IAP UG Teaching slides 2015-16
THE CRANIAL NERVES
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IAP UG Teaching slides 2015-16
THE CRANIAL NERVES
• There are twelve cranial nerves, which leave the brain and pass through foramina in the skull. All the nerves are distributed in the head and neck except the tenth, which also supplies structures in the thorax and abdomen
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IAP UG Teaching slides 2015-16
THE CRANIAL NERVES
I. Olfactory
II. Optic
III. Oculomotor
IV. Trochlear
V. Trigeminal
VI. Abducent
VII Facial VIII Vestibulocochlear
IX Glossopharyngeal
X Vagus
XI Accessory
XII Hypoglossal
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IAP UG Teaching slides 2015-16
• The olfactory, optic and vestibulocochlear nerves are entirely sensory• The oculumotor, trochlear, abducent, accessory and hypoglossal nerves are entirely motor• The remaining nerves are mixed nerves. • The MOTOR or EFFERENT fibers of cranial nerves arise from groups of neurons in the brain, which are their nuclei of origin. • The SENSORY or AFFERENT fibers of the nerves arise neurons situated outside the brain, grouped to form ganglia or sited in peripheral sensory organs. Their processes enter the brain and grouped to form nuclei of termination.
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IAP UG Teaching slides 2015-16
OCULOMOTOR NERVE
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IAP UG Teaching slides 2015-16
OCULOMOTOR NERVE
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IAP UG Teaching slides 2015-16
III NERVE – APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
IV NERVE –APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
TRIGEMINAL NERVE
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IAP UG Teaching slides 2015-16
MAXILLARY DIVISION OF TRIGEMINAL
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IAP UG Teaching slides 2015-16
V NERVE –APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
VI NERVE – APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
VIII NERVE‐ APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
IX NERVE –APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
X NERVE – APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
XI NERVE – APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
XII NERVE‐ APPLIED ANATOMY
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IAP UG Teaching slides 2015-16
Thank You
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