Roshan Sivakumaran
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Quiz on Reproductive tissue and embryology MCQS, created by Roshan Sivakumaran on 07/05/2019.

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Roshan Sivakumaran
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Reproductive tissue and embryology MCQS

Question 1 of 80

1

Which of the following characteristics are specific for the neuroglial cells

Select one or more of the following:

  • regeneration ability

  • supporting and protective functions

  • collect stimuli and transforms them into nervous impulse

Explanation

Question 2 of 80

1

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

Select one or more of the following:

  • big in size, pale stained nucleus

  • nissl substance

  • tonofibrils

  • neurofibrils

Explanation

Question 3 of 80

1

The nonmyelinated nerve fibers consist of

Select one or more of the following:

  • axon

  • mylein sheath

  • schwann sheath

  • endoneurium

Explanation

Question 4 of 80

1

The myelinated nerve fibers consist of

Select one or more of the following:

  • axon

  • myelin sheath

  • microglia

  • endoneurium

  • schwann sheath

Explanation

Question 5 of 80

1

parts of the neuron are

Select one or more of the following:

  • axon

  • dendrites

  • perikaryon

Explanation

Question 6 of 80

1

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

Select one or more of the following:

  • star shaped

  • pyramidal

  • pear shaped

  • spherical/ spindle shaped

Explanation

Question 7 of 80

1

Depending on the number of their branches the neurons are

Select one or more of the following:

  • unipolar

  • pseudounipolar

  • bipolar

  • multipolar

Explanation

Question 8 of 80

1

depending on their functions, the neurons are

Select one or more of the following:

  • motor

  • sensory

  • associative

  • neuroendocrine

Explanation

Question 9 of 80

1

the central type of neuroglial cells are

Select one or more of the following:

  • astrocytes

  • oligodendrocytes

  • ependyma

  • microglia

Explanation

Question 10 of 80

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

Select one or more of the following:

  • nissle substance ( RER)

  • glial cells

Explanation

Question 11 of 80

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?

Select one or more of the following:

  • myelinated nerve fiber

  • nonmyelinated nerve fiber

Explanation

Question 12 of 80

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?

Select one or more of the following:

  • fibrous astrocyte

  • glial cells

Explanation

Question 13 of 80

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?

Select one or more of the following:

  • myelinated nerve fibers

  • non myelinated nerve fibers

Explanation

Question 14 of 80

1

By the oogenesis, 4 mature oocytes occur from 1 oogonium

Select one of the following:

  • yes

  • no

Explanation

Question 15 of 80

1

oogenesis is fully completed after the fertilisation of the secondary oocyte

Select one of the following:

  • yes

  • no

Explanation

Question 16 of 80

1

by spermatogenesis, 1 mature spermatozoon occurs from one spermatogonia

Select one of the following:

  • yes

  • no

Explanation

Question 17 of 80

1

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

Select one of the following:

  • yes

  • no

Explanation

Question 18 of 80

1

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

Select one of the following:

  • yes

  • no

Explanation

Question 19 of 80

1

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

Select one of the following:

  • yes

  • no

Explanation

Question 20 of 80

1

the spermatogenesis starts during the

Select one of the following:

  • fetal period

  • puberty

  • embryonic period

  • right after birth

Explanation

Question 21 of 80

1

the spermatozoon acrosome represents

Select one of the following:

  • secretory granule

  • lysosome

  • cistern of smooth-surfaced endoplasmic reticulum

  • cistern of golgi

Explanation

Question 22 of 80

1

oogenesis starts during the

Select one of the following:

  • embryonic period

  • fetal period

  • right after birth

  • puberty

Explanation

Question 23 of 80

1

the marker enzyme of the human spermatozoon acrosome is

Select one of the following:

  • hyaluronidase

  • acid phosphatase

  • alkaline phosphatase

  • lipase

Explanation

Question 24 of 80

1

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

Select one of the following:

  • golgi apparatus

  • mitochondria

  • lysosomes

  • centrioles

Explanation

Question 25 of 80

1

body of balbani is present in the

Select one of the following:

  • oogenium

  • primary oocyte

  • primary spermatocyte

  • spermatogonium

Explanation

Question 26 of 80

1

human spermatogenetic cycle occupies about

Select one of the following:

  • 22 days

  • 72 days

  • 52 days

Explanation

Question 27 of 80

1

diameter of human ovum is

Select one of the following:

