12Dec 2017

ANATOMICAL STUDIES ON THE CRANIAL NERVES AND GANGLIA OF THE HEAD REGION OF THE LIZARD UROMASTYX AEGYPTIA MICROLEPIS. I. THE NERVI "OLFACTORIUS, OPTICUS AND OCTAVUS".

  • Department of Zoology, Faculty of Science, Cairo University, Egypt.
  • Department of Biology, Faculty of Science, TaifUniversity, KSA.
  • Department of Zoology, Faculty of Science, Sirt University, Lybia.
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The olfactory nerve leaves the nasal capsule through separate foramina, i.e., there is no foramen olfactorium advehens and enter the cranial cavity through the foramen olfactorium evehens. An olfactory peduncle is found between the olfactory bulb and the olfactory lobe. It carries pure special somatic sensory fibres. The optic nerve exits the eyeball to the orbital region through a foramen in the sclera cartilage. The two optic nerves met together forming a massive decussation. The octaval nerve has one root, arises from the mid-lateral side of the meylencephalon. It has a large vestibular ganglion, which is located partially intracranial and partially intracapsular. The octaval nerve has an anterior branch and three posterior ones. This nerve has two acoustic foramina in the medial wall of the auditory capsule.

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[Dakrory. A. I, Hussein. N. A, Al-Wqdany E.A. and Mahgoub. A. F. (2017); ANATOMICAL STUDIES ON THE CRANIAL NERVES AND GANGLIA OF THE HEAD REGION OF THE LIZARD UROMASTYX AEGYPTIA MICROLEPIS. I. THE NERVI "OLFACTORIUS, OPTICUS AND OCTAVUS". Int. J. of Adv. Res. 5 (Dec). 382-389] (ISSN 2320-5407). www.journalijar.com

Ahmed Imam Dakrory
Department of Zoology, Faculty of Science, Cairo University, Egypt, Department of Biology, Faculty of Science, Taif University, KSA

DOI:

Article DOI: 10.21474/IJAR01/5972      
DOI URL: https://dx.doi.org/10.21474/IJAR01/5972

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