PPT-1 - 12 Cranial Nerve Anatomy

Dr Peterson 1 Cranial Nerve I Olfactory Nerve The axons of these cells extend through the cribriform plate of the ethmoid bone into the olfactory bulb at the anterior end of the olfactory nerve. There are 12 pairs of cranial nerves.. Name of the Cranial Nerves. I. Olfactory n.. II. Optic n.. III. Occulomotor n.. IV. . Trochlear. n.. V. Trigeminal n.. VI. . Abducent. n.. VII. Facial n.. VIII. . THE CRANIAL NERVES. CRANIAL NERVES. 12-pair. named “cranial” because each passes thru a foramina of the cranium. part of PNS. each with roman numeral (order from anterior .  posterior in which nerves arise from base of brain) & a name that indicates nerve distribution. . Cranial nerves are spinal nerves that come out of the brain instead of the spinal cord.. Cranial Nerves. . Cranial nerves are spinal nerves that come out of the brain instead of the spinal cord.. Cranial Nerve 1 Sensory nerve Olfactory Nerve controls sense of smell Cranial Nerve 2 on by sending information from retina Cranial Nerve 3 Motor nerve- Oculomotor Nerve-Controls most eye muscles W for copying. CRANIAL NERVES. 12-pair. named “cranial” because each passes thru a foramina of the cranium. part of PNS. each with roman numeral (order from anterior .  posterior in which nerves arise from base of brain) & a name that indicates nerve distribution. &. Trigeminal Neuralgia. . Contents. . Introduction . . . Embryology of trigeminal nerve.. . Nuclei of trigeminal nerve.. . Course of trigeminal nerve. . . Trigeminal Ganglion. . . Department of Morphology and General Pathology. Organization of the nervous system. . 1. . Central. . Nervous. . System. (. CNS. ) . a. Brain. b. Spinal cord. 2. . Peripheral Nervous System. (. PNS. Cranial Nerve VII: Facial. Fibers leave the pons, travel through the internal acoustic meatus, and emerge through the . stylomastoid. foramen to the lateral aspect of the face. Motor functions include facial expression, and the transmittal of autonomic impulses to lacrimal and salivary glands. This is the traditional scheme of Charles Judson Herrick (1868-1960), based on comparativeanatomy and descriptive embryology. C. J. Herrick, an American neuroanatomist, was for 54 years, which was fo - 12 Dr Ajaz Qadir, Sr Medicine Cranial Nerve VII: Facial Function ➢ Supplies the muscles of facial expression including platysma & stapedius muscle ➢ Secretomotor fibers to the lacrima Cranial nerveNerve nomenclatureOlfactoryTrochlear 168 Cranial nerveNerve nomenclatureTrigeminalGSA (face, oral cavity, FacialGSA (skin, mucosa, external (facial muscles), SA (taste)VestibulocochlearVA 1 ❖ The facial nerve contains approximately 10,000 fibers. ❖ 7000 myelinated fibers innervate the muscles of facial expression, stapedius muscle, postauricular muscles, posterior belly of dig DR. M. MD. MUSTAFA SHARIFF DEPARTMENT OF ANATOMY SENIOR LECTURER SRMDC - 2021 INTRODUCTION • It is fifth and largest cranial nerve. • It is mixed nerve ( sensory and motor) SENSORY TO ✓ Skin o “What do I have to do if cranial nerves are being monitored?” Laura Hemmer, M.D., FASA SNACC Neuromonitoring Subcommittee Linda S. Aglio, M.D., M.S. Arne Budde , M.D. Laura Hemmer, M.D., FASA A