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Training Collections
Library Memberships
Black Friday Save 30%On-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Black Friday Save 30%Practice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Black Friday Save 40%Unlock access to our full Course Library and all self-paced Fellowships.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Dr. Resnick's MSK Conference
BLACK FRIDAY SAVE 30%Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
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Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
Lesson
Surface Anatomy of the Brain, Sulci & Gyri
19 topics, 41 min.
Introduction to Gross Anatomy of the Brain
4 m.Frontal Lobar Anatomy
5 m.Sylvian Fissure
3 m.Middle Frontal Gyrus
2 m.Inferior Parietal Lobule
2 m.Central Sulcus of Rolando
3 m.Intraparietal Sulcus
2 m.Localizing the Intraparietal Lobule Part 2
2 m.Localizing the Intraparietal Lobule Part 3
2 m.Pars Marginalis
2 m.Parieto-occipital Sulcus
2 m.Pars Marginalis on Axial Imaging
3 m.Midline Sagittal Commissures
2 m.Basic Brainstem Anatomy
2 m.Midline Cerebellum (Vermis)
3 m.Midline Cisterns and Spaces
2 m.Midline Sagittal Blood Supplies
4 m.Midline Skeletal Anatomy
3 m.Miscellaneous Midline Structures
3 m.Lesson
MRI Mastery Series: Cranial Nerve Anatomy
52 topics, 2 hr. 14 min.
The Olfactory Nerve – Cranial Nerve I
4 m.The Olfactory Bulb
5 m.The Olfactory Tracts
5 m.The Optic Nerve – Cranial Nerve II
3 m.The Globe and Optic Pathway
5 m.Chiasm & Retrochiasmatic Pathway
3 m.Destinations of Optic Nerve Signals
3 m.The Oculomotor Nerve – Cranial Nerve III
4 m.Oculomotor Nerve: Course, Adjacent Structures & Destination
4 m.Oculomotor Nerve: Nuclei and Intramedullary Course
3 m.Third Nerve Syndromes
5 m.The Trochlear Nerve - Cranial Nerve IV
3 m.Trochlear Nerve: Course and Pathologies
3 m.The Trigeminal Nerve – Cranial Nerve V
3 m.Trigeminal Nerve Synapses in the Brainstem
6 m.Nuclear Anatomy and Position of the Trigeminal System
4 m.Parasympathetic Ganglia Anatomy of the Head and Neck
2 m.MRI anatomy of the Submandibular Ganglion
4 m.MRI Anatomy of the Pterygopalatine Ganglion
3 m.Trigeminal Nerve - V1 Division
2 m.Trigeminal Nerve - V2 Division
2 m.Trigeminal Nerve - V3 Division
3 m.The Abducens Nerve – Cranial Nerve VI
3 m.Cranial Nerves 1-6: Review
3 m.Abducens Nerve Nucleus and Nerve
4 m.Identifying the Cisternal Abducens Nerve
3 m.The Facial Nerve: Nucleus and Intramedullary Course
3 m.The Facial Nerve – Cranial Nerve VII
2 m.Facial Nerve: Medullary, Cisternal, and Canalicular Segments
3 m.Seventh Nerve Segments on MRI
5 m.Facial Nerve: Motor, Sensory, and Parasympathetic Branches
2 m.Proximal Branches of the Facial Nerve
3 m.Distal Branches of the Facial Nerve
2 m.The Posterior Auricular Nerve
2 m.The Greater Petrosal Nerve
2 m.The Vestibulocochlear Nerve – Cranial Nerve VIII
4 m.Cranial Nerves 7 & 8: Cisternal Course at the CPA
2 m.Vestibulocochlear Nerve: Cochlea and Internal Auditory Canal
2 m.Glossopharyngeal Nerve – Cranial Nerve IX
2 m.Glossopharyngeal Nerve Course
2 m.Exit of the Glossopharyngeal Nerve
2 m.Nuclei of the Glossopharyngeal Nerve
3 m.Glossopharyngeal Nerve Summary
2 m.The Vagus Nerve – Cranial Nerve X
2 m.Nuclei of the Vagus Nerve
2 m.The Innervations of the Vagus Nerve
4 m.Function of Vagal Nuclei
3 m.Accessory Nerve – Cranial Nerve XI
2 m.Accessory Nerve Summary
3 m.The Hypoglossal Nerve – Cranial Nerve XII
3 m.The Descent of the Hypoglossal Nerve
2 m.The Real Origin of the Hypoglossal Nerve
2 m.0:00
Dr. P here talking about the reater petrosal nerve,
0:03
a branch of the facial nerve.
