Sinuses Flashcards
1
Q
what are sinuses
A
mucous membrane-lined spaces in certain cranial and facial bones
- continuous lining of nasal cavity
2
Q
functions of sinuses
A
- lighten the skull bones
- humidifying and heating inhaled air
- add resonance to voice
3
Q
what are maxillary sinuses
A
- pyramidal in shape
- lie on either side of nasal cavity - below orbits
4
Q
what are frontal sinuses
A
- irregular + varied in shape and size
- above nasal cavity + orbits
- posterior to superciliary arches to frontal bone
5
Q
what are ethmoid sinuses
A
- numerous small cavities - irregular in shape
- between medial wall of orbits and nasal cavity
6
Q
what are sphenoidal sinuses
A
- cuboid in shape
- lie within body of sphenoidal bone below sella turcica
7
Q
sinus belonging to the jaw
A
maxillary
8
Q
sinus in front/ forehead
A
frontal
9
Q
wedge shaped like sinus
A
sphenoid
10
Q
sieve-like sinus
A
ethmoid
