Zygomaticus Major Muscle

The zygomaticus major muscle is one of two zygomaticus muscles, the zygomaticus minor and zygomaticus major, which are two facial muscles that aid in articulation of the mouth, nose, and cheeks. The zygomaticus minor is a small bundle of muscle fibers lying in the area of the cheek. Together with two other muscle bundles, it forms the nasolabial furrow, from the side of the nose to the upper lip, which is deepened in expressions of sadness. The zygomaticus major is larger than the minor, but...

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Anatomy Terms

Clavicle
Clavicular Head of Sternocleidomastoid Muscle
Depressor Anguli Oris Muscle
Depressor Labii Inferioris Muscle
Eye
Frontal Belly of Epicranius Muscle (Frontalis Muscle)
Galea Aponeurotica
Hyoid Bone
Levator Labii Superioris Alaeque Nasi Muscle
Levator Labii Superioris Muscle
Levator Scapulae Muscle
Masseter Muscle
Medial Rectus Muscle
Mentalis Muscle
Muscles of the Eye
Muscles of the Tongue
Nasalis Muscle
Occipital Belly of Epicranius Muscle (Occipitalis Muscle)
Omohyoid Muscle
Orbicularis Oculi Muscle
Orbicularis Oris Muscle
Platysma Muscle
Risorius Muscle
Scalene Muscles
Scapula
Semispinalis Capitis Muscle
Skull
Spine
Splenius Capitis Muscle
Sternal Head of Sternocleidomastoid Muscle
Sternocleidomastoid Muscle
Sternohyoid Muscle
Sternum
Teeth
Temporalis Muscle
Trapezius Muscle
True Ribs
Zygomaticus Major Muscle
Zygomaticus Minor Muscle

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Full Zygomaticus Major Muscle Description

[Continued from above] . . . it also lies in the cheek area and extends down to the mouth. It draws the angle of the mouth upward and backward in laughing.