0:07
It's an important nerve,
0:08
but it's one that doesn't get a lot of attention.
0:10
It arises at a locus where the geniculate ganglion
0:14
provides a marker.
0:15
So here's your geniculate ganglion right there.
0:17
And here is the curve,
0:19
the genu of the facial nerve right there.
0:21
It's hard to see the curve,
0:22
but I'll draw it so you can fantasize it,
0:25
and I'm going to put a little color on it.
0:28
And then coming forward in an oblique fashion
0:31
is the greater petrosal nerve.
0:33
Now, there's some high signal here
0:34
because there's a petrosal plexus of slow flowing vessels
0:39
right there, that contribute to that hyper,
0:42
or apparent hyperintensity.
0:44
The greater petrosal nerve provides parasympathetic
0:47
innervation to several glands, including nasal glands,
0:50
palatine glands, the lacrimal gland,
0:52
and the pharyngeal gland.
0:54
It also provides parasympathetic innervation to the
0:57
sphenoid sinus, the frontal sinus, the maxillary sinus,
1:01
the ethmoid sinus, and the nasal cavity.
1:03
This is an important nerve.
1:05
It also has taste fibers for the lesser palatine nerve
1:09
and the palate, and also the greater palatine nerve.
1:12
It contributes to the otic ganglion,
1:14
and it arises again at the level
1:16
of the geniculate ganglion,
1:17
where it joins the lesser petrosal nerve
1:20
to reach the otic ganglion.
1:22
In the sagittal projection,
1:23
if you want to find that nerve,
1:24
you can just cross reference.
1:26
Let's take our little cross reference marker right here.
1:29
There is our geniculate area right there,
1:32
and just in front of it,
1:33
you're going to find the greater petrosal nerve.
1:35
So right there is going to be the greater petrosal nerve,
1:38
which again,
1:38
is slightly hyperintense for reasons
1:41
we already mentioned.
1:41
Dr. P out.
The Greater Petrosal Nerve
HIDEInteractive Transcript
0:00
Dr. P here talking about the reater petrosal nerve,
0:03
a branch of the facial nerve.
0:07
It's an important nerve,
0:08
but it's one that doesn't get a lot of attention.
0:10
It arises at a locus where the geniculate ganglion
0:14
provides a marker.
0:15
So here's your geniculate ganglion right there.
0:17
And here is the curve,
0:19
the genu of the facial nerve right there.
0:21
It's hard to see the curve,
0:22
but I'll draw it so you can fantasize it,
0:25
and I'm going to put a little color on it.
0:28
And then coming forward in an oblique fashion
0:31
is the greater petrosal nerve.
0:33
Now, there's some high signal here
0:34
because there's a petrosal plexus of slow flowing vessels
0:39
right there, that contribute to that hyper,
0:42
or apparent hyperintensity.
0:44
The greater petrosal nerve provides parasympathetic
0:47
innervation to several glands, including nasal glands,
0:50
palatine glands, the lacrimal gland,
0:52
and the pharyngeal gland.
0:54
It also provides parasympathetic innervation to the
0:57
sphenoid sinus, the frontal sinus, the maxillary sinus,
1:01
the ethmoid sinus, and the nasal cavity.
1:03
This is an important nerve.
1:05
It also has taste fibers for the lesser palatine nerve
1:09
and the palate, and also the greater palatine nerve.
1:12
It contributes to the otic ganglion,
1:14
and it arises again at the level
1:16
of the geniculate ganglion,
1:17
where it joins the lesser petrosal nerve
1:20
to reach the otic ganglion.
1:22
In the sagittal projection,
1:23
if you want to find that nerve,
1:24
you can just cross reference.
1:26
Let's take our little cross reference marker right here.
1:29
There is our geniculate area right there,
1:32
and just in front of it,
1:33
you're going to find the greater petrosal nerve.
1:35
So right there is going to be the greater petrosal nerve,
1:38
which again,
1:38
is slightly hyperintense for reasons
1:41
we already mentioned.
1:41
Dr. P out.
Report
Description
Faculty
Stephen J Pomeranz, MD
Chief Medical Officer, ProScan Imaging. Founder, MRI Online
ProScan Imaging
Tags
Temporal bone
Salivary Glands
Paranasal sinuses
Neuroradiology
MRI
Head and Neck
Brain
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