Lecture 30/31 Embryology

Question 1 of 18

1

Morphogenesis is

Select one of the following:

Ordered assembly of cells to form complex organs
processes by which cells interact and become permanently changed
formation of body structures and organs
progressive series of changes in structures and functions that lead to maturity
Processes by which cells become different to one another

Explanation

Question 2 of 18

6

Select from the dropdown lists to complete the text.

Complete each of the following sentences

The first diploid cell formed by fusion of egg and sperm is a ( zygote, Blastocyst, Embryo, Cleavage, Morula, Blastocele ).
A ( Blastocyst, Zygote, Embryo, Cleavage, Morula, Blastocele ) is the early stage in development before implantation, it consists of an outer trophoblast and an inner cell mass.
An ( Embryo, Morula, Cleavage, Zygote, Blastocyst, Blastocele ) is an egg that has been fertilised by a sperm that has undergone one or more divisions
( Cleavage, Zygote, Blastocyst, Embryo, Blastocele, Morula ) results in a solid cluster of cells called a ( Morula, Zygote, Blastocyst, Embryo, Cleavage, Blastocele ).
The Accumulation of secretions within the trophoblast lead to the formation of a cavity called the ( Blastocele, Zygote, Blastocyst, Embryo, Cleavage, Morula ).

Explanation

Question 3 of 18

1

The Zonula Pellucida is the capsule that surrounds the initial embryo before implantation

Select one of the following:

True
False

Explanation

Question 4 of 18

3

Which of the following statements is true regarding Cleavage

Select one or more of the following:

Cleavage results in an increase in the number of cells
Cleavage results in an increase in the size of the embryo
Cleavage results in the formation of a Zygote then ultimately a Blastocyst
Cleavage results in the formation of a Morula then ultimately a Blastocyst
Cleavage results in the formation of a Morula then ultimately a Blastocele
Cleavage results in the formation of a Zygote then ultimately a Morula
Placental Mammals undergo only partial cleavage
Avian Animals undergo only partial cleavage
Avian Mammals have minimal yolk
Placental Mammals have minimal yolk

Explanation

Question 5 of 18

2

The Trophoblast of a Blastocyst has

Select one or more of the following:

Tighter Junctions than the Embryonic Disc
GAP junctions allowing for better communication
Facilitates the absorption of nutrients
undergoes transformation to give 3 germ layers
surrounds the blastocele

Explanation

Question 6 of 18

3

Which of the following statements regarding Gastrulation is correct?

Select one or more of the following:

Leads to the formation of 3 germ layers: Endoderm, Mesoderm, Ectoderm
Arises from Trophoblast rearrangement
Arises from Embryonic Disc rearrangement
The first cells that migrate through the primitive strike give rise to Endoderm
The first cells that migrate through the primitive strike give rise to Mesoderm
The first cells that migrate through the primitive strike give rise to Ectoderm
The Coelem establishes it self within the lateral mesoderm
The Coelem establishes it self within the Paraxial mesoderm
Somatic Mesoderm is attached to Endoderm
Splanchic Mesoderm is attached to Endoderm

Explanation

Question 7 of 18

3

Ectoderm gives rise to

Select one or more of the following:

Epidermis of Skin
Dermis of Skin
CNS
Adrenal Medulla
Visceral Pleura and Peritoneum
GIT
Parenchyma of the Liver
Lining of the Tarchea
Appendicular Skeleton
Uterus

Explanation

Question 8 of 18

3

Splanchic Mesoderm gives rise to

Select one or more of the following:

Yolk Sac
Allantois
Visceral Pleura/Peritoneum
Myocardium
Amnion
Chorion
Parietal Pleura
Pericardium
Uterus
Renal Pelvis

Explanation

Question 9 of 18

3

Which of the following structures are derived from endoderm?

Select one or more of the following:

Lining of GIT
Dermis of Skin
Lining of Larynx
Lining of Trachea
Urogenital Sinus
Renal Pelvis
Liver Parenchyma
Pancreas Parenchyma
Kidney Tubules
Amnion/Chorion

Explanation

Question 10 of 18

1

The Notochord gives rise to the vertebral column

Select one of the following:

True
False

Explanation

Question 11 of 18

6

Select from the dropdown lists to complete the text.

