Urinary System-Lecture Quiz

46 cards

A&P Urinary System-Lecture


 
  
Created Jul 20, 2010
by
kkcarpen

 

 
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1
A major function of urinary system is excretion of:
 
wastes (organic).
2
Urinary system regulates plasma concentrations of:
 
important ions.
3
Urinary system regulates blood volume and thus:
 
blood pressure.
4
Regulates blood volume by adjusting the volume of H2O in the urine using:
 
ADH and Aldosterone.
5
Regulates blood volume by releasing ______ to increase RBC production.
 
EPO
6
Renin-Angiotensin I-Angiotensin II-__________.
 
Aldosterone
7
If the blood is too acidic, kidneys release ______ in urine.
 
H+
8
If the blood is to alkaline, kidneys release ______in urine.
 
HCO3-
9
Activation of vitamin D occurs under the regulation of:
 
PTH.
10
The kidneys assist the liver in:
 
detoxifying toxins.
11
Covers the entire surface of the kidney.
 
Renal Capsule
12
Surrounds the renal capsule.
 
Adipose Capsule
13
Anchors the kidneys to the abdominal wall.
 
Renal Fascia
14
Urine is made in the:
 
nephron.
15
Filtration occurs in the:
 
renal corpuscle.
16
Reabsorption occurs in the:
 
PCT, Loop of Henle, DCT and collecting duct.
17
Secretion occurs in the:
 
DCT and other areas.
18
Filtering in the kidneys is done on the basis of:
 
size.
19
Important nutrients like ____, ______ and _____ are reabsorbed back into the blood.
 
amino acids, glucose and vitamins
20
Almost all of the H2O in the nephron will be:
 
reabsorbed.
21
Capillary network across which filtration occurs.
 
Glomerulus
22
Force of _________ forces out H2O and other small molecules in the glomerulus.
 
blood pressure
23
About _____ L of filtrate enter the nephrons each day.
 
180
24
Filtrate enters the tubule at the:
 
Bowman's capsule.
25
Inner, visceral layer of Bowman's capsule is composed of special cells called ______ that aid...
 
podocytes
26
MUCH reclaiming of H2O and nutrients occurs here.
 
Proximal Convoluted Tubule
27
_____% of the H2O and _____% of the nutrients are reabsorbed in the PCT.
 
60 and 65
28
PCT are lined with _____ that aid in absorption.
 
microvilli
29
Na+ and H2O are regulated here.
 
Loop of Henle
30
Na+ is actively pumped out of the thick, ________ loop.
 
ascending
31
H2O moves out by osmosis in the thin,________ loop.
 
descending
32
The high _________ pulls water out of the tubule and into the peritubular capillaries following...
 
salt gradient
33
______% of the H2O entering the nephron is reclaimed in Henle's Loop.
 
20
34
The arrangement of the opposite flow in the tubule and the peritubular capillaries is called...
 
countercurrent mechanism
35
H2O absorption occurs in the DCT and collecting duct only if _____ is present.
 
ADH
36
ADH is released by the __________.
 
posterior pituitary
37
In _______, no ADH is present. 
 
diabetes insipidus
38
ADH makes the tubule _______ to water so it can be drawn out.
 
permeable
39
Promotes Na+ retention of the kidney.
 
Aldosterone
40
In order to have H2O leave the nephron _____ must be present.
 
ADH
41
Aldosterone turned on by _______ and _______.
 
high K+ and angiotensin II
42
If aldosterone pumps are not working, urine _______.
 
increases
43
K+ secretion is controlled by _________.
 
aldosterone
44
Aldosterone regulates both the retention of ____ and excretion of _____.
 
Na+ and K+
45
The juxtaglomelular apparatus is an endocrine structure that secretes ________ and _______.
 
renin and EPO
46
Diuretics act to ______ urine production.
 
increase

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