Liz Maas
Quiz por , criado more than 1 year ago

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Liz Maas
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Development of the Pharyngeal Apparatus (CF 5-6)

Questão 1 de 13

1

The cranial neural crest cells come from the diencephalon, midbrain, and hindbrain. They will collectively enter the pharyngeal arches to become connective tissue and bone.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 2 de 13

1

Which of the following is incorrect?

Selecione uma das seguintes:

  • The 1st pharyngeal arch is made from midbrain plus the 1st and 2nd rhombomeres

  • The 2nd pharyngeal arch is made from the 4th rhombomere

  • The 3rd pharyngeal arch is made from the 5th, 6th, and 7th rhombomeres

  • The third rhombomere is not present in an arch because it produces so few CNCCs that they join with other rhombomeres.

  • There are 8 rhombomere segments made from the hindbrain.

Explicação

Questão 3 de 13

1

Mesoderm at the center of each pharyngeal arch tends to become skeletal muscles of the head and neck. The paraxial mesoderm at the junction of the pharyngeal arches and heart becomes cardiac muscle.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 4 de 13

1

Which of the following is incorrect?

Selecione uma das seguintes:

  • The pharyngeal arch artery is derived from the splanchnic mesoderm

  • The pharyngeal arch artery attaches the aortic sac to the ventral aorta

  • The pharyngeal arch artery is embedded in the mesenchyme of the pharyngeal arches

  • The pharyngeal arch artery branches from the aortic sac

  • s'all good homeslice

Explicação

Questão 5 de 13

1

Angioblasts are the precursors of blood vessels and they are dispersed throughout the mesenchyme. The pharyngeal arches come only from splanchnic mesoderm.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 6 de 13

1

The cell bodies of motor neurons are outside of the pharyngeal arches at the rhombencephalon. The sensory cranial ganglia neurons include placodes, neural crest, and glia

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 7 de 13

1

SHH is from the ectoderm. FGF and BMP are produced in the endoderm.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 8 de 13

1

Which of the following is correct?

Selecione uma das seguintes:

  • The cricothyroid, constrictors of pharynx, and intrinsic muscles of larynx are derived from the 4-6th pharyngeal arches

  • The stapes, greater horn, and upper portion of the hyoid bone are derived from the 2nd pharyngeal arch

  • The lower portion and lesser horn of the hyoid bone are derived from the 3rd pharyngeal arch

  • The muscles of mastication, lacrimal bone, and posterior belly of digastric are derived from the first pharyngeal arch

  • none of the above

Explicação

Questão 9 de 13

1

All bones derived from the first pharyngeal arch undergo intramembranous ossification. The stapes, styloid processes, and hyoid all undergo endochondrial ossification.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 10 de 13

1

The stapes, part of the hyoid bone, stylohyoid ligament, styloid process, and lesser horn of hyoid bone all come from Reichert's cartilage. The cricoid, arytenoid, and thyroid cartilages each from from the 4th and 6th pharyngeal arches.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 11 de 13

1

Which of the following is incorrect?

Selecione uma das seguintes:

  • The maxillary artery is derived from the first pharyngeal arch artery

  • The hyoid and stapedial arteries are derived from the second pharyngeal arch artery

  • The common and internal carotid arteries are derived from the third pharyngeal arch artery

  • The arch of the aorta comes from the left side of the 4th pharyngeal arch artery

  • The ligamentum arteriosum comes from the right side of the 6th pharyngeal arch artery

Explicação

Questão 12 de 13

1

The inferior parathyroid comes from the 4th pharyngeal pouch and the superior parathyroid comes from the 3rd pharyngeal pouch. The thyroid itself comes from the midline at the 2nd pharyngeal arch.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

Questão 13 de 13

1

The muscles of the tongue are not derived from the pharyngeal arches but the tongue itself is derived from parts of the 1st-4th pharyngeal arches. The first pharyngeal arch yields 2 lateral lingual swellings and the epiglottal swelling comes from the 2nd, 3rd, and 4th arch.

Selecione uma das seguintes:

  • Both true

  • First true, second false

  • First false, second true

  • Both false

Explicação

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