RENAL FUNCTION AND RENAL FUNCTION TEST Flashcards

1
Q

it supplies blood to the kidney

A

renal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

how much blood flow do kidneys receive?

A

25%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

based on average body size of

A

1.73m^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

total renal blood flow

A

1200mL/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

total renal plasma flow

A

600 to 700mL/min

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

functions of kidney

A
  1. Maintaining homeostasis
  2. Excretion of waste products
  3. Concerned with the maintenance
    of blood pressure and
    erythropoiesis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

it consists of eight capillary lobes referred to as capillary ducts

A

glomerulus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

molecular weight of glomerulus

A

<70,000

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

where is the glomerulus located?

A

bowman’s capsule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what are the pores in capillary wall membrane called?

A

fenestrated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

pores that increase capillary permeability but do not allow the passage of large
molecules and blood cells.

A

fenestrated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

restriction of large molecules occurs as the filtrate passes

A

Basement membrane (basal lamina)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

the thin membranes covering the filtration slits formed by
the intertwining foot processes of the podocytes of the
inner layer of Bowman’s capsule

A

Visceral epithelium of Bowman’s capsule.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

necessary to overcome the opposition of pressure from the fluid from the Bowman’s
capsule and the ONCOTIC PRESSURE of unfiltered plasma protein.

A

HYDROSTATIC PRESSURE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

this mechanism maintains the glomerular blood pressure at a relatively constant rate

A

Autoregulatory mechanism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Dilation of the afferent arterioles and constriction of the
efferent arterioles

A

BP drops

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

it regulates the flow of blood to and within the glomerulus.

A

RAAS (Renin-Angiotensin-Aldosterone System)

18
Q

This system respond to changes in blood pressure and plasma sodium content

A

RAAS (Renin-Angiotensin-Aldosterone System)

19
Q

this monitors the Renin-Angiotensin-Aldosterone System

A

JUXTAGLOMERULAR APPARATUS

20
Q

The body cannot lose 120 mL of water-containing essential substances every
minute

A

TUBULAR REABSORPTION

21
Q

REABSORPTION MECHANISMS

A

ACTIVE TRANSPORT and PASSIVE TRANSPORT

22
Q

Can be influenced by the concentration of the substance being transported.

A

ACTIVE TRANSPORT

23
Q

in active transport, where is substance to be reabsorbed must combined with that is contained in the membranes of the renal tubular cells?

A

carrier protein

24
Q

plasma concentration at which active transport stops.

A

Renal threshold

25
Q

Renal threshold for glucose

A

160 to 180 mg/dL

26
Q

movement of molecules across membrane as a result of
differences in their concentration or electrical potential.

A

PASSIVE TRANSPORT

27
Q

location of Glucose Amino acids Salts in active transport

A

Proximal Convoluted Tubule (PCT)

28
Q

location of sodium in active transport

A

Proximal and Distal Convoluted Tubule (PCT/DCT)

29
Q

location of water in passive transport

A

Proximal Convoluted Tubule(PCT)
Descending Loop of Henle
Collecting Duct

30
Q

location of urea in passive transport

A

Proximal Convoluted Tubule (PCT)
Ascending Loop of Henle

31
Q

location of sodium in passive transport

A

Ascending Loop of Henle

32
Q

where is water removed by osmosis

A

descending loop of Henle

33
Q

what is reabsorbed in ascending loop of henle?

A

sodium and chloride

34
Q

a selective reabsorption process that serves to maintain the osmotic gradient of the medulla

A

countercurrent mechanism

35
Q

where is the final concentration of the filtrate through the reabsorption of water begins

A

late distal convoluted tubule (and
continues in the collecting duct.)

36
Q

2 MAJOR FUNCTIONS OF TUBULAR SECRETION

A

Elimination of waste products not filtered by the glomerulus
Regulation of acid- base balance

37
Q

THIS ACTS AS BUFFER TO THE BLOOD
MAINTAINING NORMAL pH

A

BICARBONATE

38
Q

The standard tests used to measure the filtering capacity of the glomeruli

A

CLEARANCE TEST

39
Q

how is clearance test reported?

A

mL/min

40
Q
A