Dog · Bone · Thorax
Manubrium
Manubrium sterni
The first and most cranial piece of the sternum; it projects in front of the first ribs and gives origin to the sternocephalicus and sternohyoideus.
- System
- Bone
- Region
- Thorax
- Sides
- Single, on the midline
- Named parts
- 2
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.
- Action
- The first and most cranial piece of the sternum; it projects in front of the first ribs and gives origin to the sternocephalicus and sternohyoideus.
Written for Vetomica in its own words from the standard reference anatomy of the dog; the books it was checked against are listed below.
Named parts
What to look for on the bone, and what each part is called in the Nomina Anatomica Veterinaria.
- Manubrium of the sternumManubrium sterni
- The first and most cranial piece of the sternum, which the first pair of costal cartilages meets.Miller 2020, p. 294
- Sternal synchondrosesSynchondroses sternales
- The cartilage joints that hold the sternebrae to one another.Miller 2020, p. 295
What it meets
First sternebra; first costal cartilages articulate with it.
Bones it articulates with
- Rib 1
- Manubrial cartilage
Joints it forms
- Sternal synchondroses
Muscles and ligaments that take hold of it
- Sternocephalicus
- Descending pectoral muscle
Measured on the specimen
What the manubrium is in contact with in the model itself, with the share of the other structure’s surface it covers. A contact is not always a joint: bones that simply lie against one another are in this list too.
- Synchondrosis manubriosternalis34%
- Costal cartilage 132%
- Costal cartilage 132%
- Sternebra 214%
- Costal cartilage 211%
- Costal cartilage 211%
Measured on the left side.
Terminology
- English
- Manubrium
- Latin (NAV)
- Manubrium sterni
- 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.
- Miller 2020Miller 2020, ch. 4 The Skeleton, Sternum, PDF p. 294
- König & Liebich 2020skeleton of the thorax, p. 125
- Dyce 2017ch. 13 Thorax of the Dog and Cat, p. 403
- NAV 2017Osteologia