17991412
Descrição
Quiz por Roshan Sivakumaran, atualizado more than 1 year ago
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Criado por Roshan Sivakumaran
mais de 5 anos atrás
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Questão 1
Questão
Which of the following characteristics are specific for the neuroglial cells
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regeneration ability
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supporting and protective functions
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collect stimuli and transforms them into nervous impulse
Questão 2
Questão
Which of the following elements are visible in the neurons by light microscope by light microscopic observation
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big in size, pale stained nucleus
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nissl substance
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tonofibrils
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neurofibrils
Questão 3
Questão
The nonmyelinated nerve fibers consist of
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axon
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mylein sheath
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schwann sheath
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endoneurium
Questão 4
Questão
The myelinated nerve fibers consist of
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axon
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myelin sheath
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microglia
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endoneurium
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schwann sheath
Questão 5
Questão
parts of the neuron are
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axon
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dendrites
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perikaryon
Questão 6
Questão
depending on shape of their bodies (perikaryons), the neurons are
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star shaped
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pyramidal
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pear shaped
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spherical/ spindle shaped
Questão 7
Questão
Depending on the number of their branches the neurons are
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unipolar
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pseudounipolar
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bipolar
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multipolar
Questão 8
Questão
depending on their functions, the neurons are
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motor
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sensory
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associative
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neuroendocrine
Questão 9
Questão
the central type of neuroglial cells are
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astrocytes
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oligodendrocytes
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ependyma
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microglia
Questão 10
Questão
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
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nissle substance ( RER)
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glial cells
Questão 11
Questão
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?
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myelinated nerve fiber
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nonmyelinated nerve fiber
Questão 12
Questão
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?
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fibrous astrocyte
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glial cells
Questão 13
Questão
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?
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myelinated nerve fibers
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non myelinated nerve fibers
Questão 14
Questão
By the oogenesis, 4 mature oocytes occur from 1 oogonium
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yes
-
no
Questão 15
Questão
oogenesis is fully completed after the fertilisation of the secondary oocyte
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yes
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no
Questão 16
Questão
by spermatogenesis, 1 mature spermatozoon occurs from one spermatogonia
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yes
-
no
Questão 17
Questão
the axis (axonema) of the spermatozoon flagellum is built of microtubules following the 9x3+10 formula
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yes
-
no
Questão 18
Questão
the human spermatozoon head looks like 'flame of candle' in shape
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yes
-
no
Questão 19
Questão
the mitochondria are arranged in spiral fashion around the middle piece of the spermatozoon flagellum
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yes
-
no
Questão 20
Questão
the spermatogenesis starts during the
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fetal period
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puberty
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embryonic period
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right after birth
Questão 21
Questão
the spermatozoon acrosome represents
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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
Questão 22
Questão
oogenesis starts during the
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embryonic period
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fetal period
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right after birth
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puberty
Questão 23
Questão
the marker enzyme of the human spermatozoon acrosome is
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hyaluronidase
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acid phosphatase
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alkaline phosphatase
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lipase
Questão 24
Questão
which of the following organelles are not present in the ovum (mature oocyte)
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golgi apparatus
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mitochondria
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lysosomes
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centrioles
Questão 25
Questão
body of balbani is present in the
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oogenium
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primary oocyte
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primary spermatocyte
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spermatogonium
Questão 26
Questão
human spermatogenetic cycle occupies about
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22 days
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72 days
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52 days
Questão 27
Questão
diameter of human ovum is
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5 um
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120 um
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220 um
Questão 28
Questão
spermatozoon length is
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60 um
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30 um
Questão 29
Questão
oogenesis is completed
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before ovulation
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after fertilisation
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after puberty
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before fertilisation
Questão 30
Questão
which of the following are specific to acrosomes
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membrane organelle
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derived from golgi complex
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contains glycogen
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built of primary oocyte
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biochemical analogous to the lysosomes
Questão 31
Questão
which of the following are specific to spermatogenesis
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starts during the embryonic period
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starts with onset of puberty
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passes through four phases
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passes through three phases
Questão 32
Questão
which are specific to secondary spermatocytes
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haploid number of chromosomes
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formed during the second phase of spermatogenesis
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biggest in size male germ cells
Questão 33
Questão
spermatozoon head contains
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nucleus
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mitochondria
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centrioles
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acrosome
Questão 34
Questão
consecutive stages of spermatogenesis
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cell multiplication
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cell growth
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cell differentiation
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cell maturation
Questão 35
Questão
ovum is surrounded by
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zona pellucida
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corona radiata
Questão 36
Questão
main parts of spermatozoon are
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head
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middle piece
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neck
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tail
Questão 37
Questão
consecutive stages of oogenesis
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cell multiplication
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cell growth
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cell differentiation
Questão 38
Questão
zona pellucida
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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
Questão 39
Questão
type of male germ cells are
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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
Questão 40
Questão
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
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primary oocyte
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secondary oocyte
Questão 41
Questão
by electronic microscopic observation of transverse section of spermatozoon flagellum, centrally placed microtubules surrounded by filamentous sheath and in spiral fashion arranged mitochondria appear.
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middle piece
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central piece
Questão 42
Questão
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.
