Nephron Nonsense Flashcards
What is the primary function of the glomerulus in the nephron?
a) Reabsorption
b) Filtration
c) Secretion
d) Storage
b) Filtration
Which part of the nephron is responsible for the majority of water reabsorption?
a) Proximal convoluted tubule
b) Loop of Henle
c) Distal convoluted tubule
d) Collecting duct
a) proximal convoluted tubule
What hormone is responsible for regulating water reabsorption in the collecting ducts?
a) Aldosterone
b) Antidiuretic hormone (ADH)
c) Insulin
d) Cortisol
b) Antidiuretic hormone (ADH)
In which part of the nephron does secretion primarily occur?
a) Proximal convoluted tubule
b) Loop of Henle
c) Distal convoluted tubule
d) Glomerulus
c) distal convoluted tubule
True or False: Glucose is normally found in urine under healthy conditions.
False
What is the main function of the loop of Henle?
a) Filtration
b) Reabsorption of water and ions
c) Secretion of waste products
d) Storage of urine
b) Reabsorption of water and ions
Which blood vessel delivers blood to the glomerulus for filtration?
a) Renal vein
b) Renal artery
c) Aorta
d) Inferior vena cava
b) renal artery
What structure connects each kidney to the bladder, allowing urine to flow?
a) Urethra
b) Ureter
c) Nephron
d) Renal pelvis
b) ureter
Which layer of the kidney is responsible for protecting and holding the kidneys in place?
- a) Renal capsule
- b) Renal medulla
- c) Renal pelvis
- d) Renal fascia
d) Renal fascia
True or False: The kidneys play a crucial role in maintaining blood pressure through the renin-angiotensin-aldosterone system.
True
What is the primary function of the renal pelvis?
- a) Filtration
- b) Reabsorption
- c) Storage of urine
- d) Secretion
c) Storage of urine
Which part of the nephron is responsible for fine-tuning sodium and potassium balance?
- a) Proximal convoluted tubule
- b) Loop of Henle
- c) Distal convoluted tubule
- d) Collecting duct
c) Distal convoluted tubule
What is the normal pH range of urine in humans?
- a) 2.0-3.0
- b) 4.5-6.0
- c) 7.0-7.5
- d) 8.5-9.0
b) 4.5-6.0
True or False: The juxtaglomerular apparatus is involved in the regulation of blood pressure and filtration rate.
True
What is the role of the afferent arteriole in the glomerulus?
- a) Blood exit
- b) Blood entry
- c) Filtrate exit
- d) Filtrate entry
b) Blood entry
Which hormone stimulates the production of red blood cells and is produced by the kidneys?
- a) Insulin
- b) Erythropoietin
- c) Cortisol
- d) Thyroxine
b) Erythropoietin
Where does the majority of nutrient reabsorption occur in the nephron?
- a) Proximal convoluted tubule
- b) Loop of Henle
- c) Distal convoluted tubule
- d) Collecting duct
a) Proximal convoluted tubule
True or False: The renal corpuscle consists of the Bowman’s capsule and the glomerulus.
True
What is the term for the process by which substances move from the blood into the renal tubules?
- a) Filtration
- b) Reabsorption
- c) Secretion
- d) Osmosis
c) Secretion
What is the main function of the Bowman’s capsule in the nephron?
- a) Reabsorption
- b) Filtration
- c) Secretion
- d) Storage
b) Filtration
True or False: The majority of water reabsorption in the nephron occurs in the loop of Henle.
False
Which hormone is responsible for regulating sodium and potassium balance in the nephron?
- a) Antidiuretic hormone (ADH)
- b) Aldosterone
- c) Erythropoietin
- d) Insulin
b) Aldosterone
What is the purpose of the countercurrent multiplication in the loop of Henle?
- a) Filtration
- b) Osmotic balance
- c) Temperature regulation
- d) Acid-base balance
b) Osmotic balance
True or False: The urethra is longer in males than in females.
False
What is the term for the process by which substances move from the renal tubules back into the bloodstream?
- a) Filtration
- b) Reabsorption
- c) Secretion
- d) Excretion
b) Reabsorption
Where in the nephron does the majority of filtrate reabsorption occur?
- a) Proximal convoluted tubule
- b) Loop of Henle
- c) Distal convoluted tubule
- d) Collecting duct
a) Proximal convoluted tubule
What is the primary component of urine that gives it its yellow color?
- a) Urea
- b) Creatinine
- c) Bilirubin
- d) Urochrome
d) Urochrome
True or False: The renal medulla is responsible for the production of erythropoietin.
False
Which structure protects the kidneys from mechanical shock and maintains their position within the abdominal cavity?
- a) Renal capsule
- b) Renal cortex
- c) Renal pelvis
- d) Perirenal fat capsule
d) Perirenal fat capsule
What is the primary function of the collecting duct in the nephron?
- a) Filtration
- b) Reabsorption
- c) Secretion
- d) Concentration of urine
d) Concentration of urine
True or False: Glomerular filtration rate (GFR) is the amount of filtrate formed by the kidneys per minute.
True
What is the role of the macula densa in the juxtaglomerular apparatus?
- a) Blood filtration
- b) Osmotic balance
- c) Blood pressure regulation
- d) Sodium and potassium sensing
d) Sodium and potassium sensing
In which renal structure does the final concentration of urine occur?
- a) Proximal convoluted tubule
- b) Loop of Henle
- c) Distal convoluted tubule
- d) Collecting duct
d) Collecting duct
True or False: The renal arteries carry oxygenated blood to the kidneys.
