The<unk>  branchial arch, also called the<unk>  and mandibular arch, is the<unk>  of six branchial arches that develops in fetal life.  It is located between the stomodeum and the<unk><unk>  groove.
First pharyngeal arch
Branchial arch
Branchial pouch
Pharyngeal pouch 
Hard palate
Pharyngeal recess
Dental alveolus
Mucogingival junction