Category
Nasolabial fold, marionette lines, glabellar region, jawline, malar zone, tear trough — injection anatomy.
11 terms
Facial anatomy and regional knowledge underpin every safe answer to the question of "which product, in what plane, at what dose, exactly where." Modern injectable and energy-based treatments require thinking about five distinct anatomical layers — skin, subcutaneous fat, the superficial musculoaponeurotic system (SMAS), deep fat compartments and periosteum — independently. Over 30 facial mimetic muscles, the deep and superficial fat compartments mapped by MD Codes™ (deep medial cheek fat, buccal fat, nasolabial fat, SOOF, ROOF, jowl fat) and critical vascular-neural landmarks (facial artery, angular artery, supratrochlear artery, dorsal nasal artery, supra-orbital and infra-orbital nerve foramina) are mandatory knowledge for safe practice. Bony support also declines with age: maxillary resorption, flattening of the mandibular angle, orbital rim widening and bony thinning around the glabella are major structural drivers of the "downward sliding" appearance of the ageing face. These bony losses combine with soft-tissue migration and dermal elastin depletion to produce the overall ageing picture. At Dr. Hamza Gemici’s clinic every filler and energy procedure begins with standardised-light photo analysis, facial mapping, a five-layer analysis, animated mimetic photography and planning of vascular safe corridors; ultrasound guidance is used where indicated. Glossary terms in this category cover mimetic muscle function, named fat compartments and their age-related changes, vascular danger zones, neural foramina and structural ageing — educational, not prescriptive.
The glabella muscle is the pyramidal muscle located behind the medial superciliary (above the eyebrow) of the forehead area; The main muscle that works bilaterally and pulls the eyebrows medially and downwards, forming the pionels and glabellar "11 lines"; The primary goal of Botox treatment.
A triangular muscle in the lower-lateral facial region that pulls the corner of the mouth (oral commissure) down and creates a "sad" or "marionette line" facial expression; The main target of "DAO botox" and Nefertiti lifting protocol in botox applications.
The frontal belly of the occipitofrontalis muscle, which pulls the forehead skin and eyebrows upward; Bilateral facial muscle, which is the primary cause of forehead lines and the main target of forehead botox.
The inter-eyebrow forehead area (glabella — from the nasion to the supraorbital rim), the topographic zone containing the procerus and corrugator supercilii muscles; is the main center of expression aging with dynamic and static "lines of 11" (glabellar rhytides); It is the primary target of Botox injection, but carries a risk of vascular blindness through the supratrochlear-ophthalmic anastomosis.
Topographic zone located around the mid-lateral region of the face, zygomatic arch and malar eminence; anatomy, where atrophy of the deep medial cheek fat compartment plays a primary role in middle-aged facial aging, and is the target area of liquid facelift and volumetric injection.
Anatomical lines extending from the corner of the mouth (oral commissure) to the lower edge of the mandible, resulting from the activity of the depressor anguli oris muscle and volume loss, creating a "marionette" or "sad face" appearance; Treatment requires a combination of DAO botox + dermal filler.
The primary mastication muscle, which pulls the mandible upwards, is the bilateral muscular structure that determines the width and contour of the lower face; Anatomy at the center of hypertrophy, bruxism and Botox applications.
Nasolabial fold (NLF) is the oblique pleat that extends from the base of the nose to the corner of the mouth and separates the medial cheek from the upper lip; Anatomical area that deepens after medial cheek fat descent during aging. It is the non-glabellar injection site with the highest risk in terms of vascular occlusion because the facial artery courses in the medial alar region and the ophthalmic anastomosis of the angular artery.
Esphincter muscle surrounding the eye; bilateral structure that closes the eyelids, creates eye wrinkles and assists lacrimal drainage; The primary target of Botox applications and the anatomical basis of crow's feet.
The small pyramidal muscular structure located on the root of the nose is the facial expression muscle that pulls the eyebrows medially and creates horizontal "rabbit lines" in the glabella region; Glabellar complex is the primary target of Botox applications.
Tear trough (infraorbital cavity) is the natural depression area formed at the orbital-cheek border; It is the anatomical region with the highest risk for hyaluronic acid filler injection due to 0.5 mm skin thickness, SOOF (suborbicularis oculi fat) atrophy and proximity to the infraorbital artery.
Yes — several high-risk vascular zones are well described, particularly for filler injection. The glabella, nasal dorsum, upper nasolabial region, infra-orbital area and temple top the list of high-risk zones. These regions contain the supratrochlear, angular, dorsal nasal, infra-orbital and superficial temporal arteries. Incorrect technique or wrong-plane injection can produce rare but serious vascular complications such as skin necrosis or vision loss. The injector’s anatomical knowledge, access to ultrasound guidance, cannula preference and readiness to deliver an emergency protocol (hyaluronidase, warm compresses, vasodilation regimen) are critical safety factors. These protocols are part of standard practice at Dr. Hamza Gemici’s clinic.
Facial fat is not a single layer — it is organised into compartments separated by connective-tissue septa, divided broadly into superficial and deep groups. Superficial compartments include nasolabial fat, jowl fat and lateral malar fat; deep compartments include deep medial cheek fat, suborbicularis oculi fat (SOOF), retro-orbicularis oculi fat (ROOF) and buccal fat. With ageing these compartments shrink, descend and shift in an uneven pattern, producing the "sliding downwards" appearance that is in fact a combination of volume loss and migration. Modern filler strategy focuses on restoring deep compartments — particularly the deep medial cheek fat — in their original anatomical position. This deep structural support produces a more natural result than superficial overfilling.
Facial mimetic muscles vary in function, thickness and resting activity by region. The frontalis is a single large elevator of the forehead, so botox dosing must be carefully calibrated. The glabellar complex (corrugator supercilii, procerus, depressor supercilii) consists of small but heavily used muscles functionally linked to forehead lines. The orbicularis oculi is superficial and responds to low doses. In the lower face, depressor anguli oris, mentalis and platysma work as antagonists to each other. A "same dose for every patient" approach therefore does not produce reliable results; dosing is calculated individually based on muscle mapping and a functional mimetic analysis. At Dr. Hamza Gemici’s clinic functional mimetic photographs are taken for every patient.
Facial bones undergo resorption with age — particularly the maxilla, mandible and orbital rim, which shrink and flatten. Loss of this bony support causes the overlying soft tissues to yield more readily to gravity, contributing to the "sliding face" appearance. Modern filler strategy uses a supraperiosteal (on-bone) plane with firm, high-G' HA or biostimulator fillers such as CaHA to mimic this lost bony support. This approach provides structural stability and a foundation for redistributing the more superficial soft-tissue compartments. Superficial filler alone, in the absence of underlying support, can produce a "puffy but unstructured" result — which is why an anatomical approach matters.
At Dr. Hamza Gemici’s clinic every injectable patient undergoes a standardised pre-treatment routine: standardised lighting photography (frontal, three-quarter, profile, chin-up/chin-down), animated mimetic photographs, anatomical landmark marking, vascular safe-corridor planning and ultrasound guidance where required. This mapping increases safety and allows the treatment plan to be reviewed jointly with the patient. At follow-up the same positions are repeated for objective comparison. Rapid "straight to injection" consultations are not the recommended standard. Anatomical mapping is no longer a one-off step in modern medical aesthetics — it is a continuous, repeated standard of care.