What is Sphenobasilar Synchondrosis?
The sphenobasilar synchondrosis (SBS; also, sphenobasilar synostosis or sphenooccipital synchondrosis), representing the articulation between the occiput and the sphenoid bone, is regarded as a major component of the cranial model originated by William Garner Sutherland, DO, through his observations that the individual …
Where is the Sphenobasilar Synchondrosis?
1 – Sphenobasilar Synchondrosis is the centre on which the whole cranium pivots. Figure 1 is a diagram of the cranial base seen from a vertex view. The temporal bones have been left out to improve clarity. As its name implies, the SBS is a cartilaginous suture and does not ossify until around 25 years of age.
What is the Sphenobasilar symphysis?
The key articulation for cranial mechanics is the sphenobasilar symphysis, formed by the occiput and sphenoid. The sacrum is then “connected” via the dura that attaches at the foramen magnum (occiput) and at the second sacral segment.
What is cranial strain?
Membranous articular strain, also known as cranial strain. pattern, occurs when an articular or soft tissue restric- tion permits motion of the occiput and sphenoid in one direc- tion but limits it in the opposite direction at the sphenobasilar synchondrosis. Particular strains can be either physiologic in origin, such.
What is the primary respiratory mechanism?
“The primary respiratory mechanism (PRM) is a functional unit based on the accommodative actions of cranial articular surfaces” (Seffinger). PRM has five distinct anatomic-physiologic components: The inherent rhythmic motion of the brain and spinal cord. Fluctuation of cerebrospinal fluid.
What is meant by lateral strain?
From Wikipedia, the free encyclopedia. In continuum mechanics, lateral strain, also known as transverse strain, is defined as the ratio of the change in diameter of a circular bar of a material to its diameter due to deformation in the longitudinal direction.
Where is sphenoid?
An unpaired bone located in the cranium (or skull), the sphenoid bone, also known as the “wasp bone,” is located in the middle and toward the front of the skull, just in front of the occipital bone.
What are sphenoid bones?
What type of bone is the sphenoid?
unpaired bone
The sphenoid bone is an unpaired bone of the neurocranium. It is situated in the middle of the skull towards the front, in front of the basilar part of the occipital bone. The sphenoid bone is one of the seven bones that articulate to form the orbit.
What are the five principles of the primary respiratory mechanism?
The phenomena involved in the primary respiratory mechanism are described; they are : the inherent mobility of the spinal cord and brain; the fluctuation of the cerebrospinal fluid; the craniosacral membranous articular mechanism operating around an automatic, shifting, suspended fulcrum as a reciprocal tension …
What is PRM osteopathic medicine?
One of the main principles of the CC is the primary respiratory mechanism (PRM), which is hypothesized to be a palpable physiological phenomenon that occurs in rhythmic cycles, called flexion- and extension-phase, which are independent from cardiac and respiratory rates.