Test 4 Renal Flashcards

1
Q

relaxed when bladder is at rest and flexed during urination

A

Detrusor muscle

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2
Q

allows the bladder to stretch

A

transitional epithelium

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3
Q

what percent of renal blood flow does renal blood flow receive

A

20-25 percent

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4
Q

The filtration of the plasma per unit of time is known as _______ which is directly related to the perfusion pressure in the glomerular

A

glomerular filtration rate GFR

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5
Q

a local mechanism that tends to keep the rate of glomerular perfusion and there for the GFR fairly constant over a range of arterial pressures between 80 and 180 mmHg

A

autoregulation

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6
Q

as arterial pressure declines, the stretch on the afferent arteriolar smooth muscle decreases and the arterial relaxes, causing an increase in glomerular perfusion, an increase in arteriolar pressure causes the arteriole smooth muscle to contract and decrease glomerular perfusion

A

myogenic mechanism

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7
Q

as the GFR in an individual nephron increases or decreases, the macula dense cells in the distal tubule sense the increasing or decreasing amounts of filtered sodium, when sodium filtration increases the macula dense cells stimulate afferent arteriolar vasoconstriction to decrease GFR

A

Tubuloglomerular feedback

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8
Q

The innervation of the kidney come primarily from the what?

A

celiac ganglion and greater splanchnic nerve

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9
Q

released during heart failure or when atrium is stretched
Inhibits renin and aldosterone
Causes a decrease in water retention

A

ANP

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10
Q

what does the proximal tube reabsorb

A

Na

K

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11
Q

what does the proximal tube secrete

A

H

Foreign substances

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12
Q

what does the distal tube reabsorb

A

H2O (ADH required)

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13
Q

what does the distal tube secrete

A
K
Urea
H
NH3
some drugs
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14
Q

what does the collecting duct reabsorb

A

H20 (ADH required)

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15
Q

is an end product of protein metabolism and is the major constitute of urine
Can regulate pH

A

urea

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16
Q

important for diluting and concentrating urine

Epi and nore epi

A

catecholamines

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17
Q

secreted from the kidneys to produce diuresis during period of hypertension

A

urodilantin

18
Q

is any agent that enhances the flow of urine

Interefers with renal sodium reabsorption

A

diuretic

19
Q

important for calcium absorption in the intestines

A

Vitamine D

20
Q

stimulates the production of RBCs

A

erythropoietin

21
Q

incomplete opening of the bladder neck during urination resulting in partial obstruction of urinary flow

A

bladder neck dyssynergia

22
Q

refers to the dysfunction of the urinary bladder due to disease of the central nervous system or peripheral nerves involved on the control of micturition

A

neurogenic bladder

23
Q

lesions above C2 cause

A

detrusor hyperreflexia

24
Q

lesions between C2 and S1 cause

A

detrusor hyperflexia with vesicosphincter dyssynergia

25
Q

lesions below S1 cause

A

detrusor areflexia, with or without urethral sphincter incompetence

26
Q

is inflammation of the urinary epithelium following invasion of colonization by some pathogen within the urinary tract

A

UTI

27
Q

inflammation of the bladder

A

cystitis

28
Q

acute infection of the ureter, renal pelvis, and or renal parenchyma (bacterial travel)

A

acute pyelonephritis

29
Q

persistent or recurring episodes of pyelonephritis

Risk increases in individuals with renal infections and some ape of obstructive pathologic condition

A

chronic pyelonephritis

30
Q

Inflammation of the glomerulus

Inflammation of the small blood vessels in the kidneys

A

Glomerulonephritis

31
Q

Decreased glomerular filtration rate leased to

A

Elevated plasma creatinine and urea

Reduced creatinine clearance

32
Q

Increased globular capillary permeability and loss of negative ionic charge barrier result in

A

passage of plasma proteins (albumin) into the urine

33
Q

is the excretion of 3.0g or more of protein in the urine per day

A

nephrotic syndrome

34
Q

clinic manifestations of nephrotic syndrome

A

hypoalbuminemia
Edema
Hyperlipidemia
Lipiduria

35
Q

caused by impaired renal blood flow

GFR declines due to the decrease in filtration pressure

A

Prerenal acute renal failure

36
Q

is the most common cause of intrarenal renal failure

A

Acute tubular necrosis

37
Q

occurs with urinary tract obstructions that affect the kidneys bilaterally

A

psotrenal acute renal failure

38
Q

is the irreversible loss of renal function that affects nearly all organ systems

A

chronic renal failure

39
Q

the presence of abnormal quantities of protein in the urine

May indicate damage to kidneys

A

Proteinuria

40
Q

the production of abnormally small amounts of urine

A

Oliguria

41
Q

excess amounts of sugar in urine

A

Glucosuria