circular
Outer - Longitudinal
What helps move urin
Peristaltic contrations
What is in the advintitia of the ureters
Adipose
Blood vessels
Nerves
How do the ureters create a valve when they enter the urinary bladder
The enter at an angle
What is the function of the urinary bladder
Store urine
What type of epithelium lines the urinary bladder
Transitional epithelium
How many layers is the mucosa of the urinary bladder
6+
What regions or the urinary bladder have well developed placque cells
Thinner regions
How many layers are in the muscularis externa of the urinary bladder
3
What is the musculars externa of the urinary bladder also called
Detrusor muscle
What is the order of the layers of the muscularis externa
Inner - longitudinal
middle - circular
outer - longitudinal
What muscle is important in preventing the spread of infection to the kidney
Internal urethral sphincter
Is the internal urethral sphincter voluntary or involuntary muscle
Involuntary
Nerve supply from urinary bladder to blood vessels is (para, sympathetic, sensory
Sympathetic
What cord levels does the urinary bladder receive parasympathetic supply from
S2 - S4
what nervous system is responsible for the micturation reflex
Parasympathetic NS
What layer of the urinary bladder is innervated by parasympathetics
Musculars externa
Adventitia
What are the afferent sensory fibers in the urinary bladder for
Micturation reflex
What is the surface epithelium of the prostatic urethra in males
Urothelium
Where is the prostatic urathra
In the prostate
What type of muscle makes up the external urethral sphincter in males
Striated muscle (voluntary)
What is the surface epithelium of the membranous urethra in males
Stratified columnar
Pseudostratified columnar
What surrounds the Spongy urathra
Erectile tissue (corpus spongiosum)
What is the surface epithelium of the spongy urethra
Stratified columnar
Pseudostratified columnar
What kind of surface epithelium lines the distal spongy urethra
Stratified squamous epithelium
What is the general structure of the urethra
Fibromuscular tube with longitudinal folds in mucosa
What type of epithelium lines the urethra in females
Uroepithelium
What type of epithelium line the distal portion of the urethra in females
Stratified squamous epithelium
What are the two glands in the female urethra
Proximal urethral glands
Paraurathral glands
What do paraurethral glands do
Secrete alkaline fluid into sides of external urathral orifice