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Transforming Exam Delivery
The NBCE Board of Directors has never wavered on its promise to deliver an excellent, on-campus computerized testing experience to students. Likewise, there has never been a compromise to the delivery of fair, valid and legally defensible exams.
Catch the Workplace Wellness Wave
Do you offer workplace wellness services to local businesses? If not, you might want to consider this lucrative channel for expanding your practice. Workplace wellness programs and wellness-related benefits have grown in popularity over the past several decades.
Better With Chiropractic
While chiropractic care is receiving high levels of exposure these days, most pain patients who consult with a health provider still do so with their primary-care MD. And of course, that means in most cases, they're receiving standard medical care, not chiropractic.
The Acupuncturist and the Opioid Crisis: Conquering Pain & Addiction in the U.S.
The current opioid epidemic dominates the discussion among national health leaders, recovery advocates and families nationwide. Opioids include heroin as well as prescription pain relievers such as oxycodone, hydrocodone, codeine, morphine, fentanyl, and others.
NBCE to Reinstitute Computer-Based Exams
The National Board of Chiropractic Examiners (NBCE) has announced it will reinstate computer-based testing in January 2019 courtesy of a partnership with testing and assessment solutions provider Prometric.
Dropping Insurance: 4 Steps
My office manager just got off the phone with the secretary of a long-standing patient. I have treated this woman and 10 members of her family for more than a decade. She has, as have all of my patients, paid my fee at the time of service since I dropped insurance in 1997.
Spring Allergies & The Spleen: Looking at Pattern Differentiation
As the season of Spring fades away and we shift into the warm summer months, many patients suffer from chronic allergies. This is by far one of the most common issues I see in the clinic as well as often mistreated and misdiagnosed.
It's Time for a Functional Approach to Chronic Illness
It seems one of the more modern buzzwords is chronic, referring to diseases – that is to say, "ongoing and incurable." However, we can take a different perspective and recognize that, although the body may have been traumatized and injured, healing should always be viewed in the realm of possibility.
Multi-Dimensional Acupuncture: 3D, 4D & 5D
Maggie is an intuitive healer and workshop leader who I met on a recent hike. While we were talking she told me how she had to take it easy because of her knees. She said that her doctor told her that she has the early signs of arthritis.
New Opportunities for DCs
For decades, the model chiropractic practice has been the single-doctor practice. Recent surveys have found that approximately two-thirds of U.S. doctors of chiropractic still practice this way, with another 20 percent practicing in multiple-chiropractor practices.
Bastyr University: On the Front Lines of the Pain Epidemic
At University of Washington's Harborview Medical Center, the Seattle region's only Level I Trauma and Burn Center, the demands for in-patient care are dramatically different from a private clinic environment.
Is Primary Spine Care the Answer for Chiropractic?
Recently, we sat down with Mark Studin, DC, FASBE(C), DAAPM, DAAMLP, to discuss the state of chiropractic and why primary spine care may hold the key to chiropractic's future. Read what he had to share in this exclusive interview.
Official NCCAOM Practice Tests
The National Certification Commission for Acupuncture and Oriental Medicine (NCCAOM) is excited to announce the launch of the new NCCAOM Exam Preparation Center.
First World Spine Care Graduate: Hildah Molate
Hildah Molate, the first World Spine Care (WSC) scholarship student, graduated from Palmer College of Chiropractic earlier this year and is now working at the WSC community spine clinic in Shoshong, Botswana.
Regenerative Medicine: How to Do It by the Books
The "lay of the land" for regenerative therapies, including but certainly not limited to adult stem-cell treatments, seems to change almost daily.
Practice Pearls: There's More to ROM Than Meets the Eye
As part of my neuromusculoskeletal examination, I perform range-of-motion (ROM) evaluations. I can "eyeball" the range and measure, I can use a goniometer and measure, I can use my phone app and measure, or I can use various other instruments to help determine degrees of motion.
Old Trend, New Risks: Heavy Weight Training
With more opportunities to exercise than ever, a greater selection of exercise options, and the subsequent opinions supporting and challenging their merits, it's easy to be confused as to which approach is best.
