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146 Cards in this Set

  • Front
  • Back

Water moves by filtration, which is

Osmosis under pressure

Even is you don't drink liquids, you will still produce urine due to

Metabolism fluids-10% of urine

What is the role of Osmotic pressure?

To suck water back into capillaries

The hypothalamus has osmoreceptors, what do they do?

Check the water concentration in the blood

Barorecptors are pressure receptors, that send messages to _________ to double check ________ __________

The hypothalamus. /. Fluid balance

What action does ADH have

Tells kidneys to reabsorb water

What action does Aldosterone have?

Tells kidneys to retain sodium, which retains water and excretes potassium

What action does PTH have?

Defense against low calcium levels

What action does Calcitonin have?

Defends against high calcium levels

What action does ANH/ANP have?

Tells kidneys to release water

What action does EPO have?

Promotes the development of Hgb and RBC

Fluid volume deficit results in

Low BP, Na+ concentration rises, osmolarity increases

Fluid volume excess results in

High BP, Na+ concentration lowers, osmolarity decreases

What's the normal range of sodium?

136-146mEq/L

What's the most abundant cation of ECF?

Sodium

Examples of Cations

Na+


K+


Mg2+. (mag)


Ca2+

Example of Anion

Cl-

Sodium is responsible for the electrical activity of

Muscles and nerve cells

How does our body correct Hyponatremia?

By releasing Aldosterone or makes us thirsty

How does our body correct Hypernatremia?

By releasing ADH (Antidiuretic Hormone)


Tells kidneys to retain fluid

Cations are ______ charged

Positively

What's the normal ranges for Potassium?

3.8-5.0 mEq/L

What's the most abundant cation of ICF?

Potassium

What's the most dangerous of all electrolyte imbalances?

Potassium imbalance

What creates most of the Osmotic pressure in the ICF?

Potassium

What are the to places Angiotensin II goes to work

Blood vessels and adrenal glands to release Aldosterone

What causes Hyperkalemia?

Kidney failure

How can Hyperkalemia be corrected?

Dialysis

What is the ionized Ca+ level ranges?

4.6-5.5 mEq/L

Calcium is essential for

Blood clotting

What hormone corrects Hypocalcemia?

PTH

What hormone corrects Hypercalcemia?

Calcitonin

What's the most abundant anion in ECF?

Chloride

Normal blood level ranges for Chloride?

95-103mEq/L

pH level is high and Hydrogen level is low- means blood is

Alkaline or basic

pH level is low and Hydrogen level is high means blood is

Acidic

Normal range for the pH of blood?

7.35-7.45

What are the three systems/mechanisms that regulate Hydrogen and maintain balance?

Chemical buffer system


Respiratory mechanisms


Renal mechanisms

Describe to the Chemical buffer system

Small . Always around. Fast but weak

Describe the Respiratory mechanism

Stronger than chemical buffer but slower

Describe the Renal mechanism

Most powerful. Takes the longest

What system prevents drastic changes in the pH?

Chemical Buffer system

The Chemical buffer system includes three systems of its own. What are they?

Bicarbonate buffer system


Phosphate buffer system


Protein buffer system

The phosphate buffer is important in the regulation of

pH of blood in the kidneys

The _____ buffer system is important in the ECF

Bicarbonate

The _______ buffer system is the most important one in the ICF

Protein

When the Respiratory rate slows, it retains CO2. What does this do to pH?

Lowers pH- becoming more acidic

When the Respiratory rate increases, expelling CO2. What does this do to pH?

Raises pH- becoming less acidic

Explain the Renal mechanism -pH vs Hydrogen

Less hydrogen = high pH


More hydrogen= low pH

Hydrogen is external and reabsorbed by the

Kidneys

Acidosis causes _________ of the CNS

Depression

Alkalosis causes __________ of the CNS & PNS

Irritability

Acidosis can cause

Ketoacidosis

When a loss of gastric juices happens- through Suctioning etc. What could happen

Pt could have alkalosis

What does ROME stand for

Respiratory


Opposite


Metabolic


Equal

What are the normal lab ranges for CO2?

35-45

What are the normal lab ranges for HCO3?

22-28

Respiratory Acidosis means the pH____, CO2____& the HCO3______

Low, high, normal

Respiratory Alkalosis means pH___, CO2_____&HCO3______

High, low, normal

Metabolic Acidosis means pH_____,CO2______&HCO3______

Low, normal, low

Metabolic aklalosis means pH____,CO2_____&HCO3______

High, normal, high

ABG stands for

Arterioles Blood Gases

Three functions of the urinary system

Removes wastes


Regulates water and electrolyte balance


pH

What bone structure protects the kidneys

Bottom two ribs

Where do the ureters enter into the bladder

Bottom, backside of bladder

What glands sit on top of the kidneys?

Adrenal glands

The Renal cortex is the ______ layer of the kidneys

Outer

The Renal medulla are _______ shaped, and are connected to ______

Triangle. /. Calyces

What are Calyces?

Passageways for urine, as it travels to the Renal Pelvis

A kidney consists of approximately one million Nephrons. What is a Nephron?

