Kidney 1 Flashcards

1
Q

What is the #1 function of the kidneys?

A

Maintain a stable internal environment

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2
Q

How is the function of maintaining stable internal environment achieved?

A
  • filtration

- collection

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3
Q

What processes allow for the formation of urine?

A
  • glomerular filtration
  • rubular reabsorption
  • secretion

all within the kidney

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4
Q

How does the bladder interact with the kidneys?

A

Stores the urine received from the kidney by way of the ureters

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5
Q

Urine is released through the ______

A

Urethra

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6
Q

Endocrine function of the kidney (overall)

A

Secretes

  • renin
  • erythropoiten
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7
Q

Renin regulates

A

BP

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8
Q

Erythropoietin causes

A

Erythrocyte production

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9
Q

What do the kidneys do in times of severe fasting (overall)?

A

Synthesize glucose from amino acids

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10
Q

Which kidney is lower and why?

A
  • right

- liver pushes down on it

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11
Q

How long does it take for the kidneys to filter all of your blood?

A

About 5 minutes

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12
Q

Where are the kidneys located with respect to the viscera?

A

Outside the peritoneal cavity

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13
Q

What is the functional unit of the kidney?

A

Nephron

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14
Q

How many nephrons?

A

~ 1.2 million per kidney

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15
Q

What are the nephrons responsible for?

A
  • filtration

- collection

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16
Q

Nephrons are made up of _______ structures that function to form ______ via _______ and ______

A
  • tubular
  • urine
  • secretion
  • absorption
17
Q

What composes the nephron?

A
  • Glomerulus
  • Bowman’s capsule
  • Proximal convoluted tubule
  • Loop of Henle
  • Distal convoluted tubule
  • Collecting duct
18
Q

The glomerulus and Bowman’s capsule make up the _____

A

Renal corpuscle

19
Q

What is the glomerulus?

A

Tuft of capillaries

20
Q

What is Bowman’s capsule?

A
  • surrounds glomerular capillaries

- works to collect filtrate from the glomerulus

21
Q

This is the structural unit of the kidney

22
Q

How many lobes per kidney?

23
Q

The lobes of the kidneys contain these structures

A
  • pyramids

- overlying cortex

24
Q

Renal capsule

A

surrounds each kidney and is embedded in a mass of fat

25
Renal capsule function
Protects the kidney from trauma
26
Renal fascia =
Fibrous tissue that attaches kidney to posterior abdominal wall
27
Cortex =
- outer layer of kidney | - contains glomeruli, most of proximal tubule, and some distal tubule
28
Medulla =
- inner region of kidney | - contains primarily pyramids
29
Hilum =
Central indentation where blood vessels, nerves, lymphatics, and ureter enter and exit
30
Pyramids contain
- loop of Henle | - collecting ducts
31
Calyx =
Chambers that receive urine from collecting ducts, forming entry into renal pelvis