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oocyte
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somatic cell
Questão 43
Questão
Link the parts of the spermatozoon and the corresponding structures.
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head
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neck (cervix)
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middle piece (pars intermedia)
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tail (flagellum)
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acrosome
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mitochondria
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centriole
Questão 44
Questão
Fertilisation ability of the spermatozoon is preserved for 24-30 hours
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- True
- False
Questão 45
Questão
Two veins and one artery are present in the umbilical cord on the newborn baby
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- True
- False
Questão 46
Questão
the yolk sack takes part in the formation of the embryo discus
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- True
- False
Questão 47
Questão
amnion is not involved in the formation of the embryo discus
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- True
- False
Questão 48
Questão
the cells obtained as a result of segmentation are called blastomers
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- True
- False
Questão 49
Questão
the trophoblast related structures are associated with the implantation and nutrition of the embryo
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- True
- False
Questão 50
Questão
the smooth chorion takes part in the formation of the fetal sack
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- True
- False
Questão 51
Questão
the embryoblast cells situated on the floor of the amnion differentiate into the ectoderma
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- True
- False
Questão 52
Questão
the chorion frondosum participates in the formation of the placenta
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- True
- False
Questão 53
Questão
linea primitiva is a temporary structure related to the organisation of the mesoderma
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- True
- False
Questão 54
Questão
sperm volume normally is
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2-6
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8-10
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10-12
Questão 55
Questão
II type of oocyte has a fertlisation ability during
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6-12 hours
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12-24 hours
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24-36 hours
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36-72 hours
Questão 56
Questão
the spermatozoa number in 1cm^3 sperm is
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10-30 x 10^6 /cm^3
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400-500 x 10^2 /cm^3
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130-160 x 10^6 / cm^3
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40-120 x 10^6 / cm^3
Questão 57
Questão
minimum part of mobile spermatazoa in the sperm necessary for fertilisation is above
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10%
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20%
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30%
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50%
Questão 58
Questão
process of transformation of spermatids into spermatazoa is called
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spermiogenesis
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spermation
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capacitation
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acrosomal reaction
Questão 59
Questão
the trophoblast is part of
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embryoblast
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blastocysta
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magma reticularis
Questão 60
Questão
the somites derive from
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mesoblast
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endoblast
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ectoblast
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mesenchyme
Questão 61
Questão
The dermatomes form
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skin epithelium
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skin connective tissue
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skeletal muscles
Questão 62
Questão
The implantation starts
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on first day after fertilisation
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6-7 days after fertilisation
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10 days after fertilisation
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15 days after fertilisation
Questão 63
Questão
The fertilisation is completed in
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uterus cavity
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oviduct cavity
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abdomen
-
ovary
Questão 64
Questão
what type of function is the oocyte cortical reaction
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trophic
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receptor
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barrier
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phagocytic
Questão 65
Questão
umbilical cord of the newborn baby consists of
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two arteries and 1 vein
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two arteries and two veins
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two veins and one artery
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one artery and one vein
Questão 66
Questão
The somites form
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dermatomes
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sklerotomes
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myotomes
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nephrotomes
Questão 67
Questão
from the mesenchyme derivates
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cardiac muscle tissue
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smooth muscle tissue
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skeletal muscle tissue
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blood tissue
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microglia
Questão 68
Questão
from the ectoblasts derivates
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nervous tissue
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blood tissue
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skin epithelium
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epithelium of oral cavity
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smooth muscle tissue
Questão 69
Questão
the fetal sack wall consists of
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amnion
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smooth chorion
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placental villae
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covering decidua
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basal decidua
Questão 70
Questão
the placental barrier after the third month of embryogenesis consists
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synctical trophoblast
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cytotrophoblast
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epithelium of the placental capillaries
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mesenchyme of the placental villa
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epithelium of the uterus capillaries
Questão 71
Questão
the maternal part of the placenta consists of
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cotyledones
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loose connective tissue slips (septae)
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blood lacunae
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chorionic plate
Questão 72
Questão
the fetal part of the placenta consists of
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loose connective tissue (septae)
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blood lacunae
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amnion
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chorion frondosum
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cotyledones
Questão 73
Questão
which of the following are specific for the cortical reaction is
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completed in corona radiata
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associated with releasing of the acrosomal enzymes
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associated with releasing the proteolytic enzymes under the oocyte plasmalemma
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blocks the passing of more than one spermatozoon into the oocyte
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associated with destroying of the spermatozoon receptors in zona pellucida
Questão 74
Questão
parts of mesoblast
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epimer
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mesomer
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hypomer
Questão 75
Questão
Structures that derive from the somites of the mesoblast
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dermatomes
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sclerotomes
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myotomes
Questão 76
Questão
specific for the segmentation by the human embryo is
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asynchronous
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unequal
Questão 77
Questão
chorion types are
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chorion laeve
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chorion frondosum
Questão 78
Questão
Trophoblast types are
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cytotrophoblasts
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syncytial trophoblasts
Questão 79
Questão
The process of the transformation of the nervous system passes through the following stages:
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neural plate
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neural groove
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neural tube
Questão 80
Questão
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
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umbilical cord (after 3rd month)
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placental villi
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