Mandibular notch
Mandibular notch | |
---|---|
Details | |
Part of | mandible |
System | skeletal |
Identifiers | |
Latin | incisura mandibulae |
TA98 | A02.1.15.034 A02.1.15.008 |
TA2 | 871 |
FMA | 59481 |
Anatomical terms of bone |
The mandibular notch, also known as the sigmoid notch, is a groove in the ramus of the mandible. It is the gap between the coronoid process anteriorly and the condyloid process posteriorly.
Structure[]
The mandibular notch is a concave groove at the top of the ramus of the mandible. It is the gap between the coronoid process anteriorly and the condyloid process posteriorly.
Function[]
The mandibular notch allows for the passage of the masseteric nerve (a branch of the mandibular nerve (V3) division of the trigeminal nerve), the masseteric artery, and the .
Clinical significance[]
The mandibular notch may be palpated to locate the parotid duct,[1] the facial artery,[1] the facial vein,[1] and the medial pterygoid muscle.[2]
Other animals[]
The mandibular notch can be found in other mammals, such as dogs and cats.[1] There can be significant variation in its shape even within the same species.[3] Archaeological evidence shows that the mandibular notch is different in other hominidae, such as neanderthals, and may be asymmetrical.[4]
Additional images[]
References[]
This article incorporates text in the public domain from page 174 of the 20th edition of Gray's Anatomy (1918)
- ^ a b c d Gelatt, Kirk N. (2011). "6 - Surgery of nasolacrimal apparatus and tear systems". Veterinary Ophthalmic Surgery. Saunders. pp. 141–156. doi:10.1016/B978-0-7020-3429-9.00006-7. ISBN 978-0-7020-3429-9.
- ^ Bolton, Kerrie; Selvaratnam, Peter (2009). "23 - Myofascial trigger point treatment for headache and TMD". Headache, Orofacial Pain and Bruxism. Churchill Livingstone. pp. 301–320. doi:10.1016/B978-0-443-10310-0.00023-X. ISBN 978-0-443-10310-0.
- ^ Zelditch, Miriam Leah; Swiderski, Donald L.; Sheets, H. David (2012-01-01). "2 - Landmarks and Semilandmarks". Geometric Morphometrics for Biologists (2nd ed.). Academic Press. pp. 23–50. doi:10.1016/B978-0-12-386903-6.00002-2. ISBN 978-0-12-386903-6.
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: CS1 maint: date and year (link) - ^ Wood, B.; Boyle, E. (2017). "2 - Hominins: Context, Origins, and Taxic Diversity". On Human Nature: Biology, Psychology, Ethics, Politics, and Religion. Academic Press. pp. 17–44. doi:10.1016/B978-0-12-420190-3.00002-8. ISBN 978-0-12-420190-3.
External links[]
Wikimedia Commons has media related to Mandibular notch. |
- Anatomy image: skel/mandible2 at Human Anatomy Lecture (Biology 129), Pennsylvania State University
- Diagram at unc.edu
- Wikipedia articles incorporating text from the 20th edition of Gray's Anatomy (1918)
- Bones of the head and neck