QuestionSBA
QuestionChoice
The DCT regulates pH by absorbing bicarbonate and secreting protons (H+) into the filtrate.
10001639
c
Distal convoluted tubule (DCT)
QuestionChoice
This is the filtering unit of the kidney. It filters small solutes from the blood.
10001640
d
Glomerulus
QuestionChoice
Afferent arterioles have two functions: they serve to connect the renal artery to the glomerular capillaries and they take an active role in controlling not only the local blood pressure inside the kidney but also the body's overall blood pressure. An efferent arteriole is a blood vessel in the urinary system that brings filtered blood from the glomerulus to the rest of the kidney and back to the general circulation.
10001641
e
Afferent arteriole
QuestionChoice
The proximal convoluted tubule avidly reabsorbs filtered glucose into the peritubular capillaries so that it is all reabsorbed by the end of the proximal tubule. The PCT secretes acids and bases e.g. bile salts, oxalate and catecholamines (waste products of metabolism), and hydrogen ions (H+) – important in maintaining acid/base balance in the body. H+ secretion allows the reabsorption of bicarbonate via the use of the enzyme carbonic anhydrase.
10001637
a
Proximal convoluted tubule (PCT)
QuestionChoice
The collecting ducts are the last opportunity to resorb H2O and concentrate urine before they lead urine to the minor calyces. Antidiuretic Hormone (ADH, from the hypothalamus) directs the collecting ducts to concentrate urine.
10001638
b
Collecting duct
Concept
Chapter
2693
3953
Water and solute absorption
Topic
168
Renal Physiology
12874
Where does the majority of water reabsorption occur within the kidney?
a