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WorksheetsDevelopment of the Pharyngeal Arches
Total questions: 10
Worksheet time: 8mins
In which week do the pharyngeal arches develop?
By the end of 4th week
By the end of the third week
At th beginning of the 4th week
At the beginning of the 5th week
The pharyngeal arches develop as the result of
migration of the neural crest in the region of the head and neck
the development of the 4 pharyngeal arches in the neck region
the neural plate in the surface ectoderm
the nasofacial placode
Which of the following arches are rudimentary and are not visible on the surface of the embryo
First and Second
Second and third
Third and fourth
Fifth and sixth
From which pharyngeal arch is the maxillary prominence developed?
First
Second
Third
Fourth
The laryngeal cartilages develop from
second arch
third arch
first and second archs
fourth and sixth arches
From which pharyngeal pouch the middle ear develop?
First
Second
Third
Fourth
The branchial sinus results from
Persistent of the third branchial groove.
Persistent of the first branchial groove.
Persistent of the second branchial groove.
Persistent of the sixth branchial groove.
Treacher Collins Syndrome (Mandibulofacial Dysostosis) is caused by
anomalies in the second arch
gene mutation
anomalies in the third arch
anomalies in the second arch groove
The external ear develops by the appearance of
auditor depression
auditory grooves
ear placodes
six auricular hillocks
The forehead is formed by
the maxillary prominence
medial nasal prominence
Lateral nasal prominence
the frontal nasal prominence
