Muscles of the cranium, neck, and face Flashcards
This very large muscle, covering the top sides of the skull is composed of two broad bellies, connected by a large aponeurosis, called the Galea Aponeurotica
What is the occipitofrontalis muscle a.k.a. the epicranius muscle
The function of this muscle is that the occipital belly draws the scalp backwards and the frontal belly raises the skin over the nose and eyebrows. With this muscle one can raise one or both eyebrows.
What is the occipitofrontalis a.k.a. epicranius muscle.
The origin of this muscle is the superior line of the occipital bone and the mastoid portion of the temporal bone. Its marking is the transverse frontal sulci.
 What is the origin of the occipitofrontalis muscle aka epicranius muscle?
This is the largest organ of the body, which is only a few millimeters thick and is a barrier which protects the body from water, chemicals, disease, UV light and physical damage.
What is the skin?
This broad radiating muscle is shaped like a fan with the origin being the temporal fossa. It is the strongest of all the chewing muscles; retracts the lower jaw and brings the teeth together.
What’s is the Temporalis muscle?
This is the strongest of all the chewing muscles, retracts the lower jaw, and brings the teeth together
What is the function of the temporal muscle?
This muscle of the neck is consistent of two broad flat, superficial muscles, which arise from the fascia covering large muscles of the collarbone, ribs and shoulder
What is the platysma muscle?
The function of this muscle is to lower the angle of the mouth jaw upon contraction, and it’s marking. Is the platysma sulci more commonly known as a double chin.
What is the platysma muscle?
With this muscle of the neck has two bellies, which are just below the body of the mandible it’s markings are chords of the neck caused by the anterior belly
What is the digasticus muscle?
The muscle in red is called what
What’s is digastricus muscle
This sphincter muscle is known to a circle the mouth. Its origin, begins at the base of the nose, and extends down to the lower jaw and laterally to both cheeks.
What is the orbicularis oris?
The function of this muscle is to open and close the mouth and move the lips press them together and move them forward
What’s is the function of the orbicularis Oris?
The markings of this muscle are the labial sulci (known commonly as lip wrinkles) and philtrum.
What are the orbicularis Oris
This three sided muscle originates on the oblique line of the mandible and inserts at the angle of the mouth. Its marking contributes to the prominence of the angulus Oris eminence.
What is the Depressor Anguli Oris muscle a.k.a. Triangularis for Depressor Anguli Oris.
This quadrilateral muscle arises from the oblique line of the mandible and moves upward to the skin of the lower lip by the location of the labiomental sulcus.
What is the depressors labii inferioris a.k.a. quadratus
The function of this muscle, when contracted, moves, the lower lip downward, and to the side: it’s marking is the angulus oris sulcus
What is the depressor labii inferioris a.k.a. quadratus
Located on the prominence of the mental eminence between the two depressors- Labii inferioris muscle. Its origin is the incisive fossa, and it inserts into the skin of the chin.
What is the mentalis muscle?
It’s function is to raise and protrude the lower lip. The markings are dimples on the chin.
What is the mentalis muscle?
This four sided muscle is superior to the upper lip. It’s origin begins at the lower margin of the eye socket and runs downward to the upper lip.
What is the quadratus labii superiors?
The meaning of this muscle is to raise upper lip, along side, nose, a.k.a. common elevator. It is long, narrow strip, running alongside the nose, and it raises the upper lip and wings of the nose.
What is the Levator labii superiors alaeque nasi.
This muscle is the immediate head that lies lateral to the “common elevator” and its function raises the upper lip.
What is the Levator Labii superioris?
The lateral head of this muscle begins at the interior part of the cheekbone, and runs obliquely downward medially to the angle of the mouth. It is the lateral most head of the quadratus labii superioris muscles, and its function raises the upper lip at an angle of the mouth.
What is the Zygomaticus Minor?
Located lateral to the quadratus labii superioris, this muscle descends obliquely from the posterior portion of the zygomatic bone to the angle of the mouth. Its function draws The angle of the mouth, posteriorly and superiorly, and the markings are the angulus oris eminence, nasal Labial fold and the nasal sulcus.
What is the zygomaticus major a.k.a. the laughing muscle
Located in the region of the canine tooth, this muscle runs from the canine tooth to the angle of the mouth. Its function elevates the angle of the mouth and markings include angulus oris eminence, nasolabial fold, nasolabia sulcus, and nasal sulcus.
What is levator anguli Oris?
This thin, quadrilateral muscle is in the soft areas of the cheek. It’s the principal muscle of the cheek and forms of lateral walls of the mouth. Its function is compressing the cheek and markings are angular oris eminence, bucco-facial sulcus a.k.a. dimples on the face.
What is Buccinator a.k.a. Trumpeters muscles.
This narrow superficial muscle, runs horizontally across the cheek to the angle of the mouth. Its function retract the angle of the mouth; an action, which is antagonistic to the Buccinator muscle
What is the Risorius muscle?
This muscle located on each side of the face, originates on the anterior 2/3 of a zygomatic arch, extends downward posterior to the angle of the jaw. It’s function is chewing (raises the lower jaw) and it’s markings are bucco-facial sulcus; Mandibular sulcus, (dimples on the face)
What is the masseter muscle?
This narrow, tendinous muscle located deep in the eye socket at a small wing of the sphenoid bone. It’s in a wide aponeurosis , (a sheet of pearly, white fiber, tissues, that take the place of a tendon in flat muscle, having a wide area of attachment.)
What is the Levator palpebrae superioris?
This long, thin muscle extends vertically from the nasal bone up to the forehead. It’s marking is transverse interciliary sulci.
What is the procerus muscle?
Located at the medial end of the eyebrows + originating at the root of the nose, this muscle extends laterally and superiorly to the middle of the supra orbital margin. Its function draws the eyebrows mediately and inferiorly and the markings are the vertical interciliary sulci.
What is the corrugator a.k.a. frowning muscle
These two thin broad sphincter muscles, surround both eyelids and are partially spread over the temple and upper cheek. Its function is to close the eyelid gently + winking of the eye. it’s marking/s are optic facial sulci, a.k.a. crows feet, the interciliary sulci and superior and interior palpebral sulci. .
What is the Orbicularis Oculi?
These Two Relatively thick muscles pass obliquely across the side of the neck. It’s function is to rotate to head the right muscle contracts to move the head to the right the left muscle moves the head to the left. This muscle moves the head backwards and forwards and has no markings, but the widest part of the neck is measured from one end to the other end of this muscle.
What is the sternocleidomastoideus muscle?
This is known to be the deepest layer of the skin which is characterized as being tough flexible and elastic. It contains nervous tissue, blood vessels, and oil glands.
What is the derma?
