Tag Pharyngeal Branchial Arches Special Embryology
Original 38+ Pretrematic Nerve Of Second Arch
Original 38+ Pretrematic Nerve Of Second Arch. Ear development is attributed to both the first and second arch. Can also be caused by rubella in first trimester. The second arch becomes the hyoid and jaw support.1 in fish, the other posterior arches contribute to the branchial skeleton, which support in some lower animals, each arch is supplied by two cranial nerves. Second arch (chorda tympani is p.t.) arch origin of vagus (x).
Original 47+ Pretrematic Nerve Of Third Arch
Original 47+ Pretrematic Nerve Of Third Arch. The trigeminal nerve (the fifth cranial nerve, or simply cn v) is a nerve responsible for sensation in the face and motor functions such as biting and chewing. The third occipital nerve is the superficial medial branch of c3 dorsal ramus. The third occipital nerve supplies an area of the medial occipital scalp, overlapping with areas supplied by the greater and lesser occipital nerves.