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Quiz

Development of the Pharyngeal Apparatus (CF 5-6)

Liz Maas 13 perguntas

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Perguntas do quiz (13)

  1. 1The cranial neural crest cells come from the diencephalon, midbrain, and hindbrain. They will collectively enter the pharyngeal arches to become connective tissue and bone.
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  2. 2Which of the following is incorrect?
    1. AThe 1st pharyngeal arch is made from midbrain plus the 1st and 2nd rhombomeres
    2. BThe 2nd pharyngeal arch is made from the 4th rhombomere
    3. CThe 3rd pharyngeal arch is made from the 5th, 6th, and 7th rhombomeres
    4. DThe third rhombomere is not present in an arch because it produces so few CNCCs that they join with other rhombomeres.
    5. EThere are 8 rhombomere segments made from the hindbrain.
  3. 3Mesoderm 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.
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  4. 4Which of the following is incorrect?
    1. AThe pharyngeal arch artery is derived from the splanchnic mesoderm
    2. BThe pharyngeal arch artery attaches the aortic sac to the ventral aorta
    3. CThe pharyngeal arch artery is embedded in the mesenchyme of the pharyngeal arches
    4. DThe pharyngeal arch artery branches from the aortic sac
    5. Es'all good homeslice
  5. 5Angioblasts are the precursors of blood vessels and they are dispersed throughout the mesenchyme. The pharyngeal arches come only from splanchnic mesoderm.
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  6. 6The 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
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  7. 7SHH is from the ectoderm. FGF and BMP are produced in the endoderm.
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  8. 8Which of the following is correct?
    1. AThe cricothyroid, constrictors of pharynx, and intrinsic muscles of larynx are derived from the 4-6th pharyngeal arches
    2. BThe stapes, greater horn, and upper portion of the hyoid bone are derived from the 2nd pharyngeal arch
    3. CThe lower portion and lesser horn of the hyoid bone are derived from the 3rd pharyngeal arch
    4. DThe muscles of mastication, lacrimal bone, and posterior belly of digastric are derived from the first pharyngeal arch
    5. Enone of the above
  9. 9All bones derived from the first pharyngeal arch undergo intramembranous ossification. The stapes, styloid processes, and hyoid all undergo endochondrial ossification.
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false
  10. 10The 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.
    1. ABoth true
    2. BFirst true, second false
    3. CFirst false, second true
    4. DBoth false

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