Question 1

________ Optic groove in neural fold

Accepted Answer

The answer of   ________ Optic groove in neural...

Question 2

________ Gives rise to the mandible

Accepted Answer

The answer of   ________ Gives rise to the...

Question 3

________ Primordial mouth

Accepted Answer

The stomodeum is the primitive mouth, which later gives rise to the oral cavity. The limb bud is a protrusion that will develop into the upper and lower extremities, the neuropore is an opening in the neural tube that will close during embryonic development, the septum transversum is a structure that separates the thoracic and abdominal cavities, and the cervical sinus is a temporary structure that forms during early embryonic development in the neck region.

Question 4

________ Tertiary chorionic villus

Accepted Answer

The answer of  ________ Tertiary chorionic villus
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Question 5

________ Contains umbilical vessels

Accepted Answer

The answer of  ________ Contains umbilical vessels
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Question 6

________ Forms from the paraxial mesoderm

Accepted Answer

The answer of   ________ Forms from the paraxial...

Question 7

________ Closes during the fourth week

Accepted Answer

The neuropore is a temporary opening at the caudal end of the neural tube. It closes during the fourth week of development, which is important for proper formation of the central nervous system. The limb buds develop in the fourth week but do not close; the septum transversum and cervical sinus develop in earlier weeks and do not close during the fourth week. The stomodeum (primitive mouth) does not close, but rather forms the oral cavity.

Question 8

________ Vitelline artery

Accepted Answer

The answer of  ________ Vitelline artery
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Question 9

________ Hyoid arch

Accepted Answer

The answer of   ________ Hyoid arch
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Question 10

________ Outgrowth of the ventrolateral body wall

Accepted Answer

Limb buds are outgrowths of the ventrolateral body wall that give rise to the upper and lower limbs in vertebrate embryos.

Question 11

________ Sinus venosus

Accepted Answer

The answer of  ________ Sinus venosus
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Question 12

________ Forms the major part of the diaphragm

Accepted Answer

The septum transversum is a mesodermal structure that divides the embryonic body into thoracic and abdominal cavities. It forms the majority of the diaphragm, along with the surrounding mesoderm and musculature. The limb bud is a structure that gives rise to the upper and lower limbs, the neuropore is a temporary opening in the neural tube during development, the cervical sinus is an indentation in the developing neck region that gives rise to some adult structures, and the stomodeum is the primitive oral cavity.

Question 13

______ Oropharyngeal membrane

Accepted Answer

The oropharyngeal membrane is the membrane separating the primitive mouth from the intestine. In the given image, the oropharyngeal membrane is marked as structure A.

Question 14

______ Separates the amniotic cavity from the foregut

Accepted Answer

The answer of  ______ Separates the amniotic cavity from...

Question 15

______ Part of the embryonic coelom

Accepted Answer

The answer of  ______ Part of the embryonic coelom
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Question 16

________ Neuropore

Accepted Answer

The answer of   ________ Neuropore
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Question 17

________ Ectodermal depression in the neck

Accepted Answer

The cervical sinus is a depression in the embryo's neck that forms as the pharyngeal arches grow and divide. It eventually disappears as the arches develop into structures such as the ear, jaw, and neck.

Question 18

______ Cloaca

Accepted Answer

Based on the image, the structure labeled "Cloaca" is located in the lower portion of choice B. It also appears to be closer to the posterior end of the organism, which is consistent with the location of the cloaca in many animals.

Question 19

______ Produces embryonic mesoderm

Accepted Answer

The answer of  ______ Produces embryonic mesoderm
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Question 20

______ Gives rise to a major part of the diaphragm

Accepted Answer

The answer of  ______ Gives rise to a major...

Quiz 1: Gametogenesis and Fertilization