17991412
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Quiz von Roshan Sivakumaran, aktualisiert more than 1 year ago
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Erstellt von Roshan Sivakumaran
vor etwa 5 Jahre
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Frage 1
Frage
Which of the following characteristics are specific for the neuroglial cells
Antworten
-
regeneration ability
-
supporting and protective functions
-
collect stimuli and transforms them into nervous impulse
Frage 2
Frage
Which of the following elements are visible in the neurons by light microscope by light microscopic observation
Antworten
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big in size, pale stained nucleus
-
nissl substance
-
tonofibrils
-
neurofibrils
Frage 3
Frage
The nonmyelinated nerve fibers consist of
Antworten
-
axon
-
mylein sheath
-
schwann sheath
-
endoneurium
Frage 4
Frage
The myelinated nerve fibers consist of
Antworten
-
axon
-
myelin sheath
-
microglia
-
endoneurium
-
schwann sheath
Frage 5
Frage
parts of the neuron are
Antworten
-
axon
-
dendrites
-
perikaryon
Frage 6
Frage
depending on shape of their bodies (perikaryons), the neurons are
Antworten
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star shaped
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pyramidal
-
pear shaped
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spherical/ spindle shaped
Frage 7
Frage
Depending on the number of their branches the neurons are
Antworten
-
unipolar
-
pseudounipolar
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bipolar
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multipolar
Frage 8
Frage
depending on their functions, the neurons are
Antworten
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motor
-
sensory
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associative
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neuroendocrine
Frage 9
Frage
the central type of neuroglial cells are
Antworten
-
astrocytes
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oligodendrocytes
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ependyma
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microglia
Frage 10
Frage
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
Antworten
-
nissle substance ( RER)
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glial cells
Frage 11
Frage
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?
Antworten
-
myelinated nerve fiber
-
nonmyelinated nerve fiber
Frage 12
Frage
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?
Antworten
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fibrous astrocyte
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glial cells
Frage 13
Frage
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?
Antworten
-
myelinated nerve fibers
-
non myelinated nerve fibers
Frage 14
Frage
By the oogenesis, 4 mature oocytes occur from 1 oogonium
Antworten
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yes
-
no
Frage 15
Frage
oogenesis is fully completed after the fertilisation of the secondary oocyte
Antworten
-
yes
-
no
Frage 16
Frage
by spermatogenesis, 1 mature spermatozoon occurs from one spermatogonia
Antworten
-
yes
-
no
Frage 17
Frage
the axis (axonema) of the spermatozoon flagellum is built of microtubules following the 9x3+10 formula
Antworten
-
yes
-
no
Frage 18
Frage
the human spermatozoon head looks like 'flame of candle' in shape
Antworten
-
yes
-
no
Frage 19
Frage
the mitochondria are arranged in spiral fashion around the middle piece of the spermatozoon flagellum
Antworten
-
yes
-
no
Frage 20
Frage
the spermatogenesis starts during the
Antworten
-
fetal period
-
puberty
-
embryonic period
-
right after birth
Frage 21
Frage
the spermatozoon acrosome represents
Antworten
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secretory granule
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lysosome
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cistern of smooth-surfaced endoplasmic reticulum
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cistern of golgi
Frage 22
Frage
oogenesis starts during the
Antworten
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embryonic period
-
fetal period
-
right after birth
-
puberty
Frage 23
Frage
the marker enzyme of the human spermatozoon acrosome is
Antworten
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hyaluronidase
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acid phosphatase
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alkaline phosphatase
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lipase
