The Urinary System Flashcards

1
Q

A wave of smooth muscle contractions that propels materials along the axis of a tube. Ex: digestive tract, ureters or the ductus deferens

A

Peristalsis

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2
Q

Eliminates the dissolved organic waste products generated by cells throughout the body:

A

Function of the urinary system

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3
Q

Regulates blood volume and blood pressure by releasing hormones into the bloodstream:

A

Function of the urinary system

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4
Q

Helps to maintain plasma ion concentrations:

A

Function of the urinary system

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5
Q

Located in the retroperitoneal space where urine is formed:

A

Kidneys

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6
Q

Ureters:

A

Used for transporting the urine to the storage compartment, the bladder, via peristalsis.

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7
Q

Passes through this to exit the body:

A

Urethra

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8
Q

Components of the urinary system are:

A
  1. Kidneys
  2. Ureters
  3. Urinary Bladder
  4. Urethra
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9
Q

Temporarily stores urine prior to elimination:

A

Urinary bladder

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10
Q

The kidney is divided into:

A

The outer cortex and inner medulla

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11
Q

Urine production occurs where:

A

Renal pyraminds

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12
Q

The medulla contains 6 to 18:

A

Renal pyramids

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13
Q

The tip of the renal pyramid is called:

A

The renal papillae

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14
Q

Renal papilla discharge urine into a cup-shaped drain called:

A

Minor calyx

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15
Q

4 or 5 minor calyces merge to form:

A

Major calyces

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16
Q

Both minor and major calyces form a large, funnel-shaped chamber called:

A

The renal pelvis

17
Q

The renal pelvis is connected to the:

A

Ureter, through which urine drains out of the kidney

18
Q

Nephron:

A

Basic functional unit in the kidney

19
Q

Nephron consists of two main parts:

A

Renal corpuscle and Renal tubule

20
Q

A round structure that consists of a cup-shaped chamber that contains a capillary network or glomerulus:

A

Renal corpuscle

21
Q

Blood arrives the glomerulus and departs the glomerulus by way of what two things:

A

Afferent arteriole- arrives

Efferent arteriole- departs

22
Q

Blood pressure forces fluid and dissolved solutes out of the glomerular capillaries and into surrounding capsular space through what process:

A

Filtration

23
Q

Filtration produces a protein-free solution known as”

A

Filtrate

24
Q

Proximal convoluted tubule (PCT), the loop of Henle and the distal convoluted tubule (DCT) are major segments of:

A

The renal tubule

25
Q

Glomerular filtration rate (GFR):

A

Simply the amount of filtrate produced by the kidneys each minute

26
Q

What are the three metabolic waste products that the kidneys remove from the blood:

A
  1. Urea- from the breakdown of amino acids
  2. Creatinine- from the breakdown of creatine phosphate
  3. Uric Acid- from the breakdown and recycling of RNA
27
Q

The DCT loops around and passes right between the afferent and efferent arterioles at a junction called:

A

Juxtaglomerular apparatus

28
Q

The renal system contributes to pH regulation by a process known as:

A

Renal compensation

29
Q

Secrete or absorb hydrogen ions or bicarbonate ions in response to changes in the fltrate pH:

A

Kidney tubules

30
Q

Increases the water permeability at the DCT and collecting duct; stimulating reabsorption of water from the tubular fluid and causes the sensationof thirst:

A

Antidiuretic hormone (ADH)

31
Q

Stimulates the reabsorption of sodium ions and the secretion of potassium ions at the DCT:

A

Aldosterone

32
Q
  1. Decreasing the rate of sodium ion absorption at the DCT leading to increased urine loss
  2. Dilating the glomerular capillaries which results in an increased GFR
  3. Inhibitsing the release of ADH, aldosterone and renin
A

Atrial Natriuretic Peptide (ANP)