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8 08, 2018

Infratrochlear Nerve

By Dr. Joseph H Volker | 2018-08-30T09:52:43+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

The infratrochlear nerve is a division of the nasociliary nerve and emerges nearby the anterior ethmoidal foramen. It travels along the medial wall of the orbit prior leaving over the medial canthus. The infratrochlear nerve also laterally obtains a branch from the supratrochlear nerve. Infratrochleaar Nerve Functions The nerve travels inferiorly and innervates [...]

8 08, 2018

Facial Nerve: An Extracranial Course

By Dr. Joseph H Volker | 2018-09-12T05:56:35+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

The facial nerve comes out of cranial cavity, between the styloid and mastoid processes of the temporal bone via the stylomastoid foramen at the base of the skull. After coming from the foramen, it enters the posteromedial aspect of the parotid gland on the superficial plane and it bends forwards around the lateral aspect of [...]

8 08, 2018

Third Occipital Nerve

By Dr. Joseph H Volker | 2018-08-30T08:58:04+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

The C3 spinal nerve splits into an anterior ramus along with a posterior ramus. The posterior ramus divides into two medial branches and a lateral branch. The larger, superior medial branch is the third occipital nerve. From superior branch fibers of the third cervical nerve the third occipital nerve emerges at the level of the [...]

8 08, 2018

Trochlear Nerve

By Dr. Joseph H Volker | 2018-08-30T09:01:22+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

Trochlear nerve is the 4th cranial nerve. It is a motor nerve and supplies only 1 muscle the superior oblique muscle of the eyeball. Trochlear Nerve Unique Features It's the only cranial nerve which comes on the dorsal aspect of the brain. It's the most slender of all the cranial nerves. It's the [...]

8 08, 2018

Lacrimal Nerve

By Dr. Joseph H Volker | 2018-08-30T09:56:48+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

The lacrimal nerve is the smallest among the three branches of the ophthalmic nerve, once inside the orbit it travels onward alongside the upper margin of the lateral rectus muscle; along with lacrimal artery it goes with the lateral wall of the orbit and concludes in the lacrimal gland. Lacrimal Nerve Insertion Within [...]

8 08, 2018

Nerves of the Submandibular Region

By Dr. Joseph H Volker | 2018-09-12T06:34:40+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

Lingual Nerve From posterior section of the mandibular nerve, the lingual nerve originates and between the ramus of the mandible and the medial pterygoid muscle it descends. By passing inferior to the lower border of the superior constrictor of the pharynx and it inclines forwards subsequently, at its connection near the posterior end of the [...]

8 08, 2018

Great Auricular Nerve

By Dr. Joseph H Volker | 2018-08-30T09:03:12+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

The great auricular nerve is a branch of the cervical plexus. It originates from the anterior rami of the C2 as well as C3 spinal nerves rises upwards on the surface of the sternocleidomastoid muscle. Great Auricular Nerve Insertion From the posterior margin of the sternomastoid the great auricular nerve turns and on [...]

8 08, 2018

Abducent or Abducens Nerve

By Dr. Joseph H Volker | 2018-09-10T09:05:33+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

Abducent or Abducens Nerve is the 6th cranial nerve. Abuducent nerve is a motor  nerve and supplies only 1 muscle, the lateral rectus of the eye-ball. It is named so because it abducts the eye. Abducent nerve is also known as fan's nerve, because in ancient times (nonverbal age between the adolescent girls and boys), [...]

8 08, 2018

Supraorbital Nerve

By Dr. Joseph H Volker | 2018-08-30T10:17:50+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

The supraorbital nerve is one of the two ending branches of the frontal nerve. The supratrochlear and supraorbital nerves originate from the frontal branch and at the time of cutaneous surgery over the orbit are the ones at maximum risk of injury. Supra-Orbital Nerve Origin The supraorbital nerve emerges from fibers of the [...]

8 08, 2018

Mandibular Nerve

By Dr. Joseph H Volker | 2018-08-30T10:41:53+00:00 August 8th, 2018|Anatomy, Head and Neck, Nerves|0 Comments

Among the 3 sections of the trigeminal nerve the mandibular nerve is the largest one. Being composed of both sensory and motor fibres, it's a mixed nerve. It supplies all the structures originated from this arch because it is a nerve of the very first pharyngeal arch, example, muscles of mastication. Course and Connections The [...]