Reproductive tissue and embryology MCQS

1

Which of the following characteristics are specific for the neuroglial cells

1

Which of the following elements are visible in the neurons by light microscope by light microscopic observation

1

The nonmyelinated nerve fibers consist of

1

The myelinated nerve fibers consist of

1

parts of the neuron are

1

depending on shape of their bodies (perikaryons), the neurons are

1

Depending on the number of their branches the neurons are

1

depending on their functions, the neurons are

1

the central type of neuroglial cells are

1

By light microscope, observation of spinal cord on transverse sections stained with toluidinblue, multipolar neurons with cytoplasm filled with blue granules in the anterior horns are observed. What is the name of these structures, and appearance of which organelle are they

1

Under electron microscope, a transverse section of cylindrical in shape structure with dark and light lines arranged in concentric manner is observed. Peripherally, a part of cytoplasm with mitochondria and nucleus is visible. what is the name of the described structure?

1

under light microscope, on sections from cerebrum stained with AuCl2 star-shaped neurons with numerous long non-branching processes localised in the white matter are observed. some of the processes attach to the blood vessel walls. what is the name of these cells?

1

under light microscope, on sections stained with OsO4 bundles of black coloured fiber-like structures appear. there are gaps in their outer sheath and it is seen to be an incomplete or interrupted cylinder. radial clefts or fissures, extending through the thickness of the sheath are also visible. what is the name of the described structures?

1

By the oogenesis, 4 mature oocytes occur from 1 oogonium

1

oogenesis is fully completed after the fertilisation of the secondary oocyte

1

by spermatogenesis, 1 mature spermatozoon occurs from one spermatogonia

1

the axis (axonema) of the spermatozoon flagellum is built of microtubules following the 9x3+10 formula

1

the human spermatozoon head looks like 'flame of candle' in shape

1

the mitochondria are arranged in spiral fashion around the middle piece of the spermatozoon flagellum

1

the spermatogenesis starts during the

1

the spermatozoon acrosome represents

1

oogenesis starts during the

1

the marker enzyme of the human spermatozoon acrosome is

1

which of the following organelles are not present in the ovum (mature oocyte)

1

body of balbani is present in the

1

human spermatogenetic cycle occupies about

1

diameter of human ovum is

1

spermatozoon length is

1

oogenesis is completed

1

which of the following are specific to acrosomes

1

which of the following are specific to spermatogenesis

1

which are specific to secondary spermatocytes

1

spermatozoon head contains

1

consecutive stages of spermatogenesis

1

ovum is surrounded by

1

main parts of spermatozoon are

1

consecutive stages of oogenesis

1

zona pellucida

1

type of male germ cells are

1

under electron microscope, a round cell with spherical, pale nucleus and prominent nucleolus is observed. in the cell cytoplasm mitochondria, elements of golgi complex and vesicles are arranged in a group and form a common structure localised near the nucleus

1

by electronic microscopic observation of transverse section of spermatozoon flagellum, centrally placed microtubules surrounded by filamentous sheath and in spiral fashion arranged mitochondria appear.

1

by light microscopic observation of stained with hematoxylin-eosin section of ovary, a round, big in size cell within a spherical structure appears. the cell is with a pale nucleus ad prominent nucleolus. around the cell a homogenous, deeply stained membrane is visible. outside of it radially arranged cuboidal to cylindrical in shape cells form a layer.

1

Link the parts of the spermatozoon and the corresponding structures.

1

Fertilisation ability of the spermatozoon is preserved for 24-30 hours

1

Two veins and one artery are present in the umbilical cord on the newborn baby

1

the yolk sack takes part in the formation of the embryo discus

1

amnion is not involved in the formation of the embryo discus

1

the cells obtained as a result of segmentation are called blastomers

1

the trophoblast related structures are associated with the implantation and nutrition of the embryo

1

the smooth chorion takes part in the formation of the fetal sack

1

the embryoblast cells situated on the floor of the amnion differentiate into the ectoderma

1

the chorion frondosum participates in the formation of the placenta

1

linea primitiva is a temporary structure related to the organisation of the mesoderma

1

sperm volume normally is

1

II type of oocyte has a fertlisation ability during

1

the spermatozoa number in 1cm^3 sperm is

1

minimum part of mobile spermatazoa in the sperm necessary for fertilisation is above

1

process of transformation of spermatids into spermatazoa is called

1

the trophoblast is part of

1

the somites derive from

1

The dermatomes form

1

The implantation starts

1

The fertilisation is completed in

1

what type of function is the oocyte cortical reaction

1

umbilical cord of the newborn baby consists of

1

The somites form

1

from the mesenchyme derivates

1

from the ectoblasts derivates

1

the fetal sack wall consists of

1

the placental barrier after the third month of embryogenesis consists

1

the maternal part of the placenta consists of

1

the fetal part of the placenta consists of

1

which of the following are specific for the cortical reaction is

1

parts of mesoblast

1

Structures that derive from the somites of the mesoblast

1

specific for the segmentation by the human embryo is

1

chorion types are

1

Trophoblast types are

1

The process of the transformation of the nervous system passes through the following stages:

1

Under the light microscope, HE staining part of extraembryonal organ that is covered by amnion and contains three blood vessel and mucoid tissue between them appears. what is this organ

Quiz am Reproductive tissue and embryology MCQS, erstellt von Roshan Sivakumaran am 07/05/2019.

Reproductive tissue and embryology MCQS

Which of the following characteristics are specific for the neuroglial cells

Which of the following elements are visible in the neurons by light microscope by light microscopic observation

The nonmyelinated nerve fibers consist of

The myelinated nerve fibers consist of

parts of the neuron are

depending on shape of their bodies (perikaryons), the neurons are

Depending on the number of their branches the neurons are

depending on their functions, the neurons are

the central type of neuroglial cells are

By light microscope, observation of spinal cord on transverse sections stained with toluidinblue, multipolar neurons with cytoplasm filled with blue granules in the anterior horns are observed. What is the name of these structures, and appearance of which organelle are they

Under electron microscope, a transverse section of cylindrical in shape structure with dark and light lines arranged in concentric manner is observed. Peripherally, a part of cytoplasm with mitochondria and nucleus is visible. what is the name of the described structure?

under light microscope, on sections from cerebrum stained with AuCl2 star-shaped neurons with numerous long non-branching processes localised in the white matter are observed. some of the processes attach to the blood vessel walls. what is the name of these cells?

By the oogenesis, 4 mature oocytes occur from 1 oogonium

oogenesis is fully completed after the fertilisation of the secondary oocyte

by spermatogenesis, 1 mature spermatozoon occurs from one spermatogonia

the axis (axonema) of the spermatozoon flagellum is built of microtubules following the 9x3+10 formula

the human spermatozoon head looks like 'flame of candle' in shape

the mitochondria are arranged in spiral fashion around the middle piece of the spermatozoon flagellum

the spermatogenesis starts during the