Nervous System Anatomy and Brain Waves
The two major organs that make up the Central Nervous System
What are the brain and spinal cord?
This systemic network of glands and organs regulates long-term physiological functions through hormone feedback loops.
What is the Endocrine System?
These massage effects are the direct, physical results of the therapist's hands manipulating the client's tissues.
What are mechanical effects?
This three-stage model (alarm, resistance, exhaustion) describes the physiological changes the body goes through under chronic stress.
What is General Adaptation Syndrome (GAS)?
This statement identifies research priorities and helps massage organizations make strategic decisions; updated by the MTF in 2020.
What is a research agenda?
This massive division of the nervous system connects the brain and spinal cord to the rest of the body.
What is the Peripheral Nervous System (PNS)?
The brain's 'reward' neurotransmitter; it enhances motor coordination, mental focus, and feelings of enthusiasm.
What is dopamine?
These massage effects are indirect, involuntary responses triggered by the nervous system when sensory receptors are stimulated.
What are reflexive effects?
The first stage of General Adaptation Syndrome, characterized by an immediate 'fight-or-flight' survival burst.
What is the alarm reaction?
This temporary reddening and warming of the skin is caused by a localized increase in blood capillary flow.
What is hyperemia?
This branch of the Peripheral Nervous System automatically regulates involuntary body systems such as heart rate, respiration, and digestion.
What is the Autonomic Nervous System (ANS)?
ynthesized from tryptophan, this critical neurotransmitter regulates mood, appetite, sleep, and memory.
What is serotonin?
This mechanical change physically elongates muscles, fascia, and scar tissue to improve physical flexibility.
What is tissue stretching?
The second stage of GAS where the body tries to cope and find a temporary balance while remaining on prolonged high alert.
What is the resistance reaction?
Research shows that massage thins the blood, causing this specific physical property of blood to decrease.
What is blood viscosity?
This division of the Peripheral Nervous System controls voluntary muscle movements.
What is the Somatic Nervous System (SNS)?
Natural systemic painkillers released by the central nervous system that block widespread discomfort and induce mild physical euphoria.
What are endorphins?
Deep cross-fiber friction is mechanically used to physically separate these stuck layers of muscle fibers and fascial restrictions.
What are adhesions?
The final stage of GAS where resources are completely drained, leading to immune breakdown, chronic fatigue, and severe muscle guarding.
What is the exhaustion reaction?
This type of massage is highly effective at relieving edema and lymphedema after post-surgical breast cancer procedures.
What is manual lymph drainage (MLD)?
This specialized autonomic subdivision directly manages the gastrointestinal tract and digestion.
What is the Enteric Nervous System (ENS)?
Manual pressure on fascial tissues stimulates the on-demand release of these lipid-based neurotransmitters that calm localized inflammation.
What are endocannabinoids?
This mechanical action involves physically pushing blood through veins and lymph through lymphatic vessels.
What is fluid movement (or manual circulation)?
This pain-relief mechanism uses a mild, superficial skin stimulus (like heat, cold, or vigorous rubbing) to block deeper pain signals.
What is counterirritation?
Research indicates that massage increases the count of these blood components, which play a crucial role in clotting.
What are blood platelets?
Known as the 'relaxation switch,' this cranial nerve runs from the brain to the heart, lungs, and stomach to control relaxation.
What is the vagus nerve?
Known as the 'bonding hormone,' this skin-to-skin touch chemical lowers blood pressure, reduces fear, and enhances therapeutic trust.
What is oxytocin?
The mechanical scraping away of dead skin cells from the epidermis through friction during massage.
What is skin desquamation?
This clinical method involves applying steady, firm pressure to a muscle knot to overload local nerve endings and exhaust pain signals.
What are hyperstimulation mechanisms?
Massage has been shown to increase the levels of these immune-system cells, helping the body defend against infection.
What are lymphocytes?
This branch of the autonomic nervous system triggers 'fight-or-flight' stress responses, spiking heart rate and muscle tension.
What is the Sympathetic Nervous System?
Released by the adrenal medulla, massage down-regulates this hormone to reduce elevated heart rate and physical anxiety.
What is epinephrine (or adrenaline)?
This reflexive effect involves sensory nerves signaling blood vessels to widen, which warms the tissue and lowers blood pressure.
What is vasodilation?
This somatic reflex is an automatic muscle contraction triggered by a rapid stretch to prevent fibers from tearing.
What is the stretch reflex?
Regular massage treatments improve motor skills, sleep, and fatigue in patients suffering from this neurodegenerative disorder.
What is Parkinson disease?
This branch of the autonomic nervous system mediates 'rest-and-digest' settings, lowering heart rate and promoting tissue repair.
What is the Parasympathetic Nervous System?
This neurotransmitter, is increased by massage, helping to improve ADHD symptoms.
What is dopamine?
The release of histamine during a massage can sometimes cause this medical term for severe itching.
What is pruritus?
This specialized sensory receptor in muscle tissue detects rapid length changes and triggers the automatic stretch reflex.
What are muscle spindles?
