Biol 373 UNit 6a Quiz and answers
100% correct 2025
Put the following in order, as viewed from the lumen of the small intestine -
correct answer ✔1. Epithelium
2. Lamina propria
3. Submucosa
4. Muscular externa (circular and longitudinal muscle layers)
5. Serosa
When comparing the microanatomy of the renal tubules versus the gut tubes,
which tissue component in the intestine is most comparable to the 'interstitium'
of the kidney? - correct answer ✔Lamina propria
The 'alkaline tide' that can be detected in plasma after ingestion of a meal is a
result of ... - correct answer ✔export of bicarbonate (in exchange for
chloride) on the basolateral membrane of acid-secreting parietal cells of the
stomach.
Which statement best describes mechanisms underlying the secretion of
saline (sodium chloride plus water) that dilutes the mucus in intestine and
salivary glands? - correct answer ✔diffusion of Cl- into the lumen through
CFTR channels, with Na+ and water following passively via the paracellular
pathway.
Assume a drug taken by injection is going to be metabolized in the liver and
excreted in the feces. Its path to the liver, and out of the liver would be ... -
correct answer ✔hepatic artery -> sinusoids -> bile canaliculi -> bile ductules
-> common hepatic duct
100% correct 2025
Put the following in order, as viewed from the lumen of the small intestine -
correct answer ✔1. Epithelium
2. Lamina propria
3. Submucosa
4. Muscular externa (circular and longitudinal muscle layers)
5. Serosa
When comparing the microanatomy of the renal tubules versus the gut tubes,
which tissue component in the intestine is most comparable to the 'interstitium'
of the kidney? - correct answer ✔Lamina propria
The 'alkaline tide' that can be detected in plasma after ingestion of a meal is a
result of ... - correct answer ✔export of bicarbonate (in exchange for
chloride) on the basolateral membrane of acid-secreting parietal cells of the
stomach.
Which statement best describes mechanisms underlying the secretion of
saline (sodium chloride plus water) that dilutes the mucus in intestine and
salivary glands? - correct answer ✔diffusion of Cl- into the lumen through
CFTR channels, with Na+ and water following passively via the paracellular
pathway.
Assume a drug taken by injection is going to be metabolized in the liver and
excreted in the feces. Its path to the liver, and out of the liver would be ... -
correct answer ✔hepatic artery -> sinusoids -> bile canaliculi -> bile ductules
-> common hepatic duct
