| Inferior tympanic artery | |
|---|---|
 Superficial dissection of the right side of the neck, showing the
carotid and
subclavian arteries | |
| Details | |
| Precursor | aortic arch 2 |
| Source | Ascending pharyngeal artery |
| Identifiers | |
| Latin | arteria tympanica inferior |
| TA98 | A12.2.05.013 |
| TA2 | 4381 |
| FMA | 49506 |
| Anatomical terminology | |
The inferior tympanic artery is a small branch of the ascending pharyngeal artery which passes through the tympanic canaliculus alongside the tympanic branch of glossopharyngeal nerve (CN IX) to reach and provide arterial supply to the medial wall of the tympanic cavity [1] where it forms anastomoses with the other tympanic arteries.[ citation needed]
Clinical significance
In the case of a missing or underdeveloped cervical ICA, the Inferior tympanic artery can provide collateral ICA circulation by reversing flow of the caroticotympanic artery (embryologic hyoid artery). This can result in pulsatile tinnitus. The resulting aberrant carotid artery can mimic neoplasm on CT.[ citation needed]
References
This article incorporates text in the
public domain from
page 557 of the 20th edition of
Gray's Anatomy (1918)
-
^ Standring, Susan (2020).
Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. pp. 585–586.
ISBN
978-0-7020-7707-4.
OCLC
1201341621.
{{ cite book}}: CS1 maint: location missing publisher ( link)
 | This cardiovascular system article is a stub. You can help Wikipedia by expanding it. |
| Inferior tympanic artery | |
|---|---|
|
Superficial dissection of the right side of the neck, showing the
carotid and
subclavian arteries | |
| Details | |
| Precursor | aortic arch 2 |
| Source | Ascending pharyngeal artery |
| Identifiers | |
| Latin | arteria tympanica inferior |
| TA98 | A12.2.05.013 |
| TA2 | 4381 |
| FMA | 49506 |
| Anatomical terminology | |
The inferior tympanic artery is a small branch of the ascending pharyngeal artery which passes through the tympanic canaliculus alongside the tympanic branch of glossopharyngeal nerve (CN IX) to reach and provide arterial supply to the medial wall of the tympanic cavity [1] where it forms anastomoses with the other tympanic arteries.[ citation needed]
Clinical significance
In the case of a missing or underdeveloped cervical ICA, the Inferior tympanic artery can provide collateral ICA circulation by reversing flow of the caroticotympanic artery (embryologic hyoid artery). This can result in pulsatile tinnitus. The resulting aberrant carotid artery can mimic neoplasm on CT.[ citation needed]
References
This article incorporates text in the
public domain from
page 557 of the 20th edition of
Gray's Anatomy (1918)
-
^ Standring, Susan (2020).
Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. pp. 585–586.
ISBN
978-0-7020-7707-4.
OCLC
1201341621.
{{ cite book}}: CS1 maint: location missing publisher ( link)
|
| This cardiovascular system article is a stub. You can help Wikipedia by expanding it. |