Zygomatic muscle
Musculus zygomaticus
Draws the angle of the mouth caudally and dorsally.
About the zygomatic muscle of the dog
Zygomatic muscle is a muscle of the head (head), one on each side of the body. Its name in the Nomina Anatomica Veterinaria is Musculus zygomaticus. You can turn it above, see it in place in the head of the dog, and open it inside the whole animal in Vetomica.
Where it runs from and to
A muscle is told apart from its neighbours by what it takes hold of at each end, which is also what decides what it does when it shortens.
- Origin
- Scutiform cartilage and the fascia over the masseter.
- Insertion
- Angle of the mouth.
- Action
- Draws the angle of the mouth caudally and dorsally.
- Nerve
- Dorsal buccal branch of the facial nerve.
Written for Vetomica in its own words from the standard reference anatomy of the dog; the books it was checked against are listed below.
What it works on
Muscles and ligaments it works with
- Frontoscutular muscle
- Zygomaticoauricular muscle
- Zygomaticoscutularis
- Parotidoauricularis
- Platysma
- Masseter
- Orbicularis oris
- Buccinator muscle
Terminology
- English
- Zygomatic muscle
- Latin (NAV)
- Musculus zygomaticus
- Status
- A valid term in the Nomina Anatomica Veterinaria
References
Where to read this structure in full, and where the named parts above were read.
- NAV 2017Myologia
- Miller's Anatomy of the Dog, 5th ed.The Muscular System: muscles of the head
- Dyce, Sack & WensingThe head and ventral neck of the dog and cat
- Miller 2020 (book pass)ch. 6 The Muscular System, PDF p. 463
The zygomatic muscle in other animals
The same structure in the other animals in the Library, to compare.
Questions about the zygomatic muscle
- What is the Latin name of the zygomatic muscle?
- In the Nomina Anatomica Veterinaria, the zygomatic muscle is called Musculus zygomaticus.
- Where is the zygomatic muscle of the dog?
- Zygomatic muscle is a muscle of the head (head), one on each side of the body.
- Where does the zygomatic muscle originate and insert?
- Origin: Scutiform cartilage and the fascia over the masseter. Insertion: Angle of the mouth.
- What nerve supplies the zygomatic muscle?
- Dorsal buccal branch of the facial nerve.
- What does the zygomatic muscle do?
- Draws the angle of the mouth caudally and dorsally.
See the zygomatic muscle inside the whole dog.
Vetomica opens on this structure with every layer of the dog around it: peel back the skin and the muscles, cut a section through it, X-ray it, and practise naming it until you stop getting it wrong.
Free for 7 days, no card. After that the skeletons stay free.
