16052358
Descripción
Test por youssef shoukry, actualizado hace más de 1 año
|
Creado por youssef shoukry
hace alrededor de 6 años
|
|
Pregunta 1
Pregunta
The primitive streak develops in which layer of embryonic disc?
Respuesta
-
a. Epiblast.
-
b. Hypoblast.
-
c. Mesoderm.
-
d. Endoderm.
-
e. Notochord.
Pregunta 2
Pregunta
. Which of the following is derived from somites:
Respuesta
-
a. Dermis.
-
b. Ganglia.
-
c. Pleura.
-
d. Lungs.
-
e. Kidneys.
Pregunta 3
Pregunta
An umbilical cord attached to the margin of placenta is called:
Respuesta
-
a. Velamentous insertion of cord.
-
b. Placenta accreta.
-
c. Battledore placenta.
-
d. Succenturiata placenta.
-
e. False cord knot.
Pregunta 4
Pregunta
The number of somlres during the 22nd day is:
Respuesta
-
a. Two.
-
b. Four.
-
c. Seven.
-
d. Ten.
-
e. Thirteen.
Pregunta 5
Pregunta
Nucleus pulposus of intervertebral disc develops from the:
Respuesta
-
a. Neural crest.
-
b. Notochord.
-
c. Sclerotome.
-
d. Somite.
-
e. Ectoderm.
Pregunta 6
Pregunta
The arteries. veins and lymphatic channels develop from:
Respuesta
-
b. Ectoderm.
-
c. Mesoderm.
-
d. Amnion.
-
e.Endoderm.
Pregunta 7
Pregunta
Amniotic cavity is temporarily connected to yolk sac cavity via:
Respuesta
-
a. Breakdown of oral membrane.
-
b. Allantois.
-
c. Neurenteric canal.
-
d. Vitello-intestinal duct.
-
e. Breakdown of cloaca! membrane.
Pregunta 8
Pregunta
All the following are parts of the intraembryonic mesoderm EXCEPT:
Respuesta
-
a. Sclerotome
-
. b. Intermediate cell mass.
-
c. Dermatome.
-
d. Lateral plate mesoderm.
-
e. Connecting stlak.
Pregunta 9
Pregunta
. Mesoderm is absent in:
Respuesta
-
a. Somites.
-
b. Oral membrane.
-
e. Dermomyotomes.
-
c. Nephrogenic cord.
-
d. Sclerotomes.
Pregunta 10
Pregunta
Which of the following abnormalities of the placenta is due to an abnormality in implantation?
Respuesta
-
a. Battledore placenta.
-
b. Accessory placenta.
-
c. Bipartite placenta.
-
d. Placenta praevia
-
e. Tripartite placenta
Pregunta 11
Pregunta
As regards the twins, choose the INCORRECTstatement:
Respuesta
-
a. They may be monozygotic or dizygotic.
-
c. Monozygotic twins have always identical sex & blood groups.
-
b. Conjoint twins are dizygotic twins.
-
d. Dizygotic twins may have identical sex & blood groups.
-
e. Monozygotic twins may have 2 amniotic sacs.
Pregunta 12
Pregunta
The Intervillous spaces contain:
Respuesta
-
a. Foetal blood.
-
b. Maternal blood.
-
c. A mixture of foetal & maternal blood.
-
d. Blood with high C02 content.
-
e. Blood with low 02 content.
Pregunta 13
Pregunta
At the caudal end of the primitive streak, ectoderm & endoderm meet at the:
Respuesta
-
a. Notochordal canal.
-
b. Cloaca! membrane.
-
c. Buccopharyngealmembrane.
-
d. Intraembryonic coelom
-
e. None of the above.
Pregunta 14
Pregunta
) All of the following are derivatives of the surface ectoderm except:
Respuesta
-
(A) The skin and its appendages.
-
(B) The lining of all orifices of the body that open into the skin.
-
(C) The nervous tissue & the pituitary gland.
-
(D) Adrenal medulla.
-
(E) Muscles of the iris.
-
(F) Muscles of the limbs.
Pregunta 15
Pregunta
) All of the following anomalies might be fatal to the embryo except:
Respuesta
-
(A) Too long umbilical cord.
-
(B) True knot of the umbilical cord.
-
(C) False knots of the umbilical cord.
-
(D) All of the above
Pregunta 16
Pregunta
Regarding the amnion, all of the following are true except:
Respuesta
-
(A) Amniotic cavity contains watery fluid.
-
(B) Hydroamnios may be due to esophageal atresia
-
(C) Oligohydraminos may be due to renal agenesis (Failure of formation of the kidneys).
-
(D) It prevents fetal movements.
Pregunta 17
Pregunta
All are the contents of the umbilical cord at birth except:
Respuesta
-
(A) 2 Umbilical arteries.
-
(B) 1 Umbilical veins.
-
(C) Wharton’s jelly.
-
(D) Allantois & vitellointestinal duct.
Pregunta 18
Pregunta
Down’s syndrome is due to:
Respuesta
-
(A) Triasomy of the chromosome 14.
-
(B) Triasomy of the chromosome 18.
-
(C) Triasomy of the chromosome 21.
-
(D) Triasomy of the chromosome 23.
Pregunta 19
Pregunta
chromosomal formula of turner syndrome is
Respuesta
-
44 +y
-
45+x
-
44+x
-
46+x
-
44+xxy
Pregunta 20
Pregunta
The visceral layer of the lateral plate mesoderm forms which of the following:
(
Respuesta
-
A) Muscles of the limbs.
-
(B) Anterolateral body wall muscles.
-
(C) Smooth muscles of the viscera (GIT).
-
dermis of the skin
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.