Anatomical Topography
Participants learn to integrate auricular, utilizing the neural portal of the outer ear (auricle) to provide non-invasive auricular neurostimulation. This training track presents clinical applications with the scope of mental health and social work.
1. Root of Helix
The root of the helix lies anteriorly from the cartilaginous ridge that separates the superior and inferior floor of the outer ear, in the area superior to the tragus, where the helix arises from the concha (more specifically, where the helix arises from the crus of the helix).
The neural target known as “Point Zero” sits in the notch of the cartilage at helical root.
Within the biomedical framework: Point Zero is considered to be the Vagus-Phrenic-Sympathetic Intersection, and is viewed through the lens of neuro-endocrinology. Stimulating this area is thought to modulate the solar plexus (celiac plexus) via the vagal pathway.
Within the complementary medicine framework: Point Zero represents the umbilicus (navel). It is a center of function: Qi (TCM), Prana (Ayurvedic Traditions), spirit-body connection (Native American Reflexology). As an energetic center of life force or gateway to the spirit-body connection, it is considered effective as a balancing point for homeostasis, connecting the body to its “original blueprint.”
Within the mental health framework: Point Zero is a cornerstone of the Battlefield Acupuncture (BFA) protocol, which is frequently used in Veterans Affairs (VA) hospitals to treat PTSD and chronic pain.
The neural target known as “Point Zero” sits in the notch of the cartilage at helical root.
Within the biomedical framework: Point Zero is considered to be the Vagus-Phrenic-Sympathetic Intersection, and is viewed through the lens of neuro-endocrinology. Stimulating this area is thought to modulate the solar plexus (celiac plexus) via the vagal pathway.
Within the complementary medicine framework: Point Zero represents the umbilicus (navel). It is a center of function: Qi (TCM), Prana (Ayurvedic Traditions), spirit-body connection (Native American Reflexology). As an energetic center of life force or gateway to the spirit-body connection, it is considered effective as a balancing point for homeostasis, connecting the body to its “original blueprint.”
Within the mental health framework: Point Zero is a cornerstone of the Battlefield Acupuncture (BFA) protocol, which is frequently used in Veterans Affairs (VA) hospitals to treat PTSD and chronic pain.
2. Ascending Helix
The portion of the helix ascending from the helical root to the superior apex of the helix.
3. Helical Apex
The superior aspect of the helix (e.g. the highest/uppermost point of the helical rim).
Within biomedical framework: In neuroanatomical terms, the Trigeminal Nerve and Cervical Plexus (C2-C3) innervate the helix and its apex. Stimulating these is seen to modulate pain signals in the brainstem, and is considered for neurological relief related to tension headaches and nerve irritation.
In complementary medicine framework: The auricular apex, Erjian (TCM), is considered for systemic effects, particularly for reducing high blood pressure (hypertension) and calming “fire” in the body. It corresponds to the body acupuncture point BL-40. The microsystem view includes it as an endocrine related target. Following the work of Nogier/Bahr, it is identified as an allergy/histamine point for treating inflammatory conditions like hay fever, asthma, and skin rashes, and also doubles as a focus indicator point (Type 1/Histmaine Type).
Mental health framework: While the National Acupuncture Detoxification Association (NADA) protocol primarily uses five other points, the ear apex is applied as an adjunct point for emotional stability and reduction of the physical intensity of withdrawal symptoms. Biomedical research related to mental health disorders has shown potential using the helical apex to modulate cortical excitability, potentially aiding in insomnia and neurogenic headaches.
Within biomedical framework: In neuroanatomical terms, the Trigeminal Nerve and Cervical Plexus (C2-C3) innervate the helix and its apex. Stimulating these is seen to modulate pain signals in the brainstem, and is considered for neurological relief related to tension headaches and nerve irritation.
In complementary medicine framework: The auricular apex, Erjian (TCM), is considered for systemic effects, particularly for reducing high blood pressure (hypertension) and calming “fire” in the body. It corresponds to the body acupuncture point BL-40. The microsystem view includes it as an endocrine related target. Following the work of Nogier/Bahr, it is identified as an allergy/histamine point for treating inflammatory conditions like hay fever, asthma, and skin rashes, and also doubles as a focus indicator point (Type 1/Histmaine Type).
Mental health framework: While the National Acupuncture Detoxification Association (NADA) protocol primarily uses five other points, the ear apex is applied as an adjunct point for emotional stability and reduction of the physical intensity of withdrawal symptoms. Biomedical research related to mental health disorders has shown potential using the helical apex to modulate cortical excitability, potentially aiding in insomnia and neurogenic headaches.
4. Darwin’s Tubercle
The cartilaginous protuberance (small and painless) located on the posterior-superior helix, near the helical apex. In terms of reflex zones, Darwin’s Tubercle represents the reflex zone of the caudal end of the spinal cord.
5. Descending Helix
The portion of the helix that extends inferiorly from the helical apex (or Darwin’s tubercle) toward the lobule (ear lobe).
6. Tail of Helix
The termination of the helical rim and its walls (at the end of the descending helix), where the helix meets the posterior-superior border of the lobule (ear lobe).
Within biomedical framework: The tail of the helix is almost exclusively innervated by the
Within biomedical framework: The tail of the helix is almost exclusively innervated by the
Greater Auricular Nerve (GAN), originating from the C2 and C3 spinal nerves of the cervical plexus, the GAN provides the primary sensory supply to the tail of the helix, the antitragus, and the lobule. The posterior auricular nerve, a branch of the facial nerve (CN VII), supplies the intrinsic muscles in this region, such as the antitragicus muscle, which connects the antitragus to the tail of the helix. This area has vascular-neural synergy; the posterior auricular artery runs alongside these nerves to provide blood supply necessary for neural health in the lower auricle.
