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Histology > Quiz 12 > Flashcards

Quiz 12 Flashcards

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1
Q

The glomerular capillaries are separated from the podocytes by _____

A
  • Only a shared basal lamina
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2
Q

Glucose and amino acids are resorbed from the glomerular filtrate by the _____

A
  • Proximal convoluted tubule
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3
Q

The diameter of a renal corpuscle is around _____

A
  • 200 um
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4
Q

Renin is secreted by the _____

A
  • Juxtaglomerular cells
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5
Q

The high osmotic pressure in the tissue fluid of the medulla of the kidney is primarily the result of _____

A
  • Ion transport by the thick ascending segment of the loop of Henle
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6
Q

The type B dark cells of the cortical collecting tubule secrete _____

A
  • HCO3
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7
Q

Secretin causes the pancreas to secrete _____

A
  • Bicarbonate
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8
Q

The intercalated ducts of the pancreas secrete _____

A
  • Bicarbonate
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9
Q

Bile is secreted by the _____

A
  • Hepatocytes
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10
Q

Bile salts are synthesized by _____

A
  • Hepatocytes
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11
Q

A pancreatic centroacinar cell is a _____

A
  • Duct cell
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12
Q

Secretin is a polypeptide hormone secreted by the _____

A
  • APUD cells of the duodenum
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13
Q

Growth hormones stimulate the release of _____ by the islets of Langerhans

A
  • Insulin
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14
Q

The central feature of a hepatic acinus is a _____

A
  • Perilobular arteriole
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15
Q

The centroacinar cells of the pancreas secrete _____

A
  • Bicarbonate
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16
Q

The acini of the pancreas secrete digestive enzymes in response to _____

A
  • Cholecystokinin
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17
Q

Insulin causes hepatocytes to convert _____

A
  • Glucose to glycogen
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18
Q

Glucagon cause the _____ and the _____

A
  • Breakdown of glycogen

- Release of glucose

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19
Q

Hepatocytes get most of their oxygen by way of _____

A
  • Hepatic arteriole
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20
Q

Hepatocytes get most of their nutrients by way of _____

A
  • Portal vein
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21
Q

The center of a portal lobule is a _____

A
  • Bile ductule
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22
Q

The inner layer of smooth muscle in the wall of the ureter is _____

A
  • Longitudinal
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23
Q

The most numerous cells in the pancreas are _____

A
  • Acinar cells
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24
Q

The acinar cells of the pancreas secrete _____

A
  • Digestive enzymes
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25
Most of the vitamin A stored by the body is stored in the _____
- Ito cells of the liver
26
Ito cells of the liver store _____
- Vitamin A | - Fat
27
Blood from the pancreas drains into the _____
- Hepatic portal vein
28
Hepatocytes detoxify blood via the _____
- Cytochrome p450 system within the smooth ER
29
The principal role of renin is to
- Convert angiotensinogen to angiotensin I
30
Angiotensin increases the _____
- Blood pressure and glomerular filtration rate
31
Glomerular capillaries are almost completely surrounded by _____
- Podocytes
32
Each kidney contains _____ renal corpuscles
- 1,000,000
33
The kidney has simple squamous epithelium in the _____ and _____
- Thin segment of loop of Henle | - Parietal layer of Bowman’s capsule
34
The basal lamina separating the glomerular capillary endothelium from the pedicles of podocytes is _____ thick
- 300nm
35
A brush border of numerous long, fragile microvilli characterizes the _____
- Proximal convoluted tubule
36
The resorption of glucose by the proximal convoluted tubule depends on symportation with _____
- Na+
37
The thick segment of the ascending loop of Henle transports more _____ than anything else into the tissue fluid
- Cl-
38
Aldosterone affects sodium resorption only in the _____
- Cortical collecting tubule
39
The cells of the macula densa are _____ the other cells of the distal convoluted tubule
- Larger than
40
Calcitonin inhibits _____
- Resorption by osteoclasts
41
The visceral layer of Bowman’s capsule is composed of _____
- Podocytes
42
The resorption of phosphate by the proximal convoluted tubule is inhibited by _____
- Parathyroid hormone
43
Sodium ions return from the tissue fluid to the filtrates in the _____
- Thick descending loop of Henle
44
The cortex of the kidneys contains _____
- Proximal and distal convoluted tubules
45
Among the tubules of the kidney, the only tubule whose cells possess microvilli visible under the light microscope is _____
- Proximal convoluted tubule
46
Glomeruli are found in the _____
- Cortex
47
The smallest pores in the glomerular filter are _____
- Between the electrostatic fields of endothelial cells.
48
The brush border of the wall of the proximal convoluted tubule is made up of _____
- Microvilli
49
The sinusoids of the liver are lined by _____
- Endothelial cells
50
The center of a classical liver lobule is a _____
- Centrilobular vein (hepatic venule)
51
A glomerulus is a ball of _____
- Capillaries
52
Blood reaches hepatocytes via _____
- The sinusoids
53
The sphincter of the bladder (sphincter vesicae) is _____
- Smooth muscle
54
The only kidney tubule that has a simple squamous epithelium is the _____
- Thin segment of the loop of Henle
55
The thin segment of the descending limb of the loop of Henle is permeable to _____
- Water
56
The epithelium of the urinary bladder is separated from the muscularis by a _____
- Lamina propria
57
The renal pelvis is lined with _____
- Transitional epithelium
58
The largest cells in a transitional epithelium are in the _____
- Apical layer
59
The anus is lined by _____
- Stratified squamous epithelium
60
Water is resorbed by from the medullary collecting tubule by _____
- Facilitated diffusion
61
The medullary collecting tubules let water diffuse into the tissue fluid under the influence of _____
- Anti-diuretic hormone (ADH)
62
Water moves from the lumen of the medullary collecting tubule into the tissue fluid by _____
- Osmosis
63
Podocytes are part of the _____
- Visceral layer of Bowman’s capsule
64
A loop of Henle contributes to water conservation only if it is in the _____ of the kidney
- Medulla
65
The proximal convoluted tubule removes _______ from the glomerular filtrate
- Na+ - Ca++ - Glucose - K+ - PO4 - Amino Acids - H2O - Protein
66
Most of the cells of the pancreas are _____
- Exocrine
67
The sinusoids (capillaries) of the liver are lined by _____
- Endothelial cells
68
_____ is recovered from the glomerular filtrate in the collecting tubule
- K+
69
The thick ascending segment of the loop of Henle removes Cl- from the glomerular filtrate by using a membrane _____
- Na+/Cl- symporter
70
The distal convoluted tubule removes _____ from the glomerular filtrate by active transport
- Na+/Ca++
71
What percentage of the loops of Henle in the human kidney are long enough to make a major contribution to water conservation?
- 15%

Histology (7 decks)

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