Glossopharyngeal nerve is a mixed nerve. It is attached to the lateral part of the medulla at its anterior aspect by several filaments ventral to the restiform body and are separated by a narrow interval from the preceding nerve in front and the vagus behind. The nerve fibres converge laterally into a bundle that pierces […]
Acoustic or Auditory nerve is the nerve of sense of hearing and equilibrium. Acoustic or Auditory nerve arises from the medulla at the lateral part of the corpus trapezoideum just behind the preceding nerve. Acoustic or Auditory nerve arises from the medulla at the lateral part of the corpus trapezoideum just behind the preceding nerve.
Facial nerve is the seventh cranial nerve and is a mixed nerve. It arises from the lateral part of the corpus trapezoideum immediately behind the pons. It passes outwards across the fifth cranial nerve and in front of the eighth cranial nerve and enters the internal auditory meatus with it. At the bottom of this
Abducent nerve is a motor nerve. It arises just behind the pons, lateral to the inferior pyramid of the medulla. It passes forward across the pons, pierces the dura and accompanies the nerves in the cavernous sinus. It leaves the cranium through the foramen orbitorotundum reaches the orbit and supplies the lateral rectus and retractor
Trigeminal nerve is a mixed nerve. It is the largest of the cranial nerves. It is connected to the lateral aspect of the pons by a large sensory root and a small motor root; the sensory root forms the semilunar ganglion under which the motor root passes forward. The convex face of the ganglion gives
Trochlear nerve is the motor nerve to the superior oblique muscle of the eyeball. It is the finest of the cranial nerves. It arises from the dorsal aspect of midbrain close to and behind the corpora quadrigemina where the anterior cerebellar peduncle enters the midbrain. The nerve passes forward and outward along the lateral border of
Occulomotor nerve is the motor nerve to the muscles of the eyeball. It arises from the ventromedial aspect of the cerebral peduncle turns sharply outward and forward, crossing over the posterior primary branch of the emergent artery of the rete mirabile cerebri through the cavernous sinus along with the ophthalmic and the sixth cranial nerves.
Optic nerve is a nerve of sense for sight. This nerve is composed of medullated fibres devoid of neurilemma which are axons of the ganglion cells of retina. The fibres converge within the eyeball at the optic papilla, where they form the optic nerve. Then it pierces through the choroid and sclera, emerges from the
Olfactory nerve is a nerve of special sense for smell. It consists of fibers which are the axons of the olfactory cells in the olfactory part of the nasal mucous membrane. The fibres are non-medullated and are collected into small bundles enclosed in sheaths furnished by the meninges of the brain; pass through the cribriform
No. Name Kind Origin 1. Olfactory nerve Nerve of special sense (smell) Fore Brain 2. Optic nerve Nerve of special sense (sight) Fore Brain 3. Oculo Motor Nerve Motor nerve Fore Brain 4. Trochlear Nerve Motor Nerve Fore Brain 5. Trigeminal Nerve Mixed nerve Mid Brain 6. Abducent Nerve Motor nerve Mid Brain 7. Facial
