risorius muscle
Musculus risorius
In 1 atlas
Definition
Facial muscle that attaches to the fascia of the masseter muscle and the facia of the skin in the region of the corner (angle) of the mouth. Even in species in which this muscle is present, it is highly variable. A true risorius muscle may only be present in Hominins (humans and great apes). See Diogo 2008; Diogo et al., 2009; Burrows et al.., 2011., also DuBrul, 1980.
Source: UBERON · Licence: CC-BY-3.0
Definition from the Uberon multi-species anatomy ontology (Mungall CJ et al., Genome Biology 2012, 13:R5), https://obophenotype.github.io/uberon/, licensed under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/).
Relations
- Innervation
- facial nerve (VII)
Sub-structures
Neighbouring structures
Practice questions
Read more
Identifiers
- TA2
- 2078
- TA98
- A04.1.03.028
- FMA
- 46838
- UBERON
- 0008598
- Wikidata
- Q841536
