Intrinsic auricular muscles
Musculi auriculares interni
- Related terms: Auricular muscles
Definition
The intrinsic auricular muscles represent those group of muscles which are situated within the elastic cartilaginous framework of the auricle. These interconnect various auricular cartilaginous regions, but do NOT connect to any extra-auricular part of the body, such as the scalp or the skull.
The intrinsic auricular muscles could play a role in changing the shape of the auricle. These are different from the extrinsic auricular muscles, which pass from the scalp or the skull to the auricle and could play a role in changing the position of the auricle.
Both extrinsic and intrinsic auricular muscles receive their motor innervation from the facial (7th cranial) nerve.
References
Text written by Muhammad A. Javaid, MD, PhD © 2023 IMAIOS.
Drake, R.L., Vogl, A.W. and Mitchell, A.W.M. (2009). ‘Chapter 8: Head and Neck’ in Gray’s anatomy for Students. (2nd ed.) Philadelphia PA 19103-2899: Elsevier, pp. 903-903.
Szymanski, A. and Geiger, Z. Anatomy, Head and Neck, Ear. [Updated 2022 Jul 25]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470359/