  • 5 um

  • 120 um

  • 220 um

Explanation

Question 28 of 80

1

spermatozoon length is

Select one of the following:

  • 60 um

  • 30 um

Explanation

Question 29 of 80

1

oogenesis is completed

Select one of the following:

  • before ovulation

  • after fertilisation

  • after puberty

  • before fertilisation

Explanation

Question 30 of 80

1

which of the following are specific to acrosomes

Select one or more of the following:

  • membrane organelle

  • derived from golgi complex

  • contains glycogen

  • built of primary oocyte

  • biochemical analogous to the lysosomes

Explanation

Question 31 of 80

1

which of the following are specific to spermatogenesis

Select one or more of the following:

  • starts during the embryonic period

  • starts with onset of puberty

  • passes through four phases

  • passes through three phases

Explanation

Question 32 of 80

1

which are specific to secondary spermatocytes

Select one or more of the following:

  • haploid number of chromosomes

  • formed during the second phase of spermatogenesis

  • biggest in size male germ cells

Explanation

Question 33 of 80

1

spermatozoon head contains

Select one or more of the following:

  • nucleus

  • mitochondria

  • centrioles

  • acrosome

Explanation

Question 34 of 80

1

consecutive stages of spermatogenesis

Select one or more of the following:

  • cell multiplication

  • cell growth

  • cell differentiation

  • cell maturation

Explanation

Question 35 of 80

1

ovum is surrounded by

Select one or more of the following:

  • zona pellucida

  • corona radiata

Explanation

Question 36 of 80

1

main parts of spermatozoon are

Select one or more of the following:

  • head

  • middle piece

  • neck

  • tail

Explanation

Question 37 of 80

1

consecutive stages of oogenesis

Select one or more of the following:

  • cell multiplication

  • cell growth

  • cell differentiation

Explanation

Question 38 of 80

1

zona pellucida

Select one or more of the following:

  • mucoprotein substance

  • microvilli of oocyte and the processes of the follicular cells

  • contacts between the oocyte and the follicular cells

Explanation

Question 39 of 80

1

type of male germ cells are

Select one or more of the following:

  • spermatogonia

  • primary spermatocytes

  • secondary spermatocytes

  • spermatids

  • spermatoza

Explanation

Question 40 of 80

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

Select one or more of the following:

  • primary oocyte

  • secondary oocyte

Explanation

Question 41 of 80

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.

Select one of the following:

  • middle piece

  • central piece

Explanation

Question 42 of 80

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.

Select one of the following:

  • oocyte

  • somatic cell

Explanation

Question 43 of 80

1

Link the parts of the spermatozoon and the corresponding structures.

Select one or more of the following:

  • head

  • neck (cervix)

  • middle piece (pars intermedia)

  • tail (flagellum)

  • acrosome

  • mitochondria

  • centriole

Explanation

Question 44 of 80

1

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

Select one of the following:

  • True
  • False

Explanation

Question 45 of 80

1

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

Select one of the following:

  • True
  • False

Explanation

Question 46 of 80

1

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

Select one of the following:

  • True
  • False

Explanation

Question 47 of 80

1

amnion is not involved in the formation of the embryo discus

Select one of the following:

  • True
  • False

Explanation

Question 48 of 80

1

the cells obtained as a result of segmentation are called blastomers

Select one of the following:

  • True
  • False

Explanation

Question 49 of 80

1

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

Select one of the following:

  • True
  • False

Explanation

Question 50 of 80

1

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

Select one of the following:

  • True
  • False

Explanation

Question 51 of 80

1

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

Select one of the following:

  • True
  • False

Explanation

Question 52 of 80

1

the chorion frondosum participates in the formation of the placenta

Select one of the following:

  • True
  • False

Explanation

Question 53 of 80

1

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

Select one of the following:

  • True
  • False

Explanation

Question 54 of 80

1

sperm volume normally is

Select one of the following:

  • 2-6

  • 8-10

  • 10-12

Explanation

Question 55 of 80

1

II type of oocyte has a fertlisation ability during

Select one of the following:

  • 6-12 hours

  • 12-24 hours

  • 24-36 hours

  • 36-72 hours

Explanation

Question 56 of 80

1

the spermatozoa number in 1cm^3 sperm is

Select one of the following:

  • 10-30 x 10^6 /cm^3

  • 400-500 x 10^2 /cm^3

  • 130-160 x 10^6 / cm^3

  • 40-120 x 10^6 / cm^3

Explanation

Question 57 of 80

1

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

Select one of the following:

