Question

question 23
1.2 pts
in the diagram above #3 indicates
olfactory bulb
olfactory stem cells
fibers of the olfactory nerves
cribiform plate of ethmoid bone

Explanation:

The cribiform plate of the ethmoid bone is a key anatomical structure in the nasal cavity. It is located in the roof of the nasal cavity and has small perforations (criba means sieve - like) through which the olfactory nerves (fila olfactoria) pass from the olfactory epithelium (where olfactory receptor neurons are located) to the olfactory bulb.

• The olfactory bulb (label 1) is a structure in the brain that receives input from the olfactory nerves.
• Olfactory stem cells (not typically labeled as 3 in standard diagrams) are located in the olfactory epithelium and are responsible for regenerating olfactory receptor neurons.
• Fibers of the olfactory nerves (fila olfactoria) pass through the cribiform plate (label 3) to reach the olfactory bulb.

Answer:

cribiform plate of ethmoid bone