Clench your teeth (lightly, not max).
Now bend forward and reach toward your toes.
Come back up.
Relax your jaw: lips closed, teeth not touching.
Bend forward again.
If the second rep felt different (range, ease, low-back grab, hip tension)… That wasn’t flexibility. That was your jaw changing your pelvic brace.
Most people don’t realize these two structures are linked. Not just through posture or movement habits, but through your developmental blueprint. They formed from the same embryonic tissue. They’re connected by fascia that wraps your entire nervous system. When one moves, the other responds.
This is why your hip pain keeps coming back no matter how much you stretch. This is why your pelvic floor won’t release no matter how many exercises you do. This is why your lower back locks up and nothing seems to fix it.
You’ve been treating the pelvis. But the signal is coming from above.
I wrote about exactly how this connection works and why it’s one of three inputs that control your entire posture. When you understand these three systems, you’ll understand why stretching never fixed anything.
Muscles of the Face – Anatomy Behind Human Expression
The human face is capable of producing a wide range of expressions that reflect emotions, communication, and social interaction. These movements are made possible by a specialized group of muscles known as the muscles of facial expression. Unlike most skeletal muscles, these muscles typically originate from bone or fascia and insert directly into the skin, allowing them to move the skin of the face and create expressions.
General Characteristics
Muscles of the face are primarily located in the superficial fascia of the face and scalp. Their unique insertion into the skin allows subtle and complex movements such as smiling, frowning, blinking, and speaking.
Most of these muscles are supplied by the facial nerve (cranial nerve VII), which is responsible for motor control of facial expression.
Major Muscles of the Face
Frontalis (Frontal belly of occipitofrontalis)
This muscle covers the forehead and is responsible for raising the eyebrows and producing wrinkles on the forehead, commonly seen in expressions of surprise.
Orbicularis oculi
A circular muscle surrounding the eye that enables blinking and closing of the eyelids. It also helps protect the eyes by allowing rapid eyelid closure.
Orbicularis oris
Encircling the mouth, this muscle controls movements of the lips, such as closing, puckering, and protruding them. It plays an important role in speech and eating.
Buccinator
Located in the cheek, this muscle compresses the cheek against the teeth. It is essential for chewing and helps keep food between the teeth during mastication. It also assists in blowing and whistling.
Zygomaticus major and minor
These muscles extend from the zygomatic bone to the corners of the mouth. They are responsible for elevating the angle of the mouth during smiling and laughter.
Levator labii superioris
Raises the upper lip and contributes to facial expressions like disdain or sadness.
Depressor anguli oris
Pulls the corner of the mouth downward, producing expressions associated with sadness or disapproval.
Mentalis
Located on the chin, this muscle elevates the lower lip and wrinkles the chin, often seen in expressions of doubt or displeasure.
Platysma
A thin superficial muscle of the neck that extends into the lower face. It helps tense the skin of the neck and contributes to expressions of fear or tension.
Functional Importance
The muscles of the face play a crucial role in:
• Facial expressions and emotional communication
• Speech articulation
• Blinking and eye protection
• Assisting in chewing and swallowing
• Social interaction and non-verbal communication
Clinical Relevance
Damage to the facial nerve can lead to weakness or paralysis of the muscles of facial expression. Conditions such as Bell's palsy can cause sudden facial muscle paralysis, leading to drooping of one side of the face and difficulty closing the eye or smiling.
Understanding the anatomy of facial muscles is therefore essential in neurology, plastic surgery, dentistry, and physiotherapy.
The muscles of the face are more than anatomical structures—they are the instruments through which humans express emotions, communicate silently, and connect with others.
The human body is connected through a network of fascia — a strong connective tissue that links muscles from head to toe. Instead of working in isolation, muscles function through fascial chains, transmitting tension and movement throughout the body.
Main Fascial Pathways
1. Anterior Fascial Connections
• Blue bands cross the chest and abdomen in an X-shaped pattern.
• Connect the shoulders, rib cage, abdomen, pelvis, and inner legs.
• Help coordinate trunk stability and rotational movement.
2. Posterior Fascial Line
• Runs continuously from the skull → neck → spine → sacrum → hamstrings → calves → plantar fascia.
• Supports posture, balance, and extension of the body.
3. Lateral Line
• Travels along the side of the body connecting the neck, rib cage, pelvis, outer thigh, and lower leg.
• Helps stabilize the body during walking, side bending, and balance.
Why This Matters
Because fascia connects distant parts of the body, pain may appear far from the original problem.
Examples:
• Tight calves may contribute to lower back pain.
• Shoulder tension can affect hip or pelvic movement.
