Liz Maas
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Liz Maas
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General Embryology 3 (CF3)

Frage 1 von 11

1

Which of the following is correctly matched?

Wähle eine der folgenden:

  • sclerotome...tendons

  • syndetome...cartilage

  • sclerotome...bones

  • just sclerotome choices

  • all of these choices

Erklärung

Frage 2 von 11

1

The dorsal component of the lateral plate mesoderm forms somatic mesoderm which will give rise to skeletal muscles of the limbs. The ventral component becomes splanchnic mesoderm which will form the muscles and connective tissues of digestive and respiratory tracts

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 3 von 11

1

Bones of the neurocranium include the parietal, occipital, and the temporal bone. Bones of the viscerocranium include the maxilla, zygomatic, lacrimal, and temporal bone.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 4 von 11

1

The intervertebral disc is made of the annulus fibrosus and nucleus pulposus. The spinal nerves will resection the sclerotomes such that each vertebrae is made from a cranial and caudal portion of different but adjacent sclerotomes.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 5 von 11

1

Phocomelia is the absence or abnormal development of limbs such that they are either absent or the long bones are shortened with missing proximal elements. This is commonly caused by maternal use of thalidomide for treating morning sickness.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 6 von 11

1

The Zone of Polarizing Activity determines the pattern of digit formation. Anterior transplantation of ZPA causes syndactyly.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 7 von 11

1

The specification of the gut tube is initiated by a gradient of retinoic acid which will affect expression of transcription factors. The foregut extends to the liver bud and includes the esophagus, stomach, duodenum, and jejunum.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both fase

Erklärung

Frage 8 von 11

1

The liver arises during the 4th week from the hepatic diverticulum into the mesenchyme which will induce the endoderm to form the glandular epithelium of the liver. FGF2 and BMP secreted by cardiac mesoderm allows the formation of liver tissue.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 9 von 11

1

The notochord promotes pancreas development by secreting SHH in the endoderm. The pancreas begins as ventral and dorsal outgrowths which will eventually fuse at the 5th month.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 10 von 11

1

Retinoic acid produced by the mesoderm induces the development of lung buds. The splanchnic mesoderm of the foregut also develops into the cartilaginous, muscular, and connective tissue components of the trachea and lungs.

Wähle eine der folgenden:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Erklärung

Frage 11 von 11

1

Which of the following is true regarding subdivisions of the mesoderm at the end of neurulation?

Wähle eine der folgenden:

  • intermediate mesoderm is mesial to the paraxial mesoderm

  • chorda mesoderm is distal to the paraxial mesoderm

  • the lateral plate mesoderm is distal to the chorda mesoderm

  • chorda mesoderm is between the neural tube and the paraxial mesoderm

  • paraxial mesoderm is in between the lateral plate mesoderm and the intermediate mesoderm

Erklärung

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