Depressor septi nasi muscle

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Depressor septi nasi muscle
Muscular depressor septinasi.PNG
Upper jaw ( Fossa incisiva )
Nasal septum
Pulling down of the nostril, narrowing of the nostril
Facial nerve ( cranial nerve VII)

The depressor septi nasi muscle ("pulling down the nasal septum") is a delicate skin muscle between the nose and upper lip that belongs to the mimic muscles . It arises in the incisive fossa of the upper jaw and attaches to the nasal septum (septum nasi). In the area of ​​attachment, it partially connects with the wing part of the nasal muscle . The depressor septi nasi muscle is an opponent of the other nasal muscles, pulls the nostrils downwards and thus narrows the nostril on the same side.