• Fascial stiffness can alter posture and movement patterns.
Clinical Importance
Understanding fascial chains is important in:
• Biomechanics
• Physical therapy
• Sports medicine
• Osteopathy and rehabilitation
These fascial networks explain how the body functions as an integrated movement system rather than isolated muscle
Malocclusions change the lateral and medial pterygoid muscles that attach the mandibular condyles of the mandible to the medial and lateral plates of the pterygoid bone and change the alignment of the sphenoid bone. "The head becomes unlevel".
Atlas subluxations as a result of malocclusions render this type of subluxation a secondary or tertiary problem. This presents the chiropractor with a huge challenge since continual adjustment to the atlas as a primary cause will bring no resolution, unless the malocclusion is resolved. For many chiropractors (both in practice-life and the Yahoos on YouTube), the fact that every single patient is repeatedly given a cervical roll adjustment left then right is a significant sign that something is being missed every time these patients are being treated by the chiropractor for their social media following.
The Diaphragm–Psoas–TFL Connection: A Deep Fascial Chain
This image highlights an important anatomical relationship between the diaphragm, psoas muscle, tensor fascia lata (TFL), and the iliotibial (IT) band. These structures form a functional connection linking breathing mechanics to hip stability and lower-limb movement.
⸻
Diaphragm
The diaphragm is the primary muscle of breathing. It attaches to the lower ribs, sternum, and lumbar spine (via the crura). Beyond respiration, it plays a key role in core stability by regulating intra-abdominal pressure.
⸻
Psoas Major
The psoas originates from the lumbar vertebrae (T12–L5) and inserts onto the lesser trochanter of the femur. It is a powerful hip flexor and an important lumbar stabilizer.
The diaphragm and psoas share fascial and anatomical proximity at the lumbar spine, meaning breathing patterns can influence hip and lower back mechanics.
⸻
Overlapping Area (Diaphragm & Psoas)
The circled region demonstrates their anatomical relationship. Dysfunction in breathing mechanics may increase tension in the psoas, contributing to:
• Lower back pain
• Hip tightness
• Postural imbalance
⸻
Tensor Fascia Latae (TFL)
Located on the lateral hip, the TFL assists in hip flexion, abduction, and internal rotation. It blends into the IT band and contributes to pelvic control during walking and running.
⸻
Iliotibial Band (IT Band)
The IT band is a thick fascial structure running along the outer thigh to the knee. It provides lateral knee stability and transmits forces from the hip to the lower leg.
⸻
Functional Insight
This image demonstrates a kinetic chain:
Breathing mechanics → Lumbar spine control → Hip flexion → Lateral thigh tension → Knee stability
When one component is tight or dysfunctional, it can affect the entire chain.
⸻
Clinical Takeaway
Proper breathing, lumbar stability, and balanced hip muscle activation are essential for:
Doctor 4 all
Dr. Muhammed Ziya
·
✅ Thoracic Outlet Syndrome (TOS) is a group of disorders from compression of nerves or blood vessels in the thoracic outlet, the space between your collarbone and first rib.
✅ It causes pain, tingling, numbness, weakness in the arm/hand, or swelling/discoloration, with Neurogenic TOS (nTOS) being most common (nerve compression) and Vascular TOS (arterial/venous) rarer.
✅ Causes include posture, injury, repetitive arm use, or birth defects, with treatments often focusing on physical therapy, posture correction, or surgery for severe cases.
❄️Types of TOS❄️
➡️ Neurogenic TOS (nTOS): Most common (95%), involving the brachial plexus nerves, causing pain, numbness, tingling, and weakness in the neck, shoulder, arm, and hand.
➡️ Venous TOS (vTOS): Compression of veins, leading to arm swelling, pain, heaviness, discoloration, and clots (Paget-Schroetter syndrome).
Arterial TOS (aTOS): Rarest, compressing arteries, causing coldness, paleness, pain, and poor circulation in the hand/arm.
❄️Symptoms❄️
✔️Pain, aching, burning, or tingling in neck, shoulder, arm, hand.
✔️Weakness or muscle wasting in the hand/arm.
✔️Coldness, paleness, or bluish tint in the hand/fingers (vascular).
✔️Swelling or heaviness in the arm/hand (venous).
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Main Muscle Chains in the Body
Runs along the back of the body.
Pathway
Why This Matters
The Diaphragm–Psoas–TFL Connection: A Deep Fascial Chain
Diaphragm
The diaphragm and psoas share fascial and anatomical proximity at the lumbar spine, meaning breathing patterns can influence hip and lower back mechanics.
Functional Insight
