Resp 1F

Front 1

What are the functions of the nasal cavity?

Back 1

1) warms incoming air 2) humidifies incoming air 3) traps particles

Front 2

Describe the posterior choanae

Back 2

Funnel shaped opening, connects nasal cavity w/ nasopharynx

Front 3

Describe the frontal sinus

Back 3

empties via ducts into frontal recess under middle turbinate.

Front 4

Describe the ethmoid sinus

Back 4

Anterior/middle empties into the middle meatus, posterior empties into superior meatus

Front 5

Describe the sphenoid sinus

Back 5

At base of skull above posterior nasal cavity/nasopharynx 2) drains int o sphenoethmoidal recess above/behind superior turbinate 3) drainage not effective - drains at level higher than sinuses

Front 6

Describe the maxillar sinus

Back 6

Largest sinus, drains into the middle meatus

Front 7

What are the functions of the paranasal sinus?

Back 7

1) ?lighen bones of head 2) ?more surface area for humidification [probably not important] 3) Production of mucous 4) resonating chambers for speech

Front 8

Describe infection in the frontal sinus

Back 8

May spread to ethmoid and maxillary sinuses b/c all drain into middle meatus area.

Front 9

What is the nasopharynx?

Back 9

The part of the pharynx posterior to the nasal cavity

Front 10

Describe the pharynx

Back 10

1) tube suspended from the base of the skull in front of cervical vertebrae 2) 3 subdivisions: Naso, oro, Laryngo/hypo

Front 11

What makes up the roof of the nasopharynx?

Back 11

!) sphenoid bone, nasophayngeal tonsil