What is the origin of the levator labii superioris alaeque nasi?
| Levator labii superioris alaeque nasi muscle | |
|---|---|
| Origin | Nasal bone |
| Insertion | Nostril and upper lip |
| Nerve | Buccal branch of facial nerve |
| Actions | Dilates the nostril; elevates the upper lip and wing of the nose |
What is the placement of levator labii superioris alaeque nasi?
The levator labii superioris alaeque nasi muscle is attached to the upper frontal process of the maxilla and inserts into the skin of the lateral part of the nostril and upper lip. It has the longest name of any muscle in an animal.
Where is the insertion of the levator anguli oris?
Modiolus
Levator anguli oris is a paired strap-like muscle of the face, located above the angles of the lips….Levator anguli oris muscle.
| Origin | Canine fossa of maxilla |
|---|---|
| Insertion | Modiolus |
| Action | Elevates angle of mouth |
| Innervation | Zygomatic and buccal branches of facial nerve (CN VII) |
What’s a levator labii superioris alaeque nasi muscle?
The levator labii superioris alaeque nasi is a muscle whose primary purpose is to dilate the nostrils and elevate the upper lip. This action enables a ‘snarl’ facial expression, made famous by Elvis Presley and earning it the nickname ‘The Elvis Muscle. ‘
What is the origin and insertion of the Risorius?
If present, it is found in the superficial layer of the facial muscles on either side of the lips, overlying the buccinator muscle….Risorius muscle.
| Origin | Parotid fascia, Buccal skin, zygomatic bone (variable) |
|---|---|
| Insertion | Modiolus |
| Function | Extends angle of mouth laterally |
What does Alaeque mean?
Latin ala = wing (ala of nose), suffix -que = and, hence levator labii superioris alaeque nasi muscles = lifter of the upper lip and ala of nose.
What is the origin and insertion of the depressor Anguli Oris?
Depressor anguli oris is a paired triangular muscle that extends from the mental tubercle of mandible to the angle of the mouth….Depressor anguli oris muscle.
| Origin | Mental tubercle and oblique line of mandible (continuous with platysma muscle) |
|---|---|
| Insertion | Modiolus |
| Function | Depresses angle of mouth |
Where is the levator Palpebrae Superioris?
The levator palpebrae superioris muscle origin is the periosteum of the lesser wing of the sphenoid bone, superior to the optic foramen. The muscle travels anteriorly along the superior aspect of the orbit superior to the superior rectus muscle.
What Innervates levator labii superioris?
The levator labii superioris receives its blood supply from terminal branches of the facial artery and the infraorbital branch of the maxillary artery. The zygomatic branch of the facial nerve (cranial nerve VII) innervates the levator labii superioris.
What is the origin and insertion of the masseter muscle?
Origin and insertion This part originates from the entire length of the inferior border of the zygomatic arch, and inserts onto the superficial side of the ramus of mandible, superior to the insertion of the superficial part of the muscle.
What does labii mean in anatomy?
/ˈleɪ.bi.aɪ/ a Latin word meaning “of the labium” (= a lip or fold on the outside of the female sex organs), used in medical names and descriptions.
What do the levator labii superioris and levator anguli oris do?
The levator anguli oris muscle is involved in smiling. The levator anguli oris, also known as the triangularis labii superioris, is a muscle found in the mouth area of the face. This muscle is responsible for specific facial expressions, such as the ability to smile.