Prevention: Stop Recurrent Urinary Tract Infections
The recurrent urinary tract infection (UTI) is one of those nuisance conditions that can play havoc with quality of life, and this particular infection is much more common than most people realize.
Reducing Allostatic Load & Stress Through Heightened Awareness
Your contemporary mental health and psychotherapy colleagues may often approach the treatment of allostatic load as a mental health condition and use prescription psycho-pharmaceutical medicine to affect general and specific central nervous system (CNS) pathways and brain neuro-chemistry medicine to alleviate the associated symptoms.
Acupuncture's Standard of Care
Both a concern and critique of acupuncture, frequently espoused by the bio-medical community is, "there is no standard of care in acupuncture." The following is why I believe this statement is disingenuous at best.
TCM Codes for the World
I just received an email concerning the ICD-TM11 codes. The World Health Organization (WHO) will be presenting the new ICD-11 codes to World Health Assembly very soon.
News in Brief
Parker University Launches New Open-Access Research Journal for Chiropractic; Western States, Cleveland-KC Name New Deans of Chiropractic Colleges; Sherman College Goes Tobacco-Free; Life University Wins 11 Awards.
Diagnosing & Treating Aggressive Energy
Recently, there has been an article, and subsequent discussion, about the subject of Aggressive Energy (AKA "AE"), including ways to detect its presence and an alternative method of treating it.
A Novel Way to Prevent Elderly Falls: Toe Strength
In any given year, nearly 40 percent of senior citizens ages 70 and older will fall at least once. Each fall significantly increases the risk of not only sprains, strains and contusions, but also fractures.
Prompting Memory: How to Stimulate Cognition
Recently I gave a talk titled, The Art of Memoir – Tapping the Past to Sharpen the Present at a senior lunch event in Austin, Texas.
Chiropractic's Next Frontier: Adjusting the Microbiome
Restoring a healthy microbiome to help treat disease may be the next frontier in chiropractic offices around the country.
Paving the Way to Integrative Health & Wellness
Jared Polis (D-Colorado) and Mike Coffman (R-Colorado) launched the integrative health and wellness (IHW) caucus in October, 2018.
Cyber Threat Checklist: Defend Your Business With These 10 Steps
Living in an internet connected society brings many conveniences and benefits. The power of the internet to connect us with customers, store data, and find information has opened the door for many small business owners to grow and flourish.
Missed Causes of LBP: It's the Syndrome, Not the Subluxation
When I read the chart notes of other chiropractors, I am usually disappointed. They list what vertebrae are fixated or misaligned. They may describe the involved fascia and muscles.
November, 2008, Vol. 08, Issue 11
The Pressurestat Model Explains the Craniosacral Rhythm
By John Rollinson, D. Eu, CST-D; guest author for John Upledger, DO, OMM
The Pressurestat Model illustrates the mechanism behind the circulation of cerebrospinal fluid through the semi-closed, hydraulic craniosacral system.Originally defined by Dr. John Upledger and a team of researchers at Michigan State University in the 1970s, the model explains the palpable, rhythmic expansion and contraction of the craniosacral system.
The brain and spinal cord are surrounded by cerebrospinal fluid (CSF). This fluid transports nutrients, hormones and peptides. It removes metabolic waste and toxic substances. It serves as a shock absorber, floating the brain to counteract gravity. It even influences respiration and cerebral blood flow, among its many functions. Given all this, it's easy to see how essential it is for CSF to flow unimpaired. If an area of brain tissue is even partially deprived of optimal CSF motion and flow, that area will be forced into some degree of functional compromise.1
Cerebrospinal fluid is held within the dural membrane that surrounds the brain and spinal cord. This tough, watertight sac takes the shape of the interior of the cranium and intervertebral canal. Though dura mater doesn't stretch much, this fluid container is flexible and allows for CSF pressure changes. When pressure increases, the dural membrane expands, and the bones of the cranium and sacrum move along with it. When pressure decreases, the reverse occurs.
This filling of the craniosacral system is known as flexion, and the emptying is known as extension. During flexion, the head becomes wider transversely and shorter in its anterior-posterior dimension. The whole body externally rotates and widens. After flexion, this motion passes through a neutral zone on its way into extension, during which the head narrows and elongates and the whole body internally rotates.
