Sentences with phrase «occipital bone»

Histopathological studies of occipital bone development are needed in order to compare the CKCS to other breeds of dog.

Caudal occipital malformation syndrome is a genetic deformation of the mesoderm of caudal occipital bone causing cerebellar compression and herniation.

It has been proposed that the volume mismatch between the CCF and brain parenchyma in CKCS can be explained by impaired occipital bone development and the consequent reduction in CCF volume [5], [16], [21].

Veterinary Record 153: 107 - 112 Rusbridge C and Knowler SP, 2004 Inheritance of Occipital Bone Hypoplasia (Chiari type I malformation) in Cavalier King Charles spaniels.

The most common procedure for Chiari like malformation is suboccipital decompression where the hypoplastic occipital bone and sometimes the cranial dorsal laminae of the atlas are removed (with or without a durotomy) to decompress the foramen magnum.

We can describe magnetic resonans imaging findings as a narrow subarachnoid space in cervicomedullar junction, occipital bone compression on caudal cerebellum, rostral movement of caudal cerebellum, syringomyelia, cerebellar herniation from foramen magnum and kinked appearance of caudal medulla.

We can describe Chiari - like Malformation as an overcrowded and narrow caudal occipital fossa and cervicomedullar junction due to a congenital developmental malformation of caudal occipital bone.

References Rusbridge C and Knowler SP, 2003 Hereditary aspects of occipital bone hypoplasia and syringomyelia (Chiari type I malformation) in cavalier King Charles spaniels.

The term refers to the fact that the back of your baby's skull (the occipital bone) is in the back (or posterior) of your pelvis.

Therefore, the sacrum being the very bottom of the spine, the base of the spine between the pelvis and then the cranium being up here and primarily it's the occipital bone that will create that pumping motion.

Cephalhematoma most commonly occurs over the parietal bone and occipital bone.

According to most definitions, the trapezius muscles are large, diamond - shaped surface muscles that extend longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula.

In human anatomy, the trapezius is either one of two large superficial muscles that extend longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula (shoulder blade).

The Cavalier King Charles Spaniel is a breed well - known to have a birth defect in the occipital bone leading to cerebellar herniation, a condition known as Syringomyelia.

The cerebellum is pushed (herniated) out the skull because there is not enough space since the volume of the back of the skull (occipital bone) is too small.

CMs may develop when the bony space, caudal occipital bone, is smaller than normal, causing the cerebellum and brain stem to be pushed downward into the foramen to the level of the foramen magnum (mild CM) or through the foramen magnum (severe CM) into the upper spinal canal.

This is accomplished by removing the back of the occipital bone and often the top of the first few vertebrae.

This large bump on the dogs head is actually the occipital bone which can be more prominent in both breeds and individual dogs.

The skull may show some median line; the occipital bone is not conspicuous in mature dogs.

This can be done by either removing some or all of the occipital bone.

One of the most frequent conditions that will cause this flow interference is when the bone at the back of the head (known as the occipital bone) is too small.

The malformation is comparable to the Chiari type I malformation described in people and includes a congenital malformation of the occipital bone, resulting in a crowded caudal fossa and cerebellar herniation at the foramen magnum.

If this is also true in dogs it may have implications for the development of CM, as the CCF may have a restricted capacity to adapt to the volume of an enlarged cerebellum through expansion of the sutures between the occipital bones and their neighbours.

Studies of human skulls have found that the occipital bones adapt to the shape of the growing cerebellum.

Although the occipital bone comprises a single bony plate in an adult individual, its development is complex and mosaic as it develops from the basioccipital, exoccipital, and supraoccipital bones which are derived from distinct acrochordal and parachordal, occipital arch, and supraoccipital cartilages, respectively [40].

In one study, the occipital bones showed a resorbtive pattern of bone around the cerebellar hemispheres in adults and in children [44], suggesting that bone remodelling continues long after skull sutures have fused.