4. Each of the following statements concerning the hepatic sinusoids is true,
EXCEPT:
A
–arise from roundlobular arteries and roundlobular veins; B – perfuse cells with mixed
portal and arterial blood; C
– carry blood into the central veins; D – are the parts of hepatic
plates; E
– are surrounded by the space of Disse.
5. Each of the following statements concerning the portal area (the triad) is true,
EXCEPT:
A
– includes the central vein from the hepatic vein system; B – includes the interlobular
bile duct; C
– includes the interlobular vein from the portal vein system; D – includes the
interlobular artery from the hepatic artery system; E
– is surrounded by a small amount of
loose connective tissue.
6. The central vein and the sublobular vein of the liver have common features,
EXCEPT:
A
– belong to the hepatic vein system; B – have equal diameters and wall thickness; C –
are fibre type veins; D
– are solitary veins (travel alone); E – carry blood away from the
liver.
7. Each of the following statements concerning the hepatocytes is true, EXCEPT:
A
– are large polygonal cells; B – have one or two nuclei with well-developed nucleoli; C –
many of them are tetraploid; D
– are not capable of regeneration when the liver substance
is lost; E
– are arranged in plates.
8. Each of the following statements concerning the hepatocyte organelles is true,
EXCEPT:
A
– Golgi apparatus and lysosomes are absent; B – sER is involved in the degradation of
toxins and drugs, the synthesis of cholesterol and lipids; C
– peroxisomes are involved in
the breakdown of hydrogen peroxide and in alcohol metabolism; D
– rER is involved in
protein synthesis; E
– numerous mitochondria reflect the high energy requirement.
9. Each of the following statements concerning the bile canaliculi is true, EXCEPT:
A
– are intercellular gaps between the hepatocytes within the plates; B – drain bile into the
roundlobular and interlobular ducts; C
– have their own walls; D – hepatocyte microvilli
project into their lumen; E
– are isolated from the intercellular compartment by tight
junctions.
10. Each of the following statements concerning the perisinusoidal space of Disse
is true, EXCEPT:
A
– lies between the hepatocyte basal surfaces and the endothelial cell basal surfaces; B
– contains few reticular fibres; C – hepatocyte microvilli project into this space; D – fetal
hemopoiesis occurs here; E
– is the site of exchange between bile and hepatocytes.
11. Each of the following statements concerning the exocrine part of pancreas is
true, EXCEPT:
A
– is a compound branched acinar gland; B – produces pancreatic juice; C – its acini
secrete digestive enzymes: trypsin, amylase, and lipase; D
– its intercalated ducts secrete
fluid rich in sodium and bicarbonate; E
– its secretion enters the stomach.
12. Each of the following statements concerning the pancreatic acini is true,
EXCEPT:
A
– consist of pyramidal serous cells; B – basal portions of cells are acidophilic; C – the
cell basal cytoplasm abounds in rER; D
– apical portions of cells are acidophilic; E – the
cell apical cytoplasm contains zymogen (secretory) granules.
13. Each of the following statements concerning the pancreatic islets is true,
EXCEPT:
A
– are scattered throughout the organ; B – are more numerous in the pancreas tail; C –
contain five types of endocrine cells; D
– lack blood capillaries; E – autonomic nerves are
in contact with endocrine cells and influence the hormone secretion.