Frage 24
Frage
which of the following organelles are not present in the ovum (mature oocyte)
Antworten
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golgi apparatus
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mitochondria
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lysosomes
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centrioles
Frage 25
Frage
body of balbani is present in the
Antworten
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oogenium
-
primary oocyte
-
primary spermatocyte
-
spermatogonium
Frage 26
Frage
human spermatogenetic cycle occupies about
Antworten
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22 days
-
72 days
-
52 days
Frage 27
Frage
diameter of human ovum is
Antworten
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5 um
-
120 um
-
220 um
Frage 28
Frage
spermatozoon length is
Antworten
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60 um
-
30 um
Frage 29
Frage
oogenesis is completed
Antworten
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before ovulation
-
after fertilisation
-
after puberty
-
before fertilisation
Frage 30
Frage
which of the following are specific to acrosomes
Antworten
-
membrane organelle
-
derived from golgi complex
-
contains glycogen
-
built of primary oocyte
-
biochemical analogous to the lysosomes
Frage 31
Frage
which of the following are specific to spermatogenesis
Antworten
-
starts during the embryonic period
-
starts with onset of puberty
-
passes through four phases
-
passes through three phases
Frage 32
Frage
which are specific to secondary spermatocytes
Antworten
-
haploid number of chromosomes
-
formed during the second phase of spermatogenesis
-
biggest in size male germ cells
Frage 33
Frage
spermatozoon head contains
Antworten
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nucleus
-
mitochondria
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centrioles
-
acrosome
Frage 34
Frage
consecutive stages of spermatogenesis
Antworten
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cell multiplication
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cell growth
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cell differentiation
-
cell maturation
Frage 35
Frage
ovum is surrounded by
Antworten
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zona pellucida
-
corona radiata
Frage 36
Frage
main parts of spermatozoon are
Antworten
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head
-
middle piece
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neck
-
tail
Frage 37
Frage
consecutive stages of oogenesis
Antworten
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cell multiplication
-
cell growth
-
cell differentiation
Frage 38
Frage
zona pellucida
Antworten
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mucoprotein substance
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microvilli of oocyte and the processes of the follicular cells
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contacts between the oocyte and the follicular cells
Frage 39
Frage
type of male germ cells are
Antworten
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spermatogonia
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primary spermatocytes
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secondary spermatocytes
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spermatids
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spermatoza
Frage 40
Frage
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
Antworten
-
primary oocyte
-
secondary oocyte
Frage 41
Frage
by electronic microscopic observation of transverse section of spermatozoon flagellum, centrally placed microtubules surrounded by filamentous sheath and in spiral fashion arranged mitochondria appear.
Antworten
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middle piece
-
central piece
Frage 42
Frage
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.
Antworten
-
oocyte
-
somatic cell
Frage 43
Frage
Link the parts of the spermatozoon and the corresponding structures.
Antworten
-
head
-
neck (cervix)
-
middle piece (pars intermedia)
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tail (flagellum)
-
acrosome
-
mitochondria
-
centriole
Frage 44
Frage
Fertilisation ability of the spermatozoon is preserved for 24-30 hours
Antworten
- True
- False
Frage 45
Frage
Two veins and one artery are present in the umbilical cord on the newborn baby
Antworten
- True
- False
Frage 46
Frage
the yolk sack takes part in the formation of the embryo discus
Antworten
- True
- False
Frage 47
Frage
