Where does the orbicularis oculi muscle insertion?
lateral palpebral raphe
| Orbicularis oculi muscle | |
|---|---|
| Origin | frontal bone; medial palpebral ligament; lacrimal bone |
| Insertion | lateral palpebral raphe |
| Artery | ophthalmic, zygomatico-orbital, angular |
| Nerve | Temporal (orbital, palpebral) & zygomatic (lacrimal) branches of facial nerve |
What is the insertion point of the orbicularis oris?
Orbicularis oris muscle
| Origin | Medial aspects of maxilla and mandible, perioral skin and muscles, modiolus |
|---|---|
| Insertion | Skin and mucous membrane of lips |
| Action | Closes mouth, compresses and protrudes lips |
| Innervation | Buccal branch of facial nerve (CN VII) |
What is the insertion of the orbicularis oculi muscle quizlet?
Activity associated with that of orbicularis oculi. Origin: arch of frontal bone above nasal bone. Insertion: skin of eyebrow. Action: draws eyebrow medially, inferiorly, wrinkles skin of forehead vertically.
Which muscle inserts into the orbicularis oris?
The levator labii superioris muscle originates beneath the orbicularis oculi muscle and inserts over and intermingles with the orbicularis oris muscle into the lower half of the philtral column. These muscles assist the orbicularis oris but may be transected without compromising oral competence.
Where does the orbicularis oculi attach laterally?
The deep or posterior head of the pretarsal orbicularis oculi muscle is also known as Horner’s muscle. Laterally, the muscle attaches to the lateral canthal tendon. The superior and inferior pretarsal orbicularis oculi muscles are overlain the respective upper and lower eyelid tarsi.
What is the origin and insertion of the frontalis muscle?
The frontalis muscle (from Latin ‘frontal muscle’) is a muscle which covers parts of the forehead of the skull….Frontalis muscle.
| Frontalis | |
|---|---|
| Origin | Galea aponeurotica |
| Insertion | Orbicularis oculi muscle |
| Artery | supraorbital and supratrochlear arteries |
| Nerve | Facial nerve Temporal branch |
What is the orbicularis oculi muscle?
The orbicularis oculi muscle closes the eyelids and assists in pumping the tears from the eye into the nasolacrimal duct system. The orbital section of the orbicularis oculi is more involved in the voluntary closure of the eyelid, such as with winking and forced squeezing.
What is the origin of the orbicularis?
The orbicularis oris is a muscle located around the lips of the mouth. This muscle originates from the mid-line of the mandible, which is the bone of the lower jaw, and the maxilla, which is the bone of the upper jaw.
Which are attachments of the orbicularis oculi?
The preseptal orbicularis oculi muscle divides medially into a deep head and a superficial head. The deep head of the muscle attaches to the fascia around the lacrimal sac as well as the posterior lacrimal crest, while the superficial head of the muscle attaches to the anterior limb of the medial canthal ligament.
What is the origin insertion and action of muscles?
Conventionally, a muscle origin describes the attachment of a muscle on the more stable bone. The insertion then, is the attachment of a muscle on the more moveable bone. The action of the muscle describes what happens when the more mobile bone is brought toward the more stable bone during a muscular contraction.
What is the Elvis 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 action of orbicularis oculi?
The orbicularis oculi muscle is a thin muscle that surrounds each of the eyes. This muscle functions to close the eye involuntarily (such as when you blink), close the eye voluntarily (such as when you close your eyes to go to sleep), and to help cause tears to flow out into the eyes.
Which are attachments of the orbicularis oculi quizlet?
The orbicularis is the muscle that attaches at the modiolus (angle) of the mouth and inserts in the tissue of the lips.
What is the origin insertion and action of temporalis?
Temporal muscle
| Origin | Temporal fossa (up to inferior temporal line), Temporal fascia |
|---|---|
| Insertion | Apex and medial surface of coronoid process of mandible |
| Action | Anterior fibres: Elevates mandible Posterior part: Retracts mandible |
| Innervation | Deep temporal branches (of mandibular nerve (CN V3)) |
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 is the tailor’s muscle?
Sartorius
Sartorius derives from the Latin word sartor, meaning tailor, and it is occasionally referred to as the tailor’s muscle. This name was chosen in reference to the cross-legged position in which tailors once sat.
What is the longest name for a muscle?
The levator labii superioris alaeque nasi muscle is, translated from Latin, the “lifter of both the upper lip and of the wing of the nose”. It has the longest name of any muscle in an animal.