What fits this description? “It is the entrance to the nasal chamber supported by cartilage”
Answer
Nostrils.
False nostrils.
Pailla.
Question 3
Question
Tick the purposes of the nose:
Answer
Humidifying and heating of inhaled air.
Regulation of air pressure.
Immune protection.
To help smell what foods are safe to eat.
To sneeze with.
Question 4
Question
There are coiled bones in the nasal chamber, covered in mucus secreting membrane with cilia and olfactory cells. True or false?
Answer
True
False
Question 5
Question
How many olfactory receptor cells does a human have?
Answer
6 Million.
100 Million.
220 Million.
20 Million.
Question 6
Question
Tick the correct cells that are in the common mammalian nose:
Answer
Olfactory receptor cells.
Supporting cells.
Basal cells.
Epithelium cells.
Dendrite cells.
Question 7
Question
What is the role of the supporting cells?
Answer
Physical support, nourishment and electrical insulation for olfactory receptor cells.
To undergo mitosis to replace olfactory receptor cells.
To produce mucus that is used to dissolve odour molecules so that transduction may occur.
Question 8
Question
What is the role of the basal stem cells?
Answer
Physical support, nourishment and electrical insulation for olfactory receptor cells.
To undergo mitosis to replace olfactory receptor cells.
To produce mucus that is used to dissolve odour molecules so that transduction may occur.
Question 9
Question
What is the role of the olfactory glands?
Answer
Physical support, nourishment and electrical insulation for olfactory receptor cells.
To undergo mitosis to replace olfactory receptor cells.
To produce mucus that is used to dissolve odour molecules so that transduction may occur.
Question 10
Question
What is another name for the olfactory cilia?
Answer
Olfactory hairs.
Olfactory neurons.
Olfactory basal membrane.
Question 11
Question
Chemicals that have an odour that stimulate the olfactory hairs are called?
Answer
Odourants.
Odouras chemicals.
Odouras gasses.
Question 12
Question
Which of these are true of the olfactory nerve?
Answer
Formed from small unmyelinated axons.
By the first cranial nerve.
Have slow conduction velocity and support provided by Schwann cells.
Part of the ethmoid bone.
Contain multiple small foramina through which the olfactory nerve fibres transverse.
Question 13
Question
Which of these are true about the cribriform plate?
Answer
Part of the ethmoid bone.
Contain multiple small foramina through which the olfactory nerve fibres transverse.
Have slow conduction velocity and support provided by Schwann cells.
By the first cranial nerve.
Question 14
Question
Mitral cells are a second order neurons contracted by olfactory nerve fibres at glomerular layer of the bulb, is it true that their axons project to higher brain areas including the olfactory cortex or not?