Smell Flashcards
1
Q
Olfactory bulb is located
A
Ethmoid Bone
Olfactory bulb “fed” by the olfactory nerves
2
Q
Looses sense of smell
A
Fracture of CRIBRIFORM plate of ethmoid bone
any cut or break of Olfactory Nerves
3
Q
Receptor Cells of Olfaction
A
Located on olfactory epithelium CN I (Olfactory) Carries information to Olfactory Bulb
4
Q
Hyposmia
A
Low smell
5
Q
Anosmia
A
No smell
6
Q
What order neuron
A
second order from olfactory tract –> prepiriform cortex (areas 3,2,1?)
7
Q
AP
A
Stimulus activates Receptor cells
- > activation of G proteins
- > activation of adenylate cyclase
- > Increase cAMP
- > Open Na Channel
- > AP is generated and propagated
8
Q
Olfactory epithelium CN
A
CN 1 & V (trigeminal)
CN V detects NOXIOUS or painful odors like ammonia (NH)
9
Q
Place nasal airways, tubes, catheters how?
A
lubricated
advanced at an angle perpendicular to face
Avoid injury - VERY Vascular.
use vasoconstrictors
10
Q
How many arteries are in nasal cavity
A
four
