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DMD 5249 > Renal Embryo Histo- Reynolds > Flashcards

Renal Embryo Histo- Reynolds Flashcards

1
Q

Pronephros:

Mesonephros:

Metanephros:

A

Pronephros: Primitive

Mesonephros: Fish

Metanephros: Man

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2
Q

The ureteric bud grows into posterior intermediate _________

A

The ureteric bud grows into posterior intermediate mesoderm

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3
Q

After the _______ bud elongates and branches it becomes the collecting duct system

A

After the Ureteric bud elongates and branches it becomes the collecting duct system

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4
Q

The Metanephric _________ is composed of cells surrounding the metanephric ____(excretory portion)

A

The Metanephric blastema is composed of cells surrounding the metanephric duct(excretory portion)

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5
Q

The primary mesonephric ducts become the mesonephric/_______duct and attach to the _____.

A

The primary mesonephric ducts become the mesonephric/wolffian duct and attach to the cloaca.

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6
Q

Nephrogenesis is _________ at birth in human

A

Nephrogenesis is completed by birth in human

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7
Q

Generations of nephrons form from the branch of the ______ and the inner portion is ____ than the outer

A

Generations of nephrons form from the branch of the ampulla and the inner portion is older than the outer

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8
Q

The allantois is made from the base of the _______

A

The allantois is made from the base of the BLADDER

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9
Q

Oligohydramnios

A

Potters syndrome: Bilateral renal agenesis- no kidneys leading to no amniotic fluid around fetus.

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10
Q

Urachal Fistula

A

Sphincter between bladder and umbillicus. Leads to fluid dribbling out of Umbilical fistula after birth

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11
Q

Sertolic cells secrete ________ inhibiting substance

A

Sertolic cells secrete Mullerian inhibiting substance

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12
Q

___________ stimulates mesonephric ducts to continue to develop into the ductus deferens

A

Testosterone stimulates mesonephric ducts to continue to develop into the ductus deferens

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13
Q

Abscence of Mullerian inhibitory factor or testosterone leads to the ___________ ducts to degenerate and the _________ ducts to continue to develop as oviducts.

A

Abscence of Mullerian inhibitory factor or testosterone leads to the Mesonephric ducts to degenerate and the Paramesonephric ducts to continue to develop as oviducts.

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14
Q

A common defect in males where a second opening on the under side of the penis leads to urine flowing out before the urethra terminates

A

Urogenital sinus fails to fold

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15
Q

Female:

Genital tubercle-> ______

Genital folds -> _______

Genital swellings -> ________

Cranial urogenital sinus -> ______

A

Female:

Genital tubercle-> clitoris

Genital folds -> labia minora

Genital swellings -> labia majora

Cranial urogenital sinus -> urethra

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16
Q

Three functions of the Urinary System

A

Excretion

Elimination

Homeostatic regulation

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17
Q

The homeostatic functions of the kindey are:

A

Regulate blood olume& pressure

Plasma ion concentraions

Stabalize blood pH

Conserve valuable nutrients

Assists liver

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18
Q

The ____ kindey is superior to the ____ kidney

A

The left kindey is superior to the right kidney

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19
Q

Perinephric fat capsule

A

Thick layer of adipose surrounding the renal capsule

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20
Q

Nephrons are where urine production begins and is located within the _____of each renal lobe

A

Nephrons are where urine production begins and is located within the cortex of each renal lobe

21
Q

The two components of the renal corpuscle are:

A

bowmans capsule and glomerulus

22
Q

The renal corpuscle is composed of _____ _______ epithelium, proximal conviluted tubule is composed of simple cuboidal _______a brush boarder, distal convoluted tubules are composed of simple cuboidal _______brush boarders.

A

The renal corpuscle is composed of simple squamous epithelium, proximal conviluted tubule is composed of simple cuboidal with a brush boarder, distal convoluted tubules are composed of simple cuboidal without brush boarders.

23
Q

The type of CT within the renal corpuscle is ______ CT

A

The type of CT within the renal corpuscle is loose CT

24
Q

Correct order for renal system development

A

Pronephrus->mesonephrus->metanephrus

25
Q

The ureteric buds are derived from

A

Intermediate mesoderm

26
Q

The ____________ persist in females and contribute to reproductive structures.

