The sternum of a horse, also known as the breastbone, is a significant anatomical structure in the horse's chest region. It plays an essential role in providing support to the ribcage, protecting vital organs, and serving as an attachment point for various muscles and ligaments. Here's some information about a horse's sternum:
the Anatomy of the sternum...
The sternum in a horse is a long, flat bone that runs down the center of the horse's chest. It is made up of several segments or sternebrae that are connected by cartilage. The number of sternebrae in a horse's sternum can vary depending on the individual, but typically ranges from 15 to 18 segments.
what is the main Function?
The primary function of the sternum is to provide structural support to the chest and ribcage. It helps maintain the shape of the chest cavity, which, in turn, protects the heart, lungs, and other vital organs. It also plays a role in stabilising the ribs during breathing.
Muscular Attachments:
Various muscles and ligaments attach to the sternum, including the pectoral muscles, which are responsible for movements of the forelimbs. The sternum acts as a central anchor point for these muscles, allowing the horse to move its legs effectively.
Sternum Fractures:
Although the sternum is a sturdy bone, it can be susceptible to fractures, especially in cases of traumatic injuries such as falls or collisions. Sternum fractures can be painful and may require veterinary intervention.
Cartilage:
the segments of the sternum are connected by cartilaginous tissue. This cartilage provides some flexibility to the sternum, allowing it to move slightly during the horse's respiratory cycle. It also helps absorb and distribute forces and shocks that the chest may experience during physical activities.
Age and Development: In young horses, the sternum is not fully fused, and the segments are not as rigid as in mature horses. As the horse ages, the cartilaginous connections between the segments gradually harden and become more stable.
horses sternum info...
