CMMB 403 Lecture Notes - Lecture 32: Truncus Arteriosus, Pharyngeal Arch, Neural Crest
6 Jan 2019
School
Course
Professor
Document Summary
Migration of the cranial neural crest to produce the human face. The frontonasal process contributes to the forehead, nose, philtrum of the upper lip, and primary plate. The lateral nasal process generates the sides of the nose. The maxillomandibular process gives rise to the lower jaw, much of the upper jaw, and the sides of the middle and lower regions of the face. Cranial neural crest cell migration in the mammalian. Neural crest cells entering the indicated pharyngeal arches form the bones and cartilage. Bones of the middle ear come from neural crest of the first two pharyngeal arches. Structures formed in the human face by the mesenchymal cells of the neural crest. Facial bones are from the neural crest, some cells are from pharyngeal arch 1. Anterior to pharyngeal arch, cranioneurocrest is the only one that can form facial bones. Incus and malleus from pharyngeal arch 1, stapes from pharyngeal arch 2.