  • 10%

  • 20%

  • 30%

  • 50%

Explanation

Question 58 of 80

1

process of transformation of spermatids into spermatazoa is called

Select one of the following:

  • spermiogenesis

  • spermation

  • capacitation

  • acrosomal reaction

Explanation

Question 59 of 80

1

the trophoblast is part of

Select one of the following:

  • embryoblast

  • blastocysta

  • magma reticularis

Explanation

Question 60 of 80

1

the somites derive from

Select one of the following:

  • mesoblast

  • endoblast

  • ectoblast

  • mesenchyme

Explanation

Question 61 of 80

1

The dermatomes form

Select one of the following:

  • skin epithelium

  • skin connective tissue

  • skeletal muscles

Explanation

Question 62 of 80

1

The implantation starts

Select one of the following:

  • on first day after fertilisation

  • 6-7 days after fertilisation

  • 10 days after fertilisation

  • 15 days after fertilisation

Explanation

Question 63 of 80

1

The fertilisation is completed in

Select one of the following:

  • uterus cavity

  • oviduct cavity

  • abdomen

  • ovary

Explanation

Question 64 of 80

1

what type of function is the oocyte cortical reaction

Select one of the following:

  • trophic

  • receptor

  • barrier

  • phagocytic

Explanation

Question 65 of 80

1

umbilical cord of the newborn baby consists of

Select one of the following:

  • two arteries and 1 vein

  • two arteries and two veins

  • two veins and one artery

  • one artery and one vein

Explanation

Question 66 of 80

1

The somites form

Select one or more of the following:

  • dermatomes

  • sklerotomes

  • myotomes

  • nephrotomes

Explanation

Question 67 of 80

1

from the mesenchyme derivates

Select one or more of the following:

  • cardiac muscle tissue

  • smooth muscle tissue

  • skeletal muscle tissue

  • blood tissue

  • microglia

Explanation

Question 68 of 80

1

from the ectoblasts derivates

Select one or more of the following:

  • nervous tissue

  • blood tissue

  • skin epithelium

  • epithelium of oral cavity

  • smooth muscle tissue

Explanation

Question 69 of 80

1

the fetal sack wall consists of

Select one or more of the following:

  • amnion

  • smooth chorion

  • placental villae

  • covering decidua

  • basal decidua

Explanation

Question 70 of 80

1

the placental barrier after the third month of embryogenesis consists

Select one or more of the following:

  • synctical trophoblast

  • cytotrophoblast

  • epithelium of the placental capillaries

  • mesenchyme of the placental villa

  • epithelium of the uterus capillaries

Explanation

Question 71 of 80

1

the maternal part of the placenta consists of

Select one or more of the following:

  • cotyledones

  • loose connective tissue slips (septae)

  • blood lacunae

  • chorionic plate

Explanation

Question 72 of 80

1

the fetal part of the placenta consists of

Select one or more of the following:

  • loose connective tissue (septae)

  • blood lacunae

  • amnion

  • chorion frondosum

  • cotyledones

Explanation

Question 73 of 80

1

which of the following are specific for the cortical reaction is

Select one or more of the following:

  • completed in corona radiata

  • associated with releasing of the acrosomal enzymes

  • associated with releasing the proteolytic enzymes under the oocyte plasmalemma

  • blocks the passing of more than one spermatozoon into the oocyte

  • associated with destroying of the spermatozoon receptors in zona pellucida

Explanation

Question 74 of 80

1

parts of mesoblast

Select one or more of the following:

  • epimer

  • mesomer

  • hypomer

Explanation

Question 75 of 80

1

Structures that derive from the somites of the mesoblast

Select one or more of the following:

  • dermatomes

  • sclerotomes

  • myotomes

Explanation

Question 76 of 80

1

specific for the segmentation by the human embryo is

Select one or more of the following:

  • asynchronous

  • unequal

Explanation

Question 77 of 80

1

chorion types are

Select one or more of the following:

  • chorion laeve

  • chorion frondosum

Explanation

Question 78 of 80

1

Trophoblast types are

Select one or more of the following:

  • cytotrophoblasts

  • syncytial trophoblasts

Explanation

Question 79 of 80

1

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

Select one or more of the following:

  • neural plate

  • neural groove

  • neural tube

Explanation

Question 80 of 80

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

Select one or more of the following:

  • umbilical cord (after 3rd month)

  • placental villi

Explanation

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