Muscles of mastication Flashcards
1
Q
What are the primary muscles of mastication?
A
- masseter
- lateral pterygoid
- medial pterygoid
- temporalis
2
Q
From which arch do the muscles of mastication arise from and when?
A
The muscles of mastication arise form the first pharyngeal arch,which later differentiates into the muscles of mastication in the 7th week of intra-uterine development
- Nerve supply to these muscles begins in the eighth week of intra-uterine development
3
Q
What is the maxillary artery and what is its significance to the muscles of mastication?
A
The maxillary artery provided blood supply to the muscles of mastication; it is a branch of the external carotid artery
4
Q
Which nerve(s) innervates the muscles of mastication?
A
The anterior trunk of the mandibular nerve innervates the muscles of mastication. This nerve is the third division of CN V (trigeminal nerve)
5
Q
What are the accessory muscles of mastication?
A
- bucchinator
- suprahyoid
- infrahyoid
