Nasal fossa

Nasal fossa
Nasal fossa (profile): two cavities separated by a vertical plate. Air enters the nasal fossae through the nostrils and flows to an from the lungs.
Olfactory neurson: branch of the nerve related to smell.
Ethmoid bone: a bone at the base of the cranium crossed by divisions of the olfactory nerve.
Sphenoidal sinus: cavity of the sphenoid.
Entrance to Eustachian tube: opening of the tube connecting the middle ear and the pharynx.
soft palate: back part of the palate.
Oral cavity: the chamber of the mouth.
Hard palate: bony front part of the palate.
Upper lip: upper external part of the mouth, covering the teeth.
Nasal cartilage: flexible substance in the point of the nose.
Septal cartilage of nose: flexible substance of the septum.
Skin: organic external covering of the body.
Frontal sinus: cavity in the area of the forehead.

Photo :

EN : Human nose
FR : Nez humain
ES : Nariz humana


The visible part of the human nose is the protruding part of the face that bears the nostrils. The shape of the nose is determined by the ethmoid bone and the nasal septum, which consists mostly of cartilage and which separates the nostrils.