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Fig. 1. Longitudinal and horizontal section through the head of a fifty-four hours' chick embryo

Showing early stage in the formation of the olfactory pits, also the visceral clefts with their communication with the exterior. Picric acid, x 35 diameters.

Alphabetical List of References
ah. Alimentary canal. aV. Anterior prolongation of alimentary canal. ao.r Dorsal aorta. a. r. Anterior root of a spinal nerve. mtcl. Auditory vesicle. b. a. Branchial artery. br. 1. First branchial arch. br. 2. Second branchial arch. c. h. cerebral hemisphere. f. b. forebrain, g. gill. h. 2. Second head-cavity. h . b. Hindbrain. hy. Hyoid arch. inf. Infundibulum, I. c. Lachrymal cleft. m. b. Midbrain. Mn. Mandibular arch. m. p. Muscle plate. M.v. Maxillary arch. n. Notochord. o. c. Optic cup or eye. olf. Olfactory pit. ol. V. Olfactory vesicle or lobe. r. i. Inferior rectus muscle. r. s. Superior rectus muscle. Sch. Schneiderian folds. sp. Spinal cord. tr. Trabecula3 cranii. v. c. Visceral cleft. I. Olfactory nerve. II. Optic nerve. III. Third or oculomotor nerve. V. Trigeminal nerve. V a. Opiithalmic branch of the trigeminal nerve, or ramus ophthalmicus profundus. V 3. Inferior maxillary branch of the trigeminal nerve. VII. Facial nerve. VII a. Ophthalmic branch of the facial nerve, or ramus ophthalmicus superficialis. VIII. Auditory nerve. IX. Glossopharyngeal nerve. X. Vagus or pneumogastric nerve.
Historic Disclaimer - information about historic embryology pages 
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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)
Vertebrate Olfactory Organ: Plate 13 | Plate 14 | Fig. 01 | Fig. 02 | Fig. 19 | Fig. 20 | 1879 Paper

Cite this page: Hill, M.A. (2024, April 18) Embryology Marshall1879 fig01.jpg. Retrieved from

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