Full Nose Anatomy
Explained Hella stuff also there --> https://looksmax.gg/threads/droopy-nose-and-its-anatomy-high-iq.9248/
What Even is the Nose?
Nose is a landmark and it's very complicated...it's a complex pyramid of:
- bones
- cartilages
- muscles
- ligaments
- skin
- blood vessels
- nerves.
Variations make it unique by ethnicity / age / genetics.
- bones
- cartilages
- muscles
- ligaments
- skin
- blood vessels
- nerves.
Variations make it unique by ethnicity / age / genetics.
Nose Have 3 Layers (!)
Skeleton:bones + cartilages
Soft tissues:
muscles / ligaments / fibrofatty envelope / skin
Mucosa / lining:
functional part mainly for humidification
Nose is also divided into two parts (kinda) (!)
External: (what you see)
Pyramidal, with root (top at forehead), dorsum (bridge), apex (tip), ala (nostrils), columella (between nostrils)
Example: wide ala = ethnic wide nose
Example: wide ala = ethnic wide nose
Nasal cavity from nares to choanae (back to throat) and with septum dividing it
Now piece by piece
(Gonna say most important thing in each category so it won't be 10min of reading)
Nasal Bones (!)
basically a pair of bones forming the upper 1/3 (bridge). Extends from frontal bone (radix/root) to rhinion (bone-cartilage junction). Articulate with lacrimal (superolateral), maxilla (inferolateral), and overlaps upper lateral cartilages.
Long nasal bones = better dorsal projection (strong bridge). Short = illusion of hump or weak projection.
Shape
Wide/flat = broad nasal base (common in African/Asian ethnicities). Thin = narrow vault.
Appearance
Determines bridge height/width/straightness. Bad = hump nose or crooked.
Aging
Bones resorb slightly, but less impact than cartilage.
Variations
Thicker in some ethnicities (example: wider in Black noses
Maxilla (!)
Upper jawbone, forms nasal floor, sides, and anterior nasal spine. Includes frontal process (lateral to nasal bones) and alveolar part (teeth base).
Bad/recessed maxilla = weak nose projection (nose looks flat/backward). Forward-grown maxilla = strong projection. Retruded ANS = weak tip support, hanging columella.
Shape
Narrow maxilla = narrow alar base + pinched nostrils. Wide = broad base.
Appearance
Basic Foundation of midface. recessed = long/droopy nose illusion.
Aging
Bone resorption = loss of ANS supportm= worsening droop.
Variations
More projected in Caucasian/European. flatter in Asian/African for broader noses
Ethmoid (!)
Unpaired bone in skull base. Perpendicular plate forms upper bony septum. cribriform plate = nasal roof
Indirectly supports dorsal septum for mid-nose height.
Shape
High deviations = crooked dorsum.
Appearance
Rarely direct.but septal issues from there = asymmetric nose.
Aging
Minimally direct, but sinus changes = more infections.
Variations
Larger sinuses in some races.deviations common universally.
Vomer (!)
Thin unpaired bone at nasal floor, forms lower posterior bony septum. Articulates with sphenoid, ethmoid, palatine, maxilla.
Supports caudal septum base = maintains tip height.
Shape
Deviated vomer = low septum twist, crooked columella.
Appearance
(indirect) stable floor = even nostrils.
Aging
Stable, little changes
Variations
Thicker in some ethnic groups , congenital deviations.
Palatine (!)
Paired bones forming hard palate (nasal floor back). Horizontal plates + perpendicular plates (part of lateral walls).
Supports nasal base. Clefts = collapsed floor + weak projection.
Shape
Alters nose base if deformed
Appearance
Clefts = wide alar base and flat nose.
Aging
Resorption = sagging floor.
Variations
Clefts more in certain ethnicities (higher in Asians).
Septal Cartilage (!)
Anterior hyaline cartilage , inserts into maxilla / nasal spine. Forms front septum, supports tip via medial crura
Maintains height/straightness. too short = underprojected tip.
Shape
Deviated = crooked nose/tip
Appearance
Key for straight dorsum.
Aging
Collagen loss = weakening which might lead to ptosis.