amnion is not involved in the formation of the embryo discus
Antworten
- True
- False
Frage 48
Frage
the cells obtained as a result of segmentation are called blastomers
Antworten
- True
- False
Frage 49
Frage
the trophoblast related structures are associated with the implantation and nutrition of the embryo
Antworten
- True
- False
Frage 50
Frage
the smooth chorion takes part in the formation of the fetal sack
Antworten
- True
- False
Frage 51
Frage
the embryoblast cells situated on the floor of the amnion differentiate into the ectoderma
Antworten
- True
- False
Frage 52
Frage
the chorion frondosum participates in the formation of the placenta
Antworten
- True
- False
Frage 53
Frage
linea primitiva is a temporary structure related to the organisation of the mesoderma
Antworten
- True
- False
Frage 54
Frage
sperm volume normally is
Antworten
-
2-6
-
8-10
-
10-12
Frage 55
Frage
II type of oocyte has a fertlisation ability during
Antworten
-
6-12 hours
-
12-24 hours
-
24-36 hours
-
36-72 hours
Frage 56
Frage
the spermatozoa number in 1cm^3 sperm is
Antworten
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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
Frage 57
Frage
minimum part of mobile spermatazoa in the sperm necessary for fertilisation is above
Antworten
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10%
-
20%
-
30%
-
50%
Frage 58
Frage
process of transformation of spermatids into spermatazoa is called
Antworten
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spermiogenesis
-
spermation
-
capacitation
-
acrosomal reaction
Frage 59
Frage
the trophoblast is part of
Antworten
-
embryoblast
-
blastocysta
-
magma reticularis
Frage 60
Frage
the somites derive from
Antworten
-
mesoblast
-
endoblast
-
ectoblast
-
mesenchyme
Frage 61
Frage
The dermatomes form
Antworten
-
skin epithelium
-
skin connective tissue
-
skeletal muscles
Frage 62
Frage
The implantation starts
Antworten
-
on first day after fertilisation
-
6-7 days after fertilisation
-
10 days after fertilisation
-
15 days after fertilisation
Frage 63
Frage
The fertilisation is completed in
Antworten
-
uterus cavity
-
oviduct cavity
-
abdomen
-
ovary
Frage 64
Frage
what type of function is the oocyte cortical reaction
Antworten
-
trophic
-
receptor
-
barrier
-
phagocytic
Frage 65
Frage
umbilical cord of the newborn baby consists of
Antworten
-
two arteries and 1 vein
-
two arteries and two veins
-
two veins and one artery
-
one artery and one vein
Frage 66
Frage
The somites form
Antworten
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dermatomes
-
sklerotomes
-
myotomes
-
nephrotomes
Frage 67
Frage
from the mesenchyme derivates
Antworten
-
cardiac muscle tissue
-
smooth muscle tissue
-
skeletal muscle tissue
-
blood tissue
-
microglia
Frage 68
Frage
from the ectoblasts derivates
Antworten
-
nervous tissue
-
blood tissue
-
skin epithelium
-
epithelium of oral cavity
-
smooth muscle tissue
Frage 69
Frage
the fetal sack wall consists of
Antworten
-
amnion
-
smooth chorion
-
placental villae
-
covering decidua
-
basal decidua
Frage 70
Frage
the placental barrier after the third month of embryogenesis consists
Antworten
-
synctical trophoblast
-
cytotrophoblast
-
epithelium of the placental capillaries
-
mesenchyme of the placental villa
-
epithelium of the uterus capillaries
Frage 71
Frage
the maternal part of the placenta consists of
Antworten
-
cotyledones
-
loose connective tissue slips (septae)
-
blood lacunae
-
chorionic plate
Frage 72
Frage
the fetal part of the placenta consists of
Antworten
-
loose connective tissue (septae)
-
blood lacunae
-
amnion
-
chorion frondosum
-
cotyledones
Frage 73
Frage
which of the following are specific for the cortical reaction is
Antworten
-
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
Frage 74
Frage
parts of mesoblast
Antworten
-
epimer
-
mesomer
-
hypomer
Frage 75
Frage
Structures that derive from the somites of the mesoblast
Antworten
-
dermatomes
-
sclerotomes
-
myotomes
Frage 76
Frage
specific for the segmentation by the human embryo is
Antworten
-
asynchronous
-
unequal
Frage 77
Frage
chorion types are
Antworten
-
chorion laeve
-
chorion frondosum
Frage 78
Frage
Trophoblast types are
Antworten
-
cytotrophoblasts
-
syncytial trophoblasts
Frage 79
Frage
The process of the transformation of the nervous system passes through the following stages:
Antworten
-
neural plate
-
neural groove
-
neural tube
Frage 80
Frage
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
Antworten
-
umbilical cord (after 3rd month)
-
placental villi
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