Within complementary medicine framework: The microsystem view (especially based in the work of Nogier/Bahr), places several points at the end of the scapha where the helical groove merges into the lobule. These include anatomical points, such as those for temporomandibular joint/TMJ, palatine tonsils, molars of the jaw, parotid gland, lateral pterygoid muscle; as well as functional points, such those related to depression, magnesium.
Within complementary medicine framework: The microsystem view (especially based in the work of Nogier/Bahr), places several points at the end of the scapha where the helical groove merges into the lobule. These include anatomical points, such as those for temporomandibular joint/TMJ, palatine tonsils, molars of the jaw, parotid gland, lateral pterygoid muscle; as well as functional points, such those related to depression, magnesium.
7. Helical Wall
The inner aspect of the helix, forming the lateral boundary of the scapha, arising from its floor.
Within biomedical framework: For neuromodulation, the helical wall (the rim and the groove just inside it) is primarily targeted for its connection to the Cervical Plexus and the Trigeminal Nerve.
Within complementary medicine framework: An important target along the inner groove of the helical wall, at the level of auricular points T1 to L2, are the preganglionic sympathetic nerves, also known as the nuclei of origin of the spinal cord.
Within biomedical framework: For neuromodulation, the helical wall (the rim and the groove just inside it) is primarily targeted for its connection to the Cervical Plexus and the Trigeminal Nerve.
Within complementary medicine framework: An important target along the inner groove of the helical wall, at the level of auricular points T1 to L2, are the preganglionic sympathetic nerves, also known as the nuclei of origin of the spinal cord.
Helix (areas 1-7)
The cartilaginous rim forming the outer boundary of the auricle, extending from the root anteriorly to the tail above the lobule.
8. Scapha
The scapha is the portion between the antihelix (including the area superior to the antihelical crura) and the helical wall.
9. Triangular Fossa
The triangular depression (fossa) between the inferior and superior antihelical crura — with the raised tip of the triangle within the bifurcation (fork) of the antihelical crura, and the depressed base of the triangle along the helical wall.
10. Inferior Antihelical Crus
Ridge along the inferior side of the triangular fossa. In terms of reflex zones, this is ridge along which points for the lower thoracic spine, lumbar spine, and sacral spine, and cocyxx (tailbone) sit.
11. Superior Antihelical Crus
The ridge of the antihelix that extends superiorly from the antihelical bifurcation (fork), lying above the triangular fossa.
12. ANTIHELIX (areas 10-12)
The prominent Y-shaped ridge of the auricle that lies medial to the scapha and lateral to the concha, bifurcating superiorly into the superior and inferior antihelical crura. The reflex zone of the vertebral column projects upside down along the entire ridge edge that faces the concha.
13. Antitragus
The small cartilaginous projection opposite the tragus (and similar in size and shape to the tragus), superior to the lobule, forming the posterior boundary of the intertragic notch.
14. Lobule
The ear lobe is the inferior, non-cartilaginous portion of the auricle, composed mainly of fatty tissue and skin.
15. Intertragic Notch
The notch located between the tragus and antitragus. The reflex zones of several important hormone points projected along the ridge of the notch.
16. Tragus
The tragus is the cartilaginous protrusion located immediately in front of the external auditory canal. It is separated from the helix (the upper rim) by the anterior incisure and separated from the antitragus (the bump above the lobe) by the intertragic notch. In reflexology, it serves as a dense zone for points regulating autonomic functions and emotional states.
17. Supratragic Notch
Accordion Description
18. Ear Canal/External Acoustic Meatus
The external acoustic meatus (EAM) is the passage in the temporal bone extending from the auricle to the tympanic membrane, separating the outer and middle ear. IMPORTANT: No needles, ear seeds, or other mechanical instruments for stimulation should be applied in the ear canal.
Concha (areaS 20-21)
The auricular concha is the deepest part of the outer ear and the “floor” of the auricle, bounded primarily by the antihelical wall. It is divided by the crus of the helix into two parts: Cymba Conchae, the narrow, superior (upper) portion; and Cavum Conchae, the larger, inferior (lower) portion that leads directly into the ear canal.
Within biomedical framework: In neuromodulation, the concha is the primary anatomical target for transcutaneous auricular vagus nerve stimulation (taVNS) because it is the only part of the body's surface reached by the auricular branch of the vagus nerve (ABVN).
Within complementary medicine framework: From microsystem perspective, the concha represents the reflex zones for most internal organs.
Within biomedical framework: In neuromodulation, the concha is the primary anatomical target for transcutaneous auricular vagus nerve stimulation (taVNS) because it is the only part of the body's surface reached by the auricular branch of the vagus nerve (ABVN).
Within complementary medicine framework: From microsystem perspective, the concha represents the reflex zones for most internal organs.
19. Antihelical Wall
The antihelical wall is the vertical or sloping portion of the antihelix that forms a structural boundary between the conchal bowl and the outer ridges of the ear.
20. Cavum Concha/Inferior Concha
The lower portion of the auricular concha, inferior to the crus of the helix, that leads to the ear canal.
21. Cymba Concha/Superior Concha
The upper portion of the auricular concha, situated superior to the crus of the helix. It extends to the area where the helix overlaps the antihelix.
22. Crus of the Helix
The hard cartilaginous ridge that extends into the concha, dividing it into the cymba conchae (superior) and the cavum conchae (inferior). It is the ridge that brings us back to point zero at the helical root.
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