< Histology MCQs
Mock credit test. Only one answer is correct.
1 The specimen was processed for staining with Sudan Red dye. Which step of common processing has been skipped?
2 Mutation of a gene for protein associated with microtubules often leads to respiratory diseases and male infertility due to immobility of spermatozoa. What protein is damaged?
3 Which organelle is a site for production of rRNA?
4 Intermediate filaments are involved in the structure of a nuclear envelope. How are called proteins of these intermediate filaments?
5 Which cellular structure is main site of glycosylation (O-glycosylation) of proteins?
6 What is main function of zonula occludens (tight junction)?
7 Which day after ovulation does implantation usually start?
8 Which embryonic structure gives rise an extraembryonic mesoderm?
9 Where does the primitive node (node of Hensen) take place?
10 Which structures are connected by canalis neurentericus?
11 Which of the following molecules has the main contribution to the differentiation and development of the cranial part of the embryo?
12 What is the embryonic origin of melanocytes?
13 A part of an embryo develops temporary structures called somites. Which part is it?
14 Which embryonic structure does give rise to a nephrogenic blastema?
15 Which protein is probably the main protein of cytoskeletal filaments associated with hemidesmosomes of enterocytes?
16 Epithelial cells with well-developed basal labyrinth have pronounced one function. Which one?
17 Which staining is proving that the specimen of a planar epithelium contains goblet cells?
18 Two samples of liver have been harvested from a healthy volunteer briefly after food and after a period of fasting. The first sample contains plenty of PAS-positive granules, whereas the second sample contains few of them only. From which material are those granules composed?
19 Let us take the same situation as in the previous question- liver with granules of glycogen. Sometimes, especially under pathological conditions, the liver can contain PAS-positive granules composed of material other than glycogen. How to prove that the granules are really composed of glycogen?
20 In an adult human body, only one organ contains reticular epithelium. Which one?
21 Plasma cells have several morphological hallmarks. One of them is a juxtanuclear clearing (site of lower stainability of cytoplasm close to the nucleus) on histological specimens. Which organelle takes place in the site of the juxtanuclear clearing?
22 Imagine the function of a fibroblast and decide the question about the stainability of its cytoplasm in basic staining techniques.
23 Which part of a cell does produce hyaluronic acid?
24 Jelly-like connective tissue is an uncommon type of tissue. Where can one find it?
25 Which type of collagen is the main protein of the fibrillary component of the ECM of primary bone?
26 How many dendrites has a bipolar neuron?
27 Histological specimens of peripheral nerves of a patient with a certain disease show dropouts of stainability by Luxol Blue. What will be the most pronounced clinical manifestation?
28 Imagine the red lineage of hematopoiesis. Which stage of the lineage precedes the stage of polychromatophilic erythroblast?
29 Pronounced muscle stiffness called rigor mortis develops within several hours after death. The strength of the contraction is in the intensity comparable with maximal voluntary contraction. Use your knowledge and choose the most plausible hypothesis about the mechanism behind rigor mortis.
30 From the perspective of a secretory cell, holocrine secretion is similar to one of the following historical events. Which one?