The functional unit of the kidneys where urine is formed

Efferent arterioles are much smaller/skinnier than Afferent arterioles, which results in

An increase in BP

The Calyx dumps into the Renal Pelvis then into the ureters then

Into the bladder

The Nephron is responsible for

Filtration and collection

Nephrons are located within the Renal cortex (shell) and the

Renal medulla (middle)

The first part of the kidneys where urine will be present, is the

Renal calyx

The Nephron starts in the Renal cortex and "dips" down into the Renal medullas. The "dips" are called

The Loop of Henle

What does osmolarity mean

The Osmotic pressure of a solution

The glomerulus is very

Porous

Filtration of the Nephron takes places in the

Glomerus

Reabsorption of needed nutrients happens in the

Proximal tubules

The Loop of Henle makes the Medulla

Salty - to draw out water

What hormone dictates how porous the collecting ducts of nephrons are

ADH

Majority of reabsorption happens in the _________ of to the Nephron

Proximal tubule

Is energy used in the Loop of Henle to absorb water into the medulla?

No- salt in the medulla draws it out

Juxtaglomerular apparatus controls BP, it is located between

The glomerulus and the distal tubule

What is absorbed into the collecting ducts in the medulla?

Urea

Urea is absorbed to help maintain

Osmolarity

The Efferent arterioles branch off into

Peritubular capillaries

Peritubular capillaries lead in to the ____ _______

Renal vein

What does Micturition mean

To pee

The ________ _________ ____________ is the involuntary muscle that controls when you release urine

Internal urethral sphincter

The external urethral sphincter is made up of

Skeletal muscles- voluntary

What is the first process of Glomerular filtration?

Blood enters glomerulus under high pressure via the Afferent arteriole

Since the glomerulus capillaries are very porous, this allows water and small particles to leave the capillaries and enter into

The Bowman's capsule

What is the average Glomerular filtration rate (GFR) per minute

100-125ml per minute

What types of waste products are secreted it of blood into renal filtrate?

Ammonia, uric acid, meds

What does ADH do to BP

Increases it

What does Aldosterone do to BP

Increases it

What does ANH do to BP?

Lowers it

What does PTH do to BP

Nothing

Hypoxia tells your body to secrete what

EPO (erythropoietin)

Low BP makes the kidneys secrete

Renin

The average amount of urine produced per hour is

33-83mL

The average amount of urine produced per day is

1-2L a day

Average pH of urine is

6

What is the normal range of pH for urine

4.5-8

What does finding ketones in a urinalysis signify?

A shortage of insulin in the blood- the body uses broken down body fat and not glucose

Ketones found in urine usually signify

Type 1 diabetes

What is a Trigone?

The triangular region at the base of the bladder

What two things typically are the result of a high glucose urinalysis?

Pregnancy or diabetes

Rugae is another word for

Folds

What is the lining of the bladder made up of?

Mucous transitional Epithelium

The wall of the bladder consists of how many layers?

Three

When the bladder fills to approximately 200mL a message is sent to the _______ ________ to release

Spinal cord

In the urinary system, the paired organs are

Kidneys and ureters

A kidney infection is called

Nephritis

The Renal arteries are branches of the abdominal Aorta, the renal veins empty into

The inferior vena cava

Kidneys eliminate wastes, maintain blood volume and

Maintain blood pressure

The kidneys are able to correct acidosis by excreting

Hydrogen ions

Kidneys produce urine from

Blood plasma

Ureters carry trying from the kidneys to the

Bladder

When do kidneys produce Epo?

When there is a need for more RBC

Kidneys are located just below

The diaphragm

Small proteins are received by

Pinocytosis

Uric acid comes from the metabolism of

Nucleic acids

ADH directly increases the reabsorption of

Water

ANP increases the excretion of

Sodium ions

Aldosterone increases the reabsorption of

Sodium ions

Renin begins a series of reactions that result in the formation of

Angiotensin II

Angiotensin II stimulates secretion of Aldosterone by the

Adrenal cortex

The substrate of renin is Angiotensin, that's produced by

The liver

The average amount of water loss for the average person, per day is

2-3 liters

The organs that are MOST responsible for maintain blood pH and tissue fluid are

Kidneys

What is the largest water compartment of the body

Intracellular fluid

Part of the brain that regulates water content in the body, is the

Hypothalamus

Hormone that increases water reabsorption

ADH

Hormone that increases reabsorption of sodium

Aldosterone

Hormone that increases the excretion of potassium

Aldosterone

Hormone that increases the excretion of sodium

ANP

Proteins may act as buffers for either acids or bases because

They can either pick up or donate an H+ ion

Over hydration will cause urine to have a ______ ________ gravity

Low specific

Severe acidosis has it's greatest effects on the

CNS

Edema is abnormal accumulation of

Tissue fluid

Kidney tubule cells use bicarbonate buffer system to excrete hydrogen ions to help

Raise blood pH to a normal range

The most important cation in ECF is

Sodium

The most important cation in ICF is

Potassium