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Platysma muscle information


Platysma muscle
The platysma is visible, with skin removed.
The muscles of the face, platysma visible at bottom right.
Details
OriginSubcutaneous tissue of infraclavicular and supraclavicular regions
InsertionBase of mandible; skin of cheek and lower lip; angle of mouth; orbicularis oris
ArteryBranches of the submental artery and suprascapular artery
NerveCervical branch of the facial nerve
ActionsDraws the corners of the mouth inferiorly and widens it (as in expressions of sadness and fright). Also draws the skin of the neck superiorly when teeth are clenched
AntagonistMasseter muscle, temporalis muscle
Identifiers
Latinplatysma
TA98A04.2.01.001
TA22147
FMA45738
Anatomical terms of muscle
[edit on Wikidata]

The platysma muscle is a superficial muscle of the human neck that overlaps the sternocleidomastoid. It covers the anterior surface of the neck superficially. When it contracts, it produces a slight wrinkling of the neck, and a "bowstring" effect on either side of the neck.

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Platysma muscle

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The platysma muscle is a superficial muscle of the human neck that overlaps the sternocleidomastoid. It covers the anterior surface of the neck superficially...

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Submental space

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It is a potential space located between the mylohyoid muscle superiorly, the platysma muscle inferiorly, under the chin in the midline. The space coincides...

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Common carotid artery

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the integument, superficial fascia, the platysma muscle, deep cervical fascia, the sternocleidomastoid muscle, the sternohyoid, sternothyroid, and the...

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Masseter muscle

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facilitate chewing of plant matter. The most obvious muscle of mastication is the masseter muscle, since it is the most superficial and one of the strongest...

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Occipital triangle

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cutaneous nerves of cervical plexus and the external jugular vein and platysma muscle. A chain of lymph glands is also found running along the posterior...

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Subclavian artery

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superficial fascia, the platysma muscle, the deep cervical fascia, the sternocleidomastoid muscle, and the scalenus anterior muscle. On the right side of...

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Cervical branch of the facial nerve

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the neck. It is a branch of the facial nerve (VII). It supplies the platysma muscle, among other functions. The cervical branch of the facial nerve is...

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Rhytidectomy

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the deep anatomical structures, notably the platysma muscle, cheek fat and the orbicularis oculi muscle. These lead up to three landmarks namely, an...

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Buccal space

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side. The buccal space is superficial to the buccinator muscle and deep to the platysma muscle and the skin. The buccal space is part of the subcutaneous...

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Temporalis muscle

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temporalis muscle, also known as the temporal muscle, is one of the muscles of mastication (chewing). It is a broad, fan-shaped convergent muscle on each...

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Scalene muscles

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posteriorly by the trapezius, and anteriorly by the platysma muscle. The anterior and middle scalene muscles can be involved in certain forms of thoracic outlet...

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Superficial muscular aponeurotic system

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zygomatic arch) and galea.[citation needed] It becomes continuous with the platysma muscle inferiorly (inferior to the inferior border of the mandible), and indistinct...

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Panniculus carnosus

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striated muscle deep to the panniculus adiposus. In humans, the platysma muscle of the neck, palmaris brevis in the hand, and the dartos muscle in the scrotum...

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Depressor labii inferioris muscle

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the orbicularis oris muscle around 2 cm wide. At its origin, depressor labii is continuous with the fibers of the platysma muscle. Some yellow fat is intermingled...

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Depressor anguli oris muscle

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origin, it is continuous with the platysma muscle, and at its insertion with the orbicularis oris muscle and risorius muscle. Some of its fibers are directly...

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Supraclavicular nerves

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the platysma muscle and the deep cervical fascia.[citation needed] Near the clavicle, the supraclavicular nerves perforate the fascia and the platysma muscle...

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List of skeletal muscles of the human body

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This is a table of skeletal muscles of the human anatomy, with muscle counts and other information. Skeletal muscle maps Anterior view Posterior view...

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Great auricular nerve

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external jugular vein upon that sternocleidomastoid muscle beneath the platysma muscle to the parotid gland. Upon reaching the parotid gland, it divides into...

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Gunshot wound

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penetrating neck injury (PNI), classified by violation of the platysma muscle. If the platysma is intact, the wound is considered superficial and only requires...

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External carotid artery

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external carotid artery is covered by the skin, superficial fascia, platysma muscle, deep fascia, and anterior margin of the sternocleidomastoid; it is...

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Facial muscles

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muscle Mentalis The platysma is supplied by the facial nerve. Although it is mostly in the neck and can be grouped with the neck muscles by location, it can...

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Parathyroidectomy

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abbreviated Kocher incision is made and the platysma muscle is dissected horizontally. The strap muscles are released off of the thyroid gland. Then the...

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Risorius

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masseteric fascia, the fascia enveloping the pars modiolaris of the platysma muscle, fascia overlying the mastoid part of temporal bone, and/or the zygomatic...

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Carotid triangle

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digastric muscle. The roof is formed by: Integument, Superficial fascia, Platysma, Deep fascia. The floor is formed by (parts of) the: Thyrohyoid membrane...

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Parotid plexus

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forward forming a series of arches over the suprahyoid region to the platysma muscle. Snell, Richard S. (2007). Clinical anatomy by systems. Hagerstwon...

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Submandibular space

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each submandibular space are: the mylohyoid muscle superiorly, the skin, superficial fascia, platysma muscle and superficial layer of the deep cervical...

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Index of anatomy articles

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piriform sinus pisiform pituitary gland placenta plantar aponeurosis platysma muscle pleura plexus plica semilunaris pollex pollicis pollux pons pontine...

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