What fits this description? “It is the entrance to the nasal chamber supported by cartilage”
Respuesta
Nostrils.
False nostrils.
Pailla.
Pregunta 3
Pregunta
Tick the purposes of the nose:
Respuesta
Humidifying and heating of inhaled air.
Regulation of air pressure.
Immune protection.
To help smell what foods are safe to eat.
To sneeze with.
Pregunta 4
Pregunta
There are coiled bones in the nasal chamber, covered in mucus secreting membrane with cilia and olfactory cells. True or false?
Respuesta
True
False
Pregunta 5
Pregunta
How many olfactory receptor cells does a human have?
Respuesta
6 Million.
100 Million.
220 Million.
20 Million.
Pregunta 6
Pregunta
Tick the correct cells that are in the common mammalian nose:
Respuesta
Olfactory receptor cells.
Supporting cells.
Basal cells.
Epithelium cells.
Dendrite cells.
Pregunta 7
Pregunta
What is the role of the supporting cells?
Respuesta
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.
Pregunta 8
Pregunta
What is the role of the basal stem cells?
Respuesta
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.
Pregunta 9
Pregunta
What is the role of the olfactory glands?
Respuesta
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.
Pregunta 10
Pregunta
What is another name for the olfactory cilia?
Respuesta
Olfactory hairs.
Olfactory neurons.
Olfactory basal membrane.
Pregunta 11
Pregunta
Chemicals that have an odour that stimulate the olfactory hairs are called?
Respuesta
Odourants.
Odouras chemicals.
Odouras gasses.
Pregunta 12
Pregunta
Which of these are true of the olfactory nerve?
Respuesta
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.
Pregunta 13
Pregunta
Which of these are true about the cribriform plate?
Respuesta
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.
Pregunta 14
Pregunta
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?