EMBRYOLOGY
PHARYNGEAL ARCHES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Pharyngeal mucosa is innervated by the glossopharyngeal because it develops from the
|
|
1st arch
|
|
|
2nd arch
|
|
|
3rd arch
|
|
|
4th arch
|
Explanation:
Detailed explanation-1: -The third pharyngeal arch cartilage develops into the greater horn of the hyoid. The muscle derived from the third pharyngeal arch is the stylopharyngeus.
Detailed explanation-2: -The glossopharyngeal nerve derives from the third pharyngeal arch and is the only structure formed by the third pharyngeal arch, although the third pharyngeal pouch is the embryologic origin of part of the thymus.
Detailed explanation-3: -[2] The pharyngeal arches develop in the fourth week of embryological development in vertebrates and are composed of ectoderm externally, endoderm internally, and a mesoderm core containing both mesoderm and neural crest cells.
There is 1 question to complete.