Bio 202 Final Exam Penkrot ASU
Understand the function of the glomerulus and the glomerular capsule? - answerThe
glomerulus is the site of filtration for ions(sodium and amino acids) and proteins to be
filtered into the capsule or Bowmans Capsule.
What are the different types of nephrons? - answerJuxtamedullary(Long loops of henle
that extend into the kidneys medulla) and cortical(Short Loops of henle embedded in the
kidneys cortex)
What is the renal plexus? - answerSource of nervous tissue innervation within the
kidney that effects arterioles size within the renal cortex.
What is the flow of filtration through the renal tubule? - answerproximal convoluted
tubule -->loop of henley--->distal convoluted tubule--->collecting tubule--->unite to form
papillary duct
What is allowed to pass through the glomerulus and what is retained in the blood? -
answerWhat passes through in the filtrate is sodium ions, amino acids and sometimes
glucose. What is retained in the blood are larger proteins as well as red and white blood
cells.
What is the net filtration pressure? - answer1 or 2 MMhg
What is Renal Autoregulation? - answerThe kidney changes its own blood flow in
response to changes in the sodium concentration of the interstitial fluid.
what is Sympathetic regulation ? - answerThis regulation overrides autoregulation and
acts upon the afferent arteriole to cause contractions and slow GFR
What is Hormonal Control of the GFR? - answerthe sympathetic nervous system
stimulates renin secretion by the juxtaglomerular cells, activating the renin-angiotensin-
aldosterone system (RAAS). The RAAS increases extracellular fluid volume by
increasing sodium reabsorption
What items are reapsorbed/secreted at the PCT and DCT? - answerPCT: Sodium Ions,
Water
DCT: Urea
Where is water reabsorbed at? - answerWater is reabsorbed on the descending portion
of the loop of henle.
Understand the function of the glomerulus and the glomerular capsule? - answerThe
glomerulus is the site of filtration for ions(sodium and amino acids) and proteins to be
filtered into the capsule or Bowmans Capsule.
What are the different types of nephrons? - answerJuxtamedullary(Long loops of henle
that extend into the kidneys medulla) and cortical(Short Loops of henle embedded in the
kidneys cortex)
What is the renal plexus? - answerSource of nervous tissue innervation within the
kidney that effects arterioles size within the renal cortex.
What is the flow of filtration through the renal tubule? - answerproximal convoluted
tubule -->loop of henley--->distal convoluted tubule--->collecting tubule--->unite to form
papillary duct
What is allowed to pass through the glomerulus and what is retained in the blood? -
answerWhat passes through in the filtrate is sodium ions, amino acids and sometimes
glucose. What is retained in the blood are larger proteins as well as red and white blood
cells.
What is the net filtration pressure? - answer1 or 2 MMhg
What is Renal Autoregulation? - answerThe kidney changes its own blood flow in
response to changes in the sodium concentration of the interstitial fluid.
what is Sympathetic regulation ? - answerThis regulation overrides autoregulation and
acts upon the afferent arteriole to cause contractions and slow GFR
What is Hormonal Control of the GFR? - answerthe sympathetic nervous system
stimulates renin secretion by the juxtaglomerular cells, activating the renin-angiotensin-
aldosterone system (RAAS). The RAAS increases extracellular fluid volume by
increasing sodium reabsorption
What items are reapsorbed/secreted at the PCT and DCT? - answerPCT: Sodium Ions,
Water
DCT: Urea
Where is water reabsorbed at? - answerWater is reabsorbed on the descending portion
of the loop of henle.
