Nasal Anatomy

Aka: Nasal Anatomy, Nose Anatomy, Cribiform Plate, Kiesselbach's Area, Kiesselbach's Plexus, Little's Area, Glabella, Columella Nasi, Columella, Nasal Ala, Nasal Bridge

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II. Anatomy: External Structures

  1. Nare
    1. Nasal opening, divided into an anterior nare (nostril) and posterior nare (choanae)
  2. Nasal Vestibule
    1. Region at proximal nostril opening
  3. Nasal Ala
    1. Lateral wall of the nasal vestibule
  4. Alar Rim
    1. Anterior-lateral rim of the nostril extending from the Columella to lateral Nasal Ala
  5. Columella Nasi
    1. Anterior-most portion of septum that divides the two nostrils
    2. Forms the medial wall of each nasal vestibule
    3. Composed of a cartilage support that is covered with skin
  6. Nasal Bridge
    1. Superior aspect of the dorsal nose, just below the Glabella
  7. Glabella
    1. Portion of forehead between the eyebrows just superior to the Nasal Bridge

III. Anatomy: Support

  1. Bony Support
    1. Lateral: Maxilla
    2. Superior: Frontal Bone nasal process
    3. Central: Paired nasal bones
  2. Cartilage
    1. Cartilage extends from inferior edge of nasal bones
    2. Cartilage provides most of nasal pliable form

IV. Anatomy: Vascular Supply

  1. Ethmoid Artery (branch of ophthalmic artery)
    1. Supplies anterior and superior nose
    2. Supplies Kiesselbach's Area or plexus (Little's Area)
      1. Supplies anterior septum
      2. Most common site for Epistaxis
  2. Sphenopalatine Artery (branch of Maxillary artery)
    1. Supplies posterior nose

V. Anatomy: Nerve Supply

  1. Sensation: Branches of Cranial Nerve V (CN 5)
    1. Ethmoidal Nerve (V1): Anterior superior nose
    2. Infraorbital Nerve (V2): Anterior inferior septum
    3. Pterygopalatine Ganglion (V2): posterior nose
  2. Smell: Olfactory Nerves (Cranial Nerve 1)
    1. CN I forms Olfactory Bulb over Cribiform Plate
    2. Olfactory Bulb branches into many Olfactory Nerves
    3. Innervates olfactory mucosa in superior nose

VI. Anatomy: Images

  1. General
    1. entPharynxNasalPosteriorGrayBB1029.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
    2. entPharynxNasalPosteriorGrayBB1203.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  2. Bone
    1. entNasalBoneRtGrayBB155.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
    2. entNasalBoneRtInnerGrayBB156.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  3. Septal wall bone
    1. entNoseSeptumVomerBoneGrayBB173.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
    2. entNasalSeptumGrayBB195.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
    3. entNasalSeptumGrayBB853.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  4. Lateral wall bone
    1. entNoseLateralWallGrayBB196.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
    2. entNoseLateralGrayBB855.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
    3. entNoseLateralNoConchaGrayBB856.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  5. Cartilage
    1. entNasalSeptumCartilageGrayBB852.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
    2. entNasalSeptumCartilageGrayBB854.gifLewis (1918) Gray's Anatomy 20th ed (in public domain at Yahoo or BartleBy)
  6. Nerve
    1. See Olfactory Nerve (Cranial Nerve 1)

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Related Studies

Ontology: Nose (C0028429)

Definition (MSH) A part of the upper respiratory tract. It contains the organ of SMELL. The term includes the external nose, the nasal cavity, and the PARANASAL SINUSES.
Definition (FMA) *Subdivision of face which consists of the nasal skeleton, nasal septum and nasal cavity.
Definition (MSHCZE) Jedná se o část horních cest dýchacích. Ta obsahuje orgán ČICHU. Deskriptor zahrnuje také zevní část nosu, nosní dutiny a vedlejší nosní dutiny (SINUS PARANASALES).
Definition (UWDA) Subdivision of face which consists of the nasal skeleton, nasal septum and nasal cavity.
Definition (NCI_CDISC) A structure of special sense serving as an organ of the sense of smell and as an entrance to the respiratory tract. (NCI)
Definition (NCI) A structure of special sense serving as an organ of the sense of smell and as an entrance to the respiratory tract.
Definition (NCI_NCI-GLOSS) By or having to do with the nose.
Definition (CSP) specialized structure that serves as an organ of the sense of smell as well as part of the respiratory system; the term includes the external structure, through the nasal cavity, sinuses and up to the nasopharynx.
Concepts Body Part, Organ, or Organ Component (T023)
MSH D009666
SnomedCT 45206002, 260540009
HL7 NOSE, NASL, NOS
LNC LP7443-7
English Nose, Noses, Nasus, Structure of nose, Structure of nose, unspecified, noses, nasals, nasal structure, nose, nasal, NOSE, Nasal, Nasal structure, Nasal (qualifier value), Nasal structure (body structure), Nose, NOS, Nose (Nasal Passage)
Swedish Näsa
Czech nos
Finnish Nenä
Russian NOS, НОС
Croatian NOS
Latvian Deguns
Polish Nos
Japanese はな, 鼻
Norwegian Nese
Spanish estructura nasal (estructura corporal), estructura nasal, nariz, nasal (calificador), nasal, Nariz
French Nez
German Nase
Italian Naso
Dutch Neus
Portuguese Nariz
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Bridge of nose (C0225414)

Concepts Body Part, Organ, or Organ Component (T023)
SnomedCT 17176004
English bridge of nose, nose bridge, bridge nose, Structure of bridge of nose (body structure), Structure of bridge of nose, Bridge of nose
Spanish estructura del puente de la nariz (estructura corporal), estructura del puente de la nariz, puente de la nariz
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Columella nasi (C0225431)

Concepts Body Part, Organ, or Organ Component (T023)
SnomedCT 113249009, 244088003
English Columella, Skin of septum of nose, Columella structure (body structure), Columella structure, Skin of septum of nose (body structure), Columella nasi
Spanish columela nasal, columela, estructura de la columela (estructura corporal), estructura de la columela, piel del tabique nasal (estructura corporal), piel del tabique nasal
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Alar structure (C0458563)

Concepts Body Part, Organ, or Organ Component (T023)
SnomedCT 61913009
English Ala of nose, Nasal ala, Ala nasi, Alar structure (body structure), Alar structure
Spanish ala de la nariz, ala nasi, estructura alar (estructura corporal), estructura alar
Derived from the NIH UMLS (Unified Medical Language System)

Ontology: Glabella (point) (C2325142)

Concepts Body Location or Region (T029)
English Glabella (point)
Derived from the NIH UMLS (Unified Medical Language System)

Related Topics in Anatomy

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