0204 Plant Sciences. 1  Plant Sciences, General. 2  Agronomy and Crop Science. 3  Horticulture Science.  Plant Breeding and 1  Genetics. Agricultural Plant Pathology.  Agricultural Plant 1  Physiology. Plant Protection (Pest Management)  Range Science and Management.
The roof of each nasal cavity is formed in its upper third to one half by the nasal bone and more inferiorly by the junctions of the upper lateral cartilage and nasal septum.Connective tissue and skin cover the bony and cartilaginous components of the dorsum of the nose.he nasal cavity (or nasal fossa) is a large air filled space above and behind the nose in the middle of the face. Each cavity is the continuation of one of the two nostrils.
From Wikipedia, the free encyclopedia. The surface ectoderm (or external ectoderm) forms the following structures: 1  Skin (only epidermis; dermis is derived from mesoderm) (along with glands, hair, and nails). 2  Epithelium of the mouth and nasal cavity salivary glands, and glands of mouth and nasal cavity. Epithelium of the mouth and nasal cavity salivary glands, and glands of mouth and nasal cavity. 2  Tooth enamel (as a side note, dentin and dental pulp are formed from ectomesenchyme which is derived from ectoderm (specifically neural crest cells and travels with mesenchmyal cells).