Under normal circumstances, the craniosacral system proceeds cyclically through flexion and extension at a rate of about six to 12 cycles per minute. We can feel this rhythm at various places on the body because "this whole-body response is probably due to the pumping effect of the cerebrospinal fluid upon the motor system ... which causes a rhythmical tonification and detonification of the myofascial system in response to rhythmically fluctuating nerve signals."2
Tracing the Flow of Cerebrospinal Fluid Through the Craniosacral System
So, we have a hydraulic system that surrounds the brain and spinal cord. To understand how it is semi-closed, we must first understand how CSF enters and leaves the system. Within the ventricles of the brain, you'll find a capillary network - the choroid plexus - that produces CSF. In essence, blood circulating through the choroid plexus is "turned into" CSF, which then enters the craniosacral system.
The choroid plexus has stretch- and compression-sensing receptors within the saggital suture of the cranium. As CSF is added to the craniosacral system and its volume increases, the dural container expands, spreading the bones of the head. The parietal bones then move apart and spread the saggital suture. When this happens, the whole neuromechanism signals the choroid plexus to stop or greatly reduce the production of CSF. As the fluid drains from the system, the dura and cranium shrink and the parietals come together, compressing the saggital suture. The pressure-sensing nerve endings connected to the choroid plexus then send a signal to resume CSF production and the cycle repeats.
Normally, the system seems to operate on a cycle of about six seconds; CSF is produced for about three seconds and then production ceases for about three seconds. This creates the rhythmical rise and fall of fluid pressure within the system.
From the lateral ventricles, CSF enters the third ventricle via the foramina of Monro, then the fourth ventricle via the cerebral aqueduct. The CSF then enters the subarachnoid space and the central canal of the spinal cord via the foramina of Luschka and of Magendie, where it joins the CSF that is already bathing the brain and spinal cord, and all neural tissue enclosed by the dura mater. The fluid then circulates down and around the spinal cord and up and around the brain.
Cerebrospinal fluid passes out of the semi-closed hydraulic system via folds - called arachnoid granulation bodies or arachnoid villae - of the arachnoid layer of the cranial meninges that project through the inner layer of dura mater into the venous sinuses of the brain.3 CSF is reabsorbed into the venous blood through these arachnoid villae, which are primarily in the saggital venous sinous.
Although the rate of reabsorption is fairly constant, it seems to be regulated (think of a car idling) by a cluster of arachnoid granulation bodies found at the anterior end of the straight sinus. From its position at the "crossroads" of the intracranial membranes, this cluster can become aware of any tension within the membrane system and may regulate the outflow of CSF accordingly.
To summarize in a different way, the craniosacral system is like a leaking toilet with the tank cracked into pieces and lined with a giant exam glove (which is the dural membrane). The float-switch in the toilet tank is the saggital suture, which causes an inflow whenever enough water/CSF leaks away down the drain (sinuses).
Generating Whole-Body Effects
The craniosacral system is intimately related to the nervous, musculoskeletal, vascular, lymphatic, endocrine and respiratory systems. Just as abnormalities in the structure or function of any of these systems can influence the craniosacral system, abnormalities in or injuries to the structure or function of the craniosacral system can have profound and deleterious effects on the development or function of the nervous system, especially the brain.4
There are also ways in which the craniosacral system directly influences important, ongoing physiological processes. For instance, the continuing rhythmical movement of the system may serve to "milk" the pituitary gland and affect the neuroendocrine system. The rhythmic motion may also be an important stimulus for the development of the brain. Similarly, the motion around the skull sutures may pump the newly formed red blood cells out of the flat bones of the skull and into the general circulation.5
Of course, any abnormality of the craniosacral system could impact the body or any of its parts through the central nervous system. Any deficiency in circulation of CSF could affect brain and nerve functioning. Any restriction of nerves passing out of the craniosacral system due to restrictions in the cranial sutures or membranes may affect their end organs. Thanks to the Pressurestat Model, we can see why.
Click here for previous articles by John Upledger, DO, OMM.
John Rollinson practices full-time in Northampton, Mass., and at several school clinics in the area. You can contact him at www.rosetrust.org.
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