Anatomia degli organi e degli apparati - Upper Respiratory track nose sinuses and pharynx

Respiratory system functions

• Gas exchange (moisturizing, filtration and warming of air also included)
• Phonation
• Olfaction

Respiratory division

• Upper respiratory track
• Lower respiratory track

External nose

Lined by skin

Nostrils

Bony framework (two nasal bones, frontal processes of maxillary bone and nasal part of frontal bone)

Cartilaginous framework (minor and major alar cartilages)

Muscles (procerus, nasalis, dilatator nasi anterior and the depressor septi)

Vascular supply: facial, ophthalmic and infraorbital

Nasal cavity

Start at the nostril (nasal vestibule)... End at the choanae

Respiratory system functions

• Gas exchange (moisturizing, filtration and warming of air also included)
• Phonation
• Olfaction

Respiratory division

• Upper respiratory track
• Lower respiratory track

External nose

Lined by skin

Nostrils

Bony framework (two nasal bones, frontal processes of maxillary bone and nasal part of frontal bone)

Cartilaginous framework (minor and major alar cartilages)

Muscles (procerus, nasalis, dilatator nasi anterior and the depressor septi)

Vascular supply: facial, ophthalmic and infraorbital

Nasal cavity

Start at the nostril (nasal vestibule)... End at the choanae