Variations
Thicker in Middle Eastern for tension noses.
Upper Lateral Cartilages (ULC) (!)
Paired triangular hyaline, under nasal bones. Form middle vault...fuse to septum. Border nasal valve
Supports mid-dorsum,weak = collapse, poor projection.
Shape
Short = inverted-V deformity (pinch above tip).
Appearance
Smooth dorsum if long.
Aging
Thins = valve issues.
Variations
Wider in broad noses (African).
Lower Lateral Cartilages (LLC/Greater Alar/Major Alar) (!)
Paired C-shaped hyaline, medial crus (columella), dome (tip), lateral crus (nostril).
Projection
Strong domes = good tip projection. Weak = underprojected.
Shape
Convex lateral = bulbous . concave = pinched.
Appearance
Defines tip/ala, bifid if weak domes.
Aging
Softens = ptosis (Aging Nose Syndrome lol).
Variations
Thicker/wider in non-Caucasian (example: bulbous in Black/Asian).
Minor/Accessory Cartilages and Fibrofatty Tissue (!)
Minor Alar/Sesamoid Cartilages: 4 per side, supports ala.
Fibrofatty: Subcutaneous layer with fat/fibers.
Fibrofatty: Subcutaneous layer with fat/fibers.
Minor support ala = better rim strength
Shape
Fibrofatty thick = hides definition.
Appearance
Thick envelope = bulbous (ethnic thick skin)
Aging
Thins/sags = reveals weaknesses.
Variations
More fat in sebaceous-rich skins (Middle Eastern)
Muscles (!)
Elevators (procerus, levator labii alaeque nasi - shorten/dilate). Depressors (depressor septi nasi - pulls tip down). Compressors/Dilators (nasalis - adjust nares). Innervated by facial nerve ig
Dynamic = elevators lift tip.
Shape
Nasalis flares nostrils
Appearance
Overactive = tense/wrinkled nose.
Aging
Weaken = less control, more sag.
Variations
Stronger depressor in some ethnicities (example: dynamic droop in Asians)
Ligaments (!)
Scroll (ULC-LLC junction), Interdomal (between domes), Pitanguy's (midline tip support
Support tip against gravity.
Shape
Maintain contours.
Appearance
Key for firmness.
Aging
Stretch = ptosis.
Variations
Weaker in thin-skinned races
Skin and Soft Tissue Envelope (!)
Projection
Thick adds weight = less projection.
Shape
Thin shows details. thick hides = bulbous.
Appearance
Oily/thick = hard to refine.
Aging
Loses elasticity = droop.
Variations
Thick in African/Middle Eastern, thin in Caucasian.
Blood Supply (!)
External: Dorsal nasal (ophthalmic), angular/superior labial (facial). Internal: Ethmoidal (anterior/posterior), sphenopalatine, greater palatine. Kiesselbach's plexus (anterior septum bleed spot). Veins to facial/sphenopalatinee
Good supply = healthy tissues.
Appearance
Redness/veins if issues.
Aging
Reduced flow = thinner tissues.
Variations
More vascular in some
Why are you mouth breathing?
Deviated septum/turbinate hypertrophy = blockage, mouth breathing.
Aging Effects (!)
Collagen/elastin loss (30s+)= LLC softens, ligaments stretch, depressor pulls, maxilla resorbs, skin thins/sags.
Result:
Tip ptosis, longer nose, valve collapse, obstruction
Some Ethnic Variations (!)
Caucasian
Narrow, projected, thin skin, acute angles.
African
Wide base, flat bridge, thick skin, low projection, bulbous tip.
Asian
Flat / low bridge, wide ala, thick skin, less projection.
Middle Eastern
Long, humped dorsum, droopy tip predisposition.
Hispanic
Variable, often thicker skin, moderate width.
TLDR; Nose is bones (nasal, maxilla, ethmoid, vomer, palatine) + cartilages (septal, ULC, LLC) + muscles/ligaments/skin. Bad maxilla = shit projection; weak LLC = droop. Ethnicity varies width/projection, aging = sag. It's all interconnected.
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