While research reviews emphasize a need for larger, well-designed studies, massage is widely used to improve sleep, relieve fatigue, and reduce pain and post-surgical swelling for patients battling this disease.
What is cancer?
Electroencephalogram studies (EEGs) show that a standard Swedish massage physically alters these electrical rhythms.
What are brain waves?
Massage increases cellular sensitivity to this glucose-regulating hormone, helping clear sugar from the bloodstream.
What is insulin?
This physiological theory explains how stimulating fast-acting touch receptors reflexively blocks slower-moving pain signals at the spinal cord.
What is Gate Control Theory?
his somatic reflex is an automatic muscle relaxation triggered by high tension to keep tendons from pulling off the bone.
What is the tendon reflex? (aka inverse stretch reflex)
A systematic review found significant improvements in movement and pain when patients with this joint condition received massage, yoga, or tai chi.
What is arthritis?
These slower, rhythmic brain waves (8–12 Hz) appear when you close your eyes and relax while remaining conscious.
What are alpha waves?
Secreted by the pituitary, this hormone's availability is indirectly optimized by massage through lowering cortisol and improving deep sleep.
What is growth hormone (GH)?
Squeezing a sponge or stretching a rubber band serves as a perfect physical analogy for this category of massage effects.
What are mechanical effects?
This specialized sensory receptor in tendons detects slow, sustained tension and triggers the inhibitory tendon reflex.
What are Golgi tendon organs (GTOs)?
Massage increases circulation, reduces spasms, and changes neurotransmitters to help manage this complex, widespread pain syndrome.
What is fibromyalgia?
These fast brain waves (12–30 Hz) are associated with active thinking, problem-solving, or stress and anxiety, and are decreased by massage.
What are beta waves?
Massage consistently lowers circulating levels of this primary glucocorticoid stress hormone by roughly 30%.
What is cortisol?
Flipping a light switch to turn on a circuit serves as a perfect neurological analogy for this category of massage effects.
What are reflexive effects?
This somatic reflex is an automatic withdrawal movement that jerks an injured limb away from sudden, sharp pain.
What is the flexor reflex?
Massage helps relieve symptoms of this chronic skin condition, including redness, dry skin, scaling, crusting, and itching.
What is eczema?
These slow brain waves (4–8 Hz) are linked to deep relaxation, meditation, and the twilight state right before falling asleep.
What are theta waves?
Endogenous opioids released alongside endorphins that specifically help modulate the emotional response to physical pain.
What are dynorphins?
The localized physical reduction of swelling in an athlete's ankle through light effleurage is classified as this type of effect.
What is a mechanical effect?
This somatic reflex straightens the opposite leg to catch your balance when an injured leg lifts away from pain.
What is the crossed-extensor reflex?
Abdominal massage relieves constipation by physically stimulating these wave-like muscle contractions that move food, liquid, and waste through the digestive tract.
What is peristalsis?
Massage lowers this specific stress neurotransmitter associated with physical vigilance to transition the body to a parasympathetic state.
What is norepinephrine (or noradrenaline)?
Small peptide endogenous opioids that suppress pain signals directly at the spinal cord level to block peripheral discomfort.
What are enkephalins?
Softening stiff, gel-like fascial tissues into a fluid, pliable state is achieved through a combination of mechanical pressure and this.
What is heat?
Relaxing tight surrounding muscles physically removes pressure on trapped nerves, helping reduce this painful condition.
What is nerve impingement?
Research assessing this gentle, specialized massage technique on patients with migraines found a significant decrease in headache frequency and a reduced intake of pain medication.
What is manual lymph drainage (or MLD)?
This autonomic setting, triggering during severe trauma or neglect, causes total energy conservation, numbness, and psychological detachment.
What is Conservation Withdrawal (or the freeze response)?
Clinical guidelines suggest that massage near recent insulin injection sites do what?
What is accelerates local insulin absorption rates.
Deep strokes help realign disorganized strands of this structural protein to match natural movement patterns.
What is collagen?
Division of the peripheral nervous system (PNS) that is affected by massage through neuromuscular and hyperstimulation mechanisms.
What is the somatic nervous system?
This non-invasive assessment of autonomic nervous system balance measures the tiny, natural timing variations between heartbeats.
What is heart rate variability (HRV)?
Massaging areas near this nerve pathway—like the neck and shoulders—relieves physical tension and improves its overall biological 'tone.'
What is the vagus nerve?
Serotonin serves as a crucial chemical precursor to this sleep hormone.
What is melatonin?
Sustained pressure on a muslce reflexively signals the central nervous system to decrease muscle tone (tension) by activating these proprioceptors located in the tendon where it meets the muscle fibers.
What are golgi tendon organs?
In trauma-informed massage, muscles that feel like solid rock or steel bands, held tight by the brain as a defensive shield, are called this.
What is physical armoring?
While massage is widely used to manage pain and anxiety, clinical research shows it is also highly effective at reducing respiratory symptoms in pediatric populations battling this chronic inflammatory airway disease.
What is asthma?