Smell and Taste - Structure and function

A is

• nasal vestibule (nostril)

• olfactory nerve

• olfactory cilia

• sinus

B is

• olfactory bulb

• nasal cavity

• olfactory cilia

• sinus

Tags

NGSS.MS-LS1-3

C is

• olfactory bulb

• nasal cavity

• olfactory cilia

• sinus

Tags

NGSS.MS-LS1-3

D is

• olfactory bulb

• olfactory neuron (cells)

• olfactory cilia

• support cells

E is

• olfactory bulb

• olfactory neuron (cells)

• olfactory cilia

• support cells

F is

• olfactory bulb

• olfactory neuron (cells)

• olfactory cilia

• support cells

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS1-3

G is

• olfactory bulb

• olfactory neuron (cells)

• olfactory cilia

• support cells

Tags

NGSS.MS-LS1-3

H is

• olfactory nerve

• olfactory neuron (cells)

• olfactory cilia

• olfactory bulb

Odor molecules enter through the (a)   where particles are filtered out. They pass through a large chamber behind the nose called the ​ (b)   Here, air is warmed and humidified before it passes into the lungs. The molecules travel to the roof of the cavity to a region called the​ (c)   which features millions of sensory receptors called ​ (d)   The molecules then bind to receptors found on hair-like ​ (e)  

• nasal vestibule
• nasal cavity
• olfactory epithelium
• olfactory neurons
• olfactory cilia

Scent molecules bind to receