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Reproductive tissue and embryology MCQS

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Quiz on Reproductive tissue and embryology MCQS, created by Roshan Sivakumaran on 07/05/2019.
Roshan Sivakumaran
Quiz by Roshan Sivakumaran, updated more than 1 year ago
Roshan Sivakumaran
Created by Roshan Sivakumaran over 5 years ago
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Resource summary

Question 1

Question
Which of the following characteristics are specific for the neuroglial cells
Answer
  • regeneration ability
  • supporting and protective functions
  • collect stimuli and transforms them into nervous impulse

Question 2

Question
Which of the following elements are visible in the neurons by light microscope by light microscopic observation
Answer
  • big in size, pale stained nucleus
  • nissl substance
  • tonofibrils
  • neurofibrils

Question 3

Question
The nonmyelinated nerve fibers consist of
Answer
  • axon
  • mylein sheath
  • schwann sheath
  • endoneurium

Question 4

Question
The myelinated nerve fibers consist of
Answer
  • axon
  • myelin sheath
  • microglia
  • endoneurium
  • schwann sheath

Question 5

Question
parts of the neuron are
Answer
  • axon
  • dendrites
  • perikaryon

Question 6

Question
depending on shape of their bodies (perikaryons), the neurons are
Answer
  • star shaped
  • pyramidal
  • pear shaped
  • spherical/ spindle shaped

Question 7

Question
Depending on the number of their branches the neurons are
Answer
  • unipolar
  • pseudounipolar
  • bipolar
  • multipolar

Question 8

Question
depending on their functions, the neurons are
Answer
  • motor
  • sensory
  • associative
  • neuroendocrine

Question 9

Question
the central type of neuroglial cells are
Answer
  • astrocytes
  • oligodendrocytes
  • ependyma
  • microglia

Question 10

Question
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
Answer
  • nissle substance ( RER)
  • glial cells

Question 11

Question
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?
Answer
  • myelinated nerve fiber
  • nonmyelinated nerve fiber

Question 12

Question
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?
Answer
  • fibrous astrocyte
  • glial cells

Question 13

Question
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?
Answer
  • myelinated nerve fibers
  • non myelinated nerve fibers

Question 14

Question
By the oogenesis, 4 mature oocytes occur from 1 oogonium
Answer
  • yes
  • no

Question 15

Question
oogenesis is fully completed after the fertilisation of the secondary oocyte
Answer
  • yes
  • no

Question 16

Question
by spermatogenesis, 1 mature spermatozoon occurs from one spermatogonia
Answer
  • yes
  • no

Question 17

Question
the axis (axonema) of the spermatozoon flagellum is built of microtubules following the 9x3+10 formula
Answer
  • yes
  • no

Question 18

Question
the human spermatozoon head looks like 'flame of candle' in shape
Answer
  • yes
  • no

Question 19

Question
the mitochondria are arranged in spiral fashion around the middle piece of the spermatozoon flagellum
Answer
  • yes
  • no

Question 20

Question
the spermatogenesis starts during the
Answer
  • fetal period
  • puberty
  • embryonic period
  • right after birth

Question 21

Question
the spermatozoon acrosome represents
Answer
  • secretory granule
  • lysosome
  • cistern of smooth-surfaced endoplasmic reticulum
  • cistern of golgi

Question 22

Question
oogenesis starts during the
Answer
  • embryonic period
  • fetal period
  • right after birth
  • puberty

Question 23

Question
the marker enzyme of the human spermatozoon acrosome is
Answer
  • hyaluronidase
  • acid phosphatase
  • alkaline phosphatase
  • lipase

Question 24

Question
which of the following organelles are not present in the ovum (mature oocyte)
Answer
  • golgi apparatus
  • mitochondria
  • lysosomes
  • centrioles

Question 25

Question
body of balbani is present in the
Answer
  • oogenium
  • primary oocyte
  • primary spermatocyte
  • spermatogonium

Question 26

Question
human spermatogenetic cycle occupies about
Answer
  • 22 days
  • 72 days
  • 52 days

Question 27

Question
diameter of human ovum is
Answer
  • 5 um
  • 120 um
  • 220 um

Question 28

Question
spermatozoon length is
Answer
  • 60 um
  • 30 um

Question 29

Question
oogenesis is completed
Answer
  • before ovulation
  • after fertilisation
  • after puberty
  • before fertilisation

Question 30

Question
which of the following are specific to acrosomes
Answer
  • membrane organelle
  • derived from golgi complex
  • contains glycogen
  • built of primary oocyte
  • biochemical analogous to the lysosomes

Question 31

Question
which of the following are specific to spermatogenesis
Answer
  • starts during the embryonic period
  • starts with onset of puberty
  • passes through four phases
  • passes through three phases

Question 32

Question
which are specific to secondary spermatocytes
Answer
  • haploid number of chromosomes
  • formed during the second phase of spermatogenesis
  • biggest in size male germ cells

Question 33

Question
spermatozoon head contains
Answer
  • nucleus
  • mitochondria
  • centrioles
  • acrosome

Question 34

Question
consecutive stages of spermatogenesis
Answer
  • cell multiplication
  • cell growth
  • cell differentiation
  • cell maturation

Question 35

Question
ovum is surrounded by
Answer
  • zona pellucida
  • corona radiata

Question 36

Question
main parts of spermatozoon are
Answer
  • head
  • middle piece
  • neck
  • tail

Question 37

Question
consecutive stages of oogenesis
Answer
  • cell multiplication
  • cell growth
  • cell differentiation

Question 38

Question
zona pellucida
Answer
  • mucoprotein substance
  • microvilli of oocyte and the processes of the follicular cells
  • contacts between the oocyte and the follicular cells

Question 39

Question
type of male germ cells are
Answer
  • spermatogonia
  • primary spermatocytes
  • secondary spermatocytes
  • spermatids
  • spermatoza

Question 40

Question
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
Answer
  • primary oocyte
  • secondary oocyte

Question 41

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

Question 42

Question
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.
Answer
  • oocyte
  • somatic cell

Question 43

Question
Link the parts of the spermatozoon and the corresponding structures.
Answer
  • head
  • neck (cervix)
  • middle piece (pars intermedia)
  • tail (flagellum)
  • acrosome
  • mitochondria
  • centriole

Question 44

Question
Fertilisation ability of the spermatozoon is preserved for 24-30 hours
Answer
  • True
  • False

Question 45

Question
Two veins and one artery are present in the umbilical cord on the newborn baby
Answer
  • True
  • False

Question 46

Question
the yolk sack takes part in the formation of the embryo discus
Answer
  • True
  • False

Question 47

Question
amnion is not involved in the formation of the embryo discus
Answer
  • True
  • False

Question 48

Question
the cells obtained as a result of segmentation are called blastomers
Answer
  • True
  • False

Question 49

Question
the trophoblast related structures are associated with the implantation and nutrition of the embryo
Answer
  • True
  • False

Question 50

Question
the smooth chorion takes part in the formation of the fetal sack
Answer
  • True
  • False

Question 51

Question
the embryoblast cells situated on the floor of the amnion differentiate into the ectoderma
Answer
  • True
  • False

Question 52

Question
the chorion frondosum participates in the formation of the placenta
Answer
  • True
  • False

Question 53

Question
linea primitiva is a temporary structure related to the organisation of the mesoderma
Answer
  • True
  • False

Question 54

Question
sperm volume normally is
Answer
  • 2-6
  • 8-10
  • 10-12

Question 55

Question
II type of oocyte has a fertlisation ability during
Answer
  • 6-12 hours
  • 12-24 hours
  • 24-36 hours
  • 36-72 hours

Question 56

Question
the spermatozoa number in 1cm^3 sperm is
Answer
  • 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

Question 57

Question
minimum part of mobile spermatazoa in the sperm necessary for fertilisation is above
Answer
  • 10%
  • 20%
  • 30%
  • 50%

Question 58

Question
process of transformation of spermatids into spermatazoa is called
Answer
  • spermiogenesis
  • spermation
  • capacitation
  • acrosomal reaction

Question 59

Question
the trophoblast is part of
Answer
  • embryoblast
  • blastocysta
  • magma reticularis

Question 60

Question
the somites derive from
Answer
  • mesoblast
  • endoblast
  • ectoblast
  • mesenchyme

Question 61

Question
The dermatomes form
Answer
  • skin epithelium
  • skin connective tissue
  • skeletal muscles

Question 62

Question
The implantation starts
Answer
  • on first day after fertilisation
  • 6-7 days after fertilisation
  • 10 days after fertilisation
  • 15 days after fertilisation

Question 63

Question
The fertilisation is completed in
Answer
  • uterus cavity
  • oviduct cavity
  • abdomen
  • ovary

Question 64

Question
what type of function is the oocyte cortical reaction
Answer
  • trophic
  • receptor
  • barrier
  • phagocytic

Question 65

Question
umbilical cord of the newborn baby consists of
Answer
  • two arteries and 1 vein
  • two arteries and two veins
  • two veins and one artery
  • one artery and one vein

Question 66

Question
The somites form
Answer
  • dermatomes
  • sklerotomes
  • myotomes
  • nephrotomes

Question 67

Question
from the mesenchyme derivates
Answer
  • cardiac muscle tissue
  • smooth muscle tissue
  • skeletal muscle tissue
  • blood tissue
  • microglia

Question 68

Question
from the ectoblasts derivates
Answer
  • nervous tissue
  • blood tissue
  • skin epithelium
  • epithelium of oral cavity
  • smooth muscle tissue

Question 69

Question
the fetal sack wall consists of
Answer
  • amnion
  • smooth chorion
  • placental villae
  • covering decidua
  • basal decidua

Question 70

Question
the placental barrier after the third month of embryogenesis consists
Answer
  • synctical trophoblast
  • cytotrophoblast
  • epithelium of the placental capillaries
  • mesenchyme of the placental villa
  • epithelium of the uterus capillaries

Question 71

Question
the maternal part of the placenta consists of
Answer
  • cotyledones
  • loose connective tissue slips (septae)
  • blood lacunae
  • chorionic plate

Question 72

Question
the fetal part of the placenta consists of
Answer
  • loose connective tissue (septae)
  • blood lacunae
  • amnion
  • chorion frondosum
  • cotyledones

Question 73

Question
which of the following are specific for the cortical reaction is
Answer
  • 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

Question 74

Question
parts of mesoblast
Answer
  • epimer
  • mesomer
  • hypomer

Question 75

Question
Structures that derive from the somites of the mesoblast
Answer
  • dermatomes
  • sclerotomes
  • myotomes

Question 76

Question
specific for the segmentation by the human embryo is
Answer
  • asynchronous
  • unequal

Question 77

Question
chorion types are
Answer
  • chorion laeve
  • chorion frondosum

Question 78

Question
Trophoblast types are
Answer
  • cytotrophoblasts
  • syncytial trophoblasts

Question 79

Question
The process of the transformation of the nervous system passes through the following stages:
Answer
  • neural plate
  • neural groove
  • neural tube

Question 80

Question
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
Answer
  • umbilical cord (after 3rd month)
  • placental villi
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