The Urinary System Flashcards

1
Q

List the functions of the Urinary system

A
  • removal of wastes
  • regulates water and ion concentration
  • regulates blood pH
  • production of erythropoeitin (regulation of RBC production)
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2
Q

What is the outer region of the kidney called

A

Renal Cortex

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3
Q

What is the inner part of the kidney called

A

Renal Medulla

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4
Q

What is the function unit of the kidney

A

the Nephron

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5
Q

What are the 3 stages of Urine formation

A
  1. Glomerular filtration- fluids are forced from capillaries into renal capsule
  2. Tubular reabsorption- some solute return back to capillaries
  3. Tubular secretion- wastes are secreted in renal tubule from capillaries
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6
Q

Urinary System

Where does the majority of Tubular Reabsorption take place

A

Proximal convoluted tubule

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7
Q

What causes urine’s yellow colour

A

Urochrome

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8
Q

Define: Micturition

A

voiding bladder

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9
Q

Name the organs of the urinary system

A

Kidneys
Ureter
Bladder
Urethra

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10
Q

Erythropoetin is secreted when there is…

A

decrease in blood oxygen levels

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11
Q

The regions of the Nephron under hormonal influence are

A
  • Loop of Henle

- Glomerulus

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12
Q

The region of the Nephron influenced by antidiuretic hormone for reabsorption of matter is…

A

Collecting duct

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13
Q

An increase in the permeability of the collecting duct to water is due to…

A

increased production of antidiuretic hormone

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14
Q

The filtrate in the glomerular capsule doe NOT contain

A

Protein

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15
Q

A decrease in sodium ions and water reabsorption would occur due to

A

atrial natriuretic peptide

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16
Q

What is the sequence from the formation of urine to its elimination

A
  1. Nephron
  2. Collecting duct
  3. Minor calyx
  4. Major calyx
  5. Ureter
  6. Urethra
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17
Q

Increased water and sodium reabsorption by aldosterone occurs in..

A

the collecting duct and distal convoluted tubule

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18
Q

Secretion of antidiuretic hormone would lead to

A

a decrease in urine output

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19
Q

The region of the spinal cord involved in micturition reflex is

A

sacral region

20
Q

What is a trigger for the initialisation of the micturition reflex

A

stretch of the bladder wall

21
Q

Describe: Glomerular filtration

A

the process whereby blood pressure forces water and other dissolved substances from the blood into the glomerular capsule

22
Q

The renal pyramids are located in the…

A

Renal Medulla

23
Q

An increase in urine output is due to…

A

Atrial natriuretic peptide

24
Q

Where does glomerular filtration take place

A

Renal corpuscle

25
The renal corpuscle is made up of...
Glomerular capsule | Glomerulus
26
The main solute present in normal urine is...
Urea
27
During the micturition reflex, stimulation of the somatic motor neurons would result in...
contraction of the external urethral sphincter
28
What is the major site where parathyroid hormone stimulates reabsorption of Ca
Distal convoluted tubule
29
The kidney produce Renin when...
blood pressure decreases
30
The glomerular capsule is continuous with..
the proximal convoluted tubule
31
Atrial natiuretic peptide is released by...
Heart
32
The descending limb of the loop of henle is most permeable to...
water
33
Define the Function: Aldosterone
increase water reabsorption
34
The process that mostly takes place in the proximal convoluted tubule is...
tubular reabsorption
35
What is not normally a waste product secreted by the kidneys
Glucose
36
The descending part of the Loop of Henle specifically reabsorbs only..
Water
37
Which hormones is produced by the Posterior pituitary gland to increase water reabsorption by nephrons
Antidiuretic hormone
38
The function of Aldosterone is to
increase water reabsorption
39
The stage of urine formation that takes place n the renal corpuscle is...
Glomerular filtration
40
The region of the spinal cord involved in the micturition reflex is..
Sacral region
41
An increase in urine output would be due to which hormone
Atrial Natriuretic Peptide
42
Erythopoetin is secreted when there is a...
decrease in blood oxygen levels
43
An increase in the permeability of the collecting duct to water is due to...
increase in production of antidiuretic hormone
44
The kidneys are stimulated to produce Renin when..
the blood pressure decreases
45
The renal corpuscle is made up of...
Glomerular capsule and Glomerulus
46
Water is mostly reabsorbed in
Proximal convoluted tubule