Platysma
Anatomical Info
-
Position:
Anteroir -
Region:
Neck -
Plane:
Frontal
Muscle Characteristics:
-
Movement:
Flexion -
Muscle Shape:
Parallel
Nerve:
Nerve
System
Spinal Plexus
Division
Trunk
Branch
Roots
Description
The platysma is a thin, broad muscle that is located in the neck and extends from the lower border of the mandible (jawbone) down to the clavicle (collarbone). It is a superficial muscle, meaning that it is located just under the skin and is not deeply buried within the neck tissue.
The platysma muscle has several important functions in the neck. It helps to move the lower jaw and lip, and is involved in facial expressions such as smiling and frowning. It also helps to tense the skin of the neck, which can create wrinkles and give the neck a firmer appearance.
The platysma muscle is innervated by the cervical branch of the facial nerve, which means that it is controlled by the facial nerve. It is a voluntary muscle, meaning that it can be controlled voluntarily by the person. However, it can also be influenced by emotions and other non-voluntary factors.
The platysma muscle is often visible when the neck is tensed or when a person makes certain facial expressions. It is also visible when the skin of the neck is loose or sagging, as it can create wrinkles or folds in the skin. In some cases, the platysma muscle may be surgically modified or altered to improve the appearance of the neck or to address certain medical conditions.
Targeted Muscle Exercises
Muscle Engaging Sports
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