Face and Neck Muscles
Scalene
3 muscles in the neck. Found at the distal end of the sternocleidomastoid in the clavicle region.
Sternocleidomastoid
A huge muscle extending from the mastoid process of the skull and branches to connect to the clavicle and the sternum.
Between the trapezius and the sternocleidomastoid, which is the most anterior muscle?
Anterior scalene
Epicranial aponeurosis
Connects the occipitalis and frontalis (dense connective tissue)
Nasalis
Covers the bridge of the nose
Name the vertical muscle that extends from the corner of the lip to the lower edge of the mandible.
Depressor anguli oris
On the chin, what is the most lateral muscle?
Depressor anguli oris
What muscle is directly lateral to the mentis?
Depressor labii inferioris
What is the term "orbicularis" in reference to?
Encircles
Orbicularis oris
Encircles the mouth
Orbicularis oculi
Encircles the orbit of the eye
Zygomaticus major
Extends from orbicularis oris to the zygomatic bone. It is inferior to the zygomaticus minor.
Zygomaticus minor
Extends from orbicularis oris to the zygomatic bone. Superior to zygomaticus major.
Risorius
Extends from the corner of the orbicularis oris to fascia tissue on the ramus of the mandible.
Levator labii superioris
Extends from the upper lip to the inferior edge of the orbit of the eye
Mylohyoid
Forms the floor of the mandible, extending from the left edge of the mandible to the right edge of the mandible
Sternohyoid
Immediately deep to platysma. Vertical muscle, one on each side of the thyroid gland.
Levator scapulae
Immediately posterior and superior to the last scalene muscle
Mentalis
Is in the center of the mandible on the mental protuberance
Depressor anguli oris
Lateral to the depressor labii inferioris
Depressor labii inferioris
Lateral to the mentalis
Omohyoid
Lateral to the sternohyoid
Identify the muscle that extends from the medial corner of the eye to the lateral edge of the upper lip.
Levator labii superioris alaeque nasi
Name the muscle that extends from the medial corner of the eye and passes through the ala of the nose.
Levator labii superioris alaeque nasi
Buccinator
Lies deep and slightly anterior to the masseter (in the cheek)
Frontalis
Lies on the frontal bone
Occipitalis
Lies on the occipital bone
Temporalis
Lies on the temporal bone
Trapezius
Mainly an upper back muscle. This muscle extends over the shoulder to the anterior side connecting to the clavicle.
Identify the major muscle involved in closing the jaw that is located on the lateral side of the face.
Masseter
Identify the muscle located on the ramus.
Masseter
The parotid duct from the parotid gland lies on the surface of what muscle?
Masseter
The risorius lies on the surface of what muscle?
Masseter
Identify the muscle that lies on the mental protuberance.
Mentalis
Name the muscle that is located in the center of the mentis region.
Mentalis
What is the name of the muscle that covers the superficial area of the mental protuberance?
Mentalis
Name the muscle that makes up the floor of the mandible
Mylohyoid
Which muscle is deep to the digastric muscle?
Mylohyoid
Platysma
Origin: superior thorax Insertion: mandible and skin of the cheek Action: Tenses skin of neck, depresses mandible (works against the masseter)
Levator labii superioris alaeque nasi
Originates at the medial corner of the orbit of the eye. It inserts in the area of the ala of the nose and the upper lip.
In order to see any muscles of the anterior neck region, you have to first remove what muscle?
Platysma
Name the most superficial muscle that completely covers the anterior neck.
Platysma
Identify the muscle that extends pretty much straight posterior from the corner of the lips on the lateral side of the face.
Risorius
Name the muscle that inserts on the clavicle and the manubrium of the sternum.
Sternocleidomastoid
Name the most vertical muscle on the anterior side of the neck that lies deep to the platysma.
Sternohyoid
The sternocleidomastoid attaches to three bones/bony structures - name them.
Sternum, clavicle, mastoid process
Masseter
Superficial to the ramus.
Splenius capitis
Superior to levator scapulae; most superior of neck muscles
Platysma
The most superficial muscle of the neck. Extends from the clavicle to the mandible.
What is the most posterior neck muscle?
Trapezius
T/F ‐ The digastric and mylohyoid muscles are located under the mandible.
True
Digastric
Two tubular shaped muscles lying on the inferior surface of the mylohyoid
What is the origin of the masseter muscle?
Zygomatic arch
Which muscle is superior and attaches to the zygomatic bone?
Zygomaticus minor
Which zygomaticus muscle is the most superior?
Zygomaticus minor
Platysma
broad
Orbicularis
encircles
Masseter
mastication
