Histology 1

通報

問題一覧

Indicate the source of development of epidermis, neural crests and mammary glands?

Ectoderm

Which structure was secreted zona pellucida?

follicular cells

Which one of the following is typical for cortical reaction?

releasing lysosomal enzymes from cortical granules lining the plasma membrane of the oocyte

Which characteristic possesses is primordial follicule?

composed of a primary oocyte together with its surrounding flat epithelial cells

When permeability of the zona pellucida is changed?

head of the sperm comes in contact with the oocyte surface

Which one of the following sentences is corresponds to structure antrum?

fluid-filled space between granulosae cells

What is the calcium-binding protein of the smooth muscle tissue?

Calmodulin

What kind of feature has not thin filaments? 1) anchor the nucleus in place 2) are composed of two chains of globular subunits 3) constitute about 15% of the total protein content of non-muscle cells 4) are 6nm thick 5) form a deformable three-dimensional structural framework for the cell

1, 5

What structure are myofilaments?

proteins responsible for the contractile capability of the cell.

During the process of spermiogenesis, which cells differentiate into sperms (spermatozoa)?

there is no correct answer

What of the following give rise to bone tissue?

Paraxial mesoderm

Which intercellular junctions are located more apically?

Zonula occludens

Indicate the source of development of the epithelium of the pancreas, gastric glands:

Endoderm

What peculiarities are possesses intermediate filaments? 1) active participant in cellular motion 2) form a deformable three-dimensional structural framework for the cell 3) possess a faster growing plus end and a slower growing minus end 4) anchor the nucleus in place 5) provide an adaptable connection between the cell membrane and cytoskeleton

2, 4, 5

Which numbers are perforation of the oocyte, exocytosis of cortical granules and zona reaction shown?

8, 9, 11

Which event mediated by the interaction of integrins on the oocyte and their ligands-disintegrins on sperm?

The initial adhesion of sperm to the oocyte

Where is found the simple columnar ciliated epithelium?

There is no correct answer

During the process of spermiogenesis, which cells differentiate into sperms (spermatozoa)?

Spermatids

At which stage of development does a fertilized ovum undergo implantation?

Blastocyst

What kind of feature has the membrane of RER? 1) sequestering calcium ions from the cytosol 2) has binding sites for small subunit of ribosome 3) constituting integral proteins that function in recognizing ribosome to its cytosolic surface 4) constituting integral proteins that function in binding ribosome to its cytosolic surface 5) constituting integral proteins that function maintains the flattened morphology of the cisterns

3, 4, 5

The pigment of aging in neurons is:

Lipofuscin

Which one of the following is characterized the epiblast layer?

a layer of high columnar cells adjacent to the amniotic cavity

Which one of the following is characterized the amniotic cavity?

a small cavity appears within the epiblast

Which intercellular junctions contain intermediate filaments?

Macula adherens

When occurs the implantation?

at the end of the first week

Which protein mediates retrograde transport from the TGN back to the rER?

COP -I

Identify the structure, which contains enzymes to assist in penetration of the egg and its surrounding layers during fertilization.

acrosome

Which peculiarities possess is primary oocytes?

is formed by when oogonia arrest their cell division in prophase of meiosis I

Which structures are induced the overlying ectoderm to thickening?

the notochord and prechordal mesoderm

What kind of properties do not have satellite cells in skeletal muscle tissue? 1) sharing the muscle fiber's external lamina 2) act as regenerative cells 3) The chromatin network of the nucleus is denser and coarser 4) long, cylindrical, multinucleated, and striated 5) their numerous nuclei peripherally located just beneath the cell membrane

4, 5

Which numbers are ribosome, inner core ring and lumunal ring shown?

2, 5, 7

Which cells are refers mesenchymal?

There is no correct answer

What is called lateral plate of the mesodermal layer which continuous with mesoderm covering the amnion?

There is no correct answer

Which numbers are osteocyte processes shown?

Which structures are present in cardiomyocyte?

dyads

What is called lateral plate of the mesodermal layer which continuous with mesoderm covering the amnion?

There is no correct answer

Which numbers are middle piece of flagellum, basal body and acrosome shown?

3, 7, 10

How is called the layer of cells covering the yolk sac externally?

There is no correct answer

Which tissue is called dense regular connective tissue?

When fiber bundles of the tissue are arranged in parallel or organized fashion

What is called lateral plate of the mesodermal layer which continuous with mesoderm covering the amnion?

somatic or parietal mesoderm layer

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