True
What is the term for the network of capillaries in the renal corpuscle responsible for filtration?
- a) Peritubular capillaries
- b) Vasa recta
- c) Afferent arteriole
- d) Glomerulus
d) Glomerulus
What is the main component of urine that indicates abnormal kidney function when elevated in the blood?
- a) Urea
- b) Creatinine
- c) Sodium
- d) Glucose
b) Creatinine
True or False: The ureters use peristaltic contractions to move urine from the kidneys to the bladder.
True
Which segment of the nephron is responsible for the reabsorption of water and electrolytes under the influence of antidiuretic hormone (ADH)?
- a) Proximal convoluted tubule
- b) Loop of Henle
- c) Distal convoluted tubule
- d) Collecting duct
d) Collecting duct
What is the term for the involuntary discharge of urine from the bladder?
- a) Micturition
- b) Diuresis
- c) Incontinence
- d) Osmosis
c) Incontinence
What process takes place in the glomerulus of the renal corpuscle.
Filtration
True or False: during filtration blood is filtered, and a fluid called glomerular filtrate is formed.
True
Is filtration a selective process, allowing only specific substances into the nephron?
a) Yes
b) No
b) No - Filtration is non-selective, allowing both waste and essential substances into the nephron.
What substances are selectively reabsorbed back into the bloodstream during reabsorption?
a) Urea and creatinine
b) Water, glucose, and electrolytes
c) Bilirubin and uric acid
d) Nitrogenous waste products
b) Water, glucose, and electrolytes
Does the process of reabsorption contribute to the maintenance of the body’s balance of water and electrolytes?
a) Yes
b) No
Yes
Reabsorption occurs in the renal tubules. What do the renal tubules consist of?
a) Loop of Henle, glomerulus, distal convoluted tubule.
b) Proximal convoluted tubule, loop of Henle, distal convoluted tubule.
c) Collecting ducts, proximal convoluted tubule, glomerulus.
d) Loop of Henle, glomerulus, proximal convoluted tubule.
b) Proximal convoluted tubule, loop of Henle, distal convoluted tubule.
What is the process that involves the selective movement of substances (drugs, excess ions) from the blood into the renal tubules?
Secretion
What is the primary function of secretion in urine formation?
a) Filtration of blood
b) Reabsorption of water
c) Elimination of waste products
d) Storage of urine
c) Elimination of waste products
What role does secretion play in regulating the body’s pH?
By selectively moving hydrogen ions (H+) and bicarbonate ions (HCO3-) from the blood into the renal tubules.
What is the composition of the remaining fluid in the renal tubules after filtration and reabsorption?
a) Glomerular filtrate
b) Tubular fluid
c) Renal plasma
d) Urine
d) Urine
Where is urine temporarily stored before elimination?
a) Renal pelvis
b) Proximal convoluted tubule
c) Urethra
d) Bladder
d) Bladder
What controls the release of urine from the bladder?
a) Renin
b) Sphincter muscles
c) ADH
d) Aldosterone
b) Sphincter muscles
What triggers the release of urine from the bladder?
a) Hormonal signals
b) Muscular contractions
c) Electrolyte balance
d) Oxygen levels
b) Muscular contractions
Until reaching a certain volume, where is urine stored in the body?
a) Proximal convoluted tubule
b) Loop of Henle
c) Bladder
d) Renal pelvis
c) Bladder
The starting letter for the each stage of urine production is FRSFS… make a way of remembering this.
Fuck I: Filtration
Really: Reabsorption
Should: Secretion
Finish: Formation of Urine
Studying: Storage and Elimination
Fancy: Filtration
Racoons: Reabsorption
Sipping: Secretion
Fine: Formation of urine
Scotch: Storage and elimination
Flirtatious: Filtration
Rabbits: Reabsorption
Sip: Secretion
Fancy: Formation of urine
Sangria: Storage and elimination
What is the first stage in the process of urine formation and what occurs during this phase?
Filtration:
- Takes place in the glomerulus of the renal corpuscle.
- Blood is filtered, and a fluid called glomerular filtrate is formed.
- Filtration is non-selective, allowing both waste and essential substances into the nephron.
What is the second stage in the process of urine formation and what occurs during this phase?
Reabsorption:
- Occurs in the renal tubules (proximal convoluted tubule, loop of Henle, distal convoluted tubule).
- Essential substances such as water, glucose, and electrolytes are selectively reabsorbed back into the bloodstream.
- This process helps maintain the body’s balance of water and electrolytes.
What is the third stage in the process of urine formation and what occurs during this phase?
Secretion:
- Involves the selective movement of substances (e.g., drugs, excess ions) from the blood into the renal tubules.
- Enhances the elimination of certain waste products and helps regulate the body’s pH.
What is the fourth stage in the process of urine formation and what occurs during this phase?
Formation of Urine:
- The remaining fluid in the renal tubules, now referred to as urine, contains waste products, excess ions, and water.
- This urine is then transported to the renal pelvis and down the ureters to the bladder for temporary storage.
What is the fifth stage in the process of urine formation and what occurs during this phase?
Storage and Elimination:
- Urine is stored in the bladder until it reaches a certain volume.
- The release of urine is controlled by the sphincter muscles, and the process is initiated by signals from the nervous system.
Draw a nephron and label the following on it:
- Glomerulus
- Proximal convoluted tubule
- Descending loop of Henle
- Ascending loop of Henle
- Distal tubule
- Collecting duct
https://byjus.com/biology/urine-formation-osmoregulation/
