Superficial Face Flashcards
How many pairs of spinal nerves are there?
31
12 pairs of CN- Most in head only, a few in neck and Vagus travels to _____ and _____.
Thorax and abdomen
Special Senses vision, hearing, equilibrium, smell taste is exclusive only to _____ nerves.
Cranial nerves
- Facial features provides _____
- Allows _____
- The shape is determined by the underlying _____
- Changes with age- loss of ___, forms ___
- Identity
- Communication
- Bones
- Fat, wrinkles
What are the openings of facial features? These same areas are continuous with the mucous membrane.
Nostrils, palpebral fissure, oral fissure.
Muscles of facial expression (superficial) are within subcutaneous tissue of _____ and _____ scalp, face and neck.
Anterior and posterior
_____ and _____ around each orifice.
Sphincter and dilators
What is innervation to all the muscles of facial expression?
CN VII Facial
Muscles of mastication is innervated by?
Mandibular Division (V3) of CN V Trigeminal
Muscles of facial expression are developed from ___ branchial arch which is also called _____.
2nd; branchiomotor
The numerous muscles of facial expression originate from bones of the facial skeleton and insert onto the ___ of the face.
skin
Muscles of facial expression show much variation in terms of their _____ and their overall _____.
relation; development
These muscles atrophy with age, therefore age has a significant effect on how these muscles will _____.
appear
Muscles of facial expression form a _____ covering the facial skeleton
blanket
Muscles of facial expression act together in groups because their fibers _____, they work together to alter the size or shape of the face.
Interlace
Many of the Muscles of facial expression insert together at a central point at the corner of the mouth known as the _____.
Modiolus
What are the 3 parts to oribicularis oculi m. and functions?
- Orbital portion: Close the eye tightly
- Palpebral portion: Close eyes slightly, blinking.
- Lacrimal portion: To squeeze the lacrimal duct
What is the function of orbicularis oris m.?
Close the mouth and pucker/purse the lips (Kissing muscles)
Which muscle: • originates inferior to the eye (maxilla) • inserts in the upper lip • functions to raise the upper lip • Partially overlies the levator anguli oris
Levator Labii Superioris
Which muscle: • located just lateral to the nose • inserting into the upper lip • functions to elevate the upper lip and opens (flares) the nostril
Levator Labii Superioris Alaeque- Nasi thin muscle
Levator Labii Superioris and Levator Labii Superioris Alaeque- Nasi muscles are the _____ of the upper lip.
Elevators
Which muscle: • originates below the eye (canine fossa of maxilla). • inserts into the angle of the mouth (modiolus). • functions to elevate the corner of the mouth. • deep to Zygomaticus muscles.
Levator anguli oris
Which muscle:
• originates from the inferior aspect of the body of the mandible.
• Inserts into the angle of the mouth (modiolus).
• functions to move the
angle of the mouth
inferiorly (frowning).
• assisted by posterior fibers of the Platysma.
Depressor anguli oris
Which muscle:
•originates from themandible, lateral to the mentalis muscle.
•Inserts into the lower lip (merging with orbicularis oris muscle).
• functions to depress the
lower lip.
• also draws the lower lip
slightly laterally.
Depressor labii inferioris
Which muscle: • originates from the mental protuberance of the mandible. • Inserts into the skin of the chin (mentolabial sulcus). • functions to elevate and protrude the lower lip and elevates the skin of the chin (pouting).
Mentalis
Depressor labii inferioris and Mentalis both are the _____ of the lower lip.
Depressors
What is the O., I. , and Action of Zygomaticus major muscle?
- originates from lateral aspect of zygomatic bone.
- inserts into the corner of the mouth (modiolus).
- functions to draw the corner of the mouth superiorlaterally (smile).
What is the O., I. , and Action of Zygomaticus minor muscle?
• originates from zygomatic bone (medial to zygomaticus major). • Inserts into the skin of the upper lip and the I orbicularis oris muscle. • functions to raise the upper lip (contempt). • Also functions to deepen the nasolabial sulcus (sadness).
Which muscle:
• originates from fascia
aponeurosis covering nasal bone and lateral nasal lateral nasal cartilage.
• inserts into the skin of the inferior forehead between the eyebrows.
• functions to depress medial end of eyebrows and wrinkle skin over dorsum of nose (dislike or disdain).
Procerus
Which muscle: • Originates from superior portion of canine ridge of maxilla. • Inserts in skin over nasal cartilages. • functions to draw the ala (sides) of nose medially towards the septum (close the nostril).
Nasalis (Compressor naris)
What is the O., I. , and Action of Risorius muscle?
• originates from Parotid
fascia and skin over buccal
area – extremely superficial.
• inserts into the corner of the mouth (modiolus).
• functions to widen the
orifice of the mouth (grinning or grimacing).
What muscle:
• Originates from mandible,
alveolar processes of maxilla and mandible, and the pterygomanidibular raphe.
• Inserts into the angle of the mouth (modiolus) and the orbicularis oris.
• functions to press the cheek against molars; resists distension (when blowing), and keeps the cheek taut (smiling).
• Deeper plane than other muscles of facial expression.
Buccinator
What muscle:
• originates from
subcutaneous tissue of infraclavicular and supraclavicular regions.
• inserts into the base of the mandible, skin of cheek and lower lip.
• functions to depress mandible and tense skin over neck (shaving).
Platysma
What muscle:
• Frontal: Originates from epicranial aponeurosis and inserts Fin skin of forehead and eyebrows. Functions to elevate brow and wrinkle skin of forehead
(surpris
• Occipital: originates from
superior nuchal line and inserts into epecranial aponeurosis. Functions to retract scalp; increase tension on frontalis belly.
Occipitofrontalis
What muscle: • originates from medial end of superciliary arch. • inserts into skin superior to middle of supraorbital margin and supercilliary arch. • functions to draw eyebrows medially and inferiorly (worry or concern).
Corrugator supercilii (“The look”)