A is the ( Primitive Gut, Chorion, Amnion, Alantochorion, Alantois, Yolk Sac )
B is the ( Chorion, Primitive Gut, Amnion, Alantochorion, Alantois, Yolk Sac )
C is the ( Amnion, Primitive Gut, Chorion, Alantochorion, Alantois, Yolk Sac )
D is the ( Alantochorion, Primitive Gut, Chorion, Amnion, Alantois, Yolk Sac )
E is the ( Alantois, Primitive Gut, Chorion, Amnion, Alantochorion, Yolk Sac )
F is the ( Yolk Sac, Primitive Gut, Chorion, Amnion, Alantochorion, Alantois )

Explanation

Question 12 of 18

3

Which of the following statements are true

Select one or more of the following:

Red represents Trophoblast
Red represents Mesoderm
Red represents Endoderm
Green represents Endoderm
Green represents Mesoderm
Green represents Trophoblast
Blue represents Trophoblast
Blue represents Endoderm
Blue represents Mesoderm

Explanation

Question 13 of 18

3

Which statements regarding the Chorion are correct?

Select one or more of the following:

Part of it is derived from Mesoderm
Part of it is derived from Endoderm
Part of it is derived from the Trophoblast
Mediates the Attachment to the Uterus
It is a fluid filled sac that protects the embryo
Regresses over time in mammals
contributes primitive germ cells
derived from primitive gut
fluid filled sac that collects waste
A portion of it fuses with the Alantois

Explanation

Question 14 of 18

3

Which statements regarding the Amnion are correct?

Select one or more of the following:

Derived from Endoderm
Derived from Mesoderm
Derived from the Trophoblast
mediates attachment to the uterus
is a fluid filled sac that protects the embryo
eventually fuses with the chorion
contributes primitive germ cells
derived from primitive gut
collects waste from the embryo
Regresses with time in mammals

Explanation

Question 15 of 18

3

Which of the following statements are correct regarding the Yolk Sac?

Select one or more of the following:

Derived from Endoderm
Derived from Mesoderm
Derived from the Trophoblast
Mediates attachment to the Uterus
Fluid filled sac that protects the embryo
derived from the primitive gut
regressive with time in mammals
contributes primitive germ cells
fluid filled sac that collects waste
eventually fuses with the chorion

Explanation

Question 16 of 18

1

Which of the following are incorrect?

Select one of the following:

The Allantois is derived from the primitive gut
The Allantois is a fluid filled sac that collects waste
The Allantois fuses with the Chorion to form the foetal contribution to the placenta
The Allantochorion is derived of both Mesoderm and Trophoblast
The Allantois decreases in size other time in mammals

Explanation

Question 17 of 18

1

The first seven somitomeres give rise to Somites

Select one of the following:

True
False

Explanation

Question 18 of 18

1

Which of the following regarding Somitomeres is incorrect?

Select one of the following:

Some give rise to mesodermal structures of the head
Some give rise to the axial skeleton and musculature
Arise from thickenings of mesoderm adjacent to the neural tube
Consist of Lateral Mesoderm, both Somatic and Splanchic.
None of the Above are incorrect

	Created by Daniel Mosele almost 8 years ago

DVM1 Veterinary Bioscience: Cells to Systems (Theme 9 Embryology) Quiz on Lecture 30/31 Embryology, created by Daniel Mosele on 08/06/2016.

Lecture 30/31 Embryology

Question 1 of 18

Morphogenesis is

Select one of the following:

Explanation

Question 2 of 18

Select from the dropdown lists to complete the text.

Explanation

Question 3 of 18

The Zonula Pellucida is the capsule that surrounds the initial embryo before implantation

Select one of the following:

Explanation

Question 4 of 18

Which of the following statements is true regarding Cleavage

Select one or more of the following:

Explanation

Question 5 of 18

The Trophoblast of a Blastocyst has

Select one or more of the following:

Explanation

Question 6 of 18

Which of the following statements regarding Gastrulation is correct?

Select one or more of the following:

Explanation

Question 7 of 18

Ectoderm gives rise to

Select one or more of the following:

Explanation

Question 8 of 18

Splanchic Mesoderm gives rise to

Select one or more of the following:

Explanation

Question 9 of 18

Which of the following structures are derived from endoderm?

Select one or more of the following:

Explanation

Question 10 of 18

The Notochord gives rise to the vertebral column

Select one of the following:

Explanation

Question 11 of 18

Select from the dropdown lists to complete the text.

Explanation

Question 12 of 18

Which of the following statements are true

Select one or more of the following:

Explanation

Question 13 of 18

Which statements regarding the Chorion are correct?

Select one or more of the following:

Explanation

Question 14 of 18

Which statements regarding the Amnion are correct?

Select one or more of the following:

Explanation

Question 15 of 18

Which of the following statements are correct regarding the Yolk Sac?

Select one or more of the following:

Explanation

Question 16 of 18

Which of the following are incorrect?

Select one of the following:

Explanation

Question 17 of 18

The first seven somitomeres give rise to Somites

Select one of the following:

Explanation

Question 18 of 18

Which of the following regarding Somitomeres is incorrect?

Select one of the following:

Explanation