A

Paramesonephric

27
Q

The renal defect that involves inadequate amounts of urine production in utero is called

A

Oligohydramnios

28
Q

The renal defect that involves anomalous fusion of the metanephric blastema is called

A

Horseshoe kidney

29
Q

The renal defect that involves a persistent allantois is called

A

Urachal fistula

30
Q

Nephrotomes

A

Segmentally arranged cords in Pronephric ducts

31
Q

This primitive section of the urinary systen has a glomerulus surrounded capsule and is similar to aquatic animal filter/waste removal.

A

Mesonephrons

Mesonephric tubule extends toward capillary bed from mesonephric duct

32
Q

The ________ duct exten caudally, becomes Wolffian duct, atach to cloaca, regres in females, nut become ductus deferens in males.

A

The Mesonephric duct exten caudally, becomes Wolffian duct, atach to cloaca, regres in females, nut become ductus deferens in males.

33
Q

Tip of first _____ gives rise to renal pelvis

A

Tip of first ampula gives rise to renal pelvis

34
Q

Duplex ureter&kidney

A

3 kidneys caused by having two ureteric buds

35
Q

Potter’s syndrome/Olygohydramnios

A

Bilateral renal agenesis. Fetus does not urinate= no amniotic sac volume. Face compressed, when born usually die due to pulmonary hyperplasia

36
Q

THe pronephros ________ around day 22.

The mesonephros turn into the mesonephric ducts and leads to Paramesonephric ducts.

The _________ducts form male tubes and regress in females.

The __________ ducts become Female tubes and regress in males.

A

THe pronephros degenerates around day 22.

The mesonephros turn into the mesonephric ducts and leads to Paramesonephric ducts.

The mesonephric ducts form male tubes and regress in females.

The Paramesonephric ducts become Female tubes and regress in males.

37
Q

Wolffian ducts are also known as

Mullerian ducts are also known as

A

Wolffian ducts are also known as mesonephric ducts

Mullerian ducts are also known as paramesonephric ducts

38
Q

Sertoli cells secrete mullerian inhibiting hormone(AMH) which cause the _____________ ducts to degenerate in males

A

Sertoli cells secrete mullerian inhibiting hormone(AMH) which cause the paramesonephric ducts to degenerate in males

39
Q

Name the indifferent external genitalia

A

genital eminence, tubercle, folds, urogenital sinus, and genital swellings

GEt TFU, Go Swim

40
Q

In males the

Genital _______v-> penis

Genital ________-> scrotal pouch

Genital folds fuse-> closing urogenital _____

Canalization of epithelial seam -> ______

Line of fusion -> ______

A

In males the

Genital tubercle-> penis

Genital swellings-> scrotal pouch

Genital folds fuse-> closing urogenital sinus

Canalization of epithelial seam -> Urethra

Line of fusion -> raphe

41
Q

Vagina formation

Mullerian ducts contact urogenital sinus

Epithelial proliferation induces the formation of uterovaginal plate

A

Vagina formation

Mullerian ducts contact urogenital sinus

Epithelial proliferation induces the formation of uterovaginal plate

42
Q

Female external genitalia

Genital _______-> clitoris

Genital _______-> labia minora

Genital _________-> labia majora

Cranial urogenital sinus -> ______

A

Female external genitalia

Genital tubercle-> clitoris

Genital folds -> labia minora

Genital swellings -> labia majora

Cranial urogenital sinus -> urethra

43
Q

The inner most layer surounding the kidney is the ________.

It is composed of ________ fibers.

A

The inner most layer surounding the kidney is the Fibrous capsule.

It is composed of collagen fibers.

44
Q

THe layer between the fibrous capusle and Renal fascia is the

A

Perinephric fat capsule.

45
Q

The outer layer of the kidney that anchors it to the surrounding structures

A

Renal Fascia

The outer layer of the kidney that anchors it to the surrounding structures

46
Q

Where can simple squamous epithelium be found in the kidney?

Simple cuboidal?

A

Simple squamous- renal corpuscle

Cuboidal- convoluted tubules

47
Q

What type of CT is present in the renal corpuscle

A

loose CT

48
Q

The urethra is composed of ________

The ureters are composed of ________

The bladder is composed of ________________and ________

A

The urethra is composed of Urothelium

The ureters are composed of Transitional epithelium

The bladder is composed of transitional epithelium and urothelium

DMD 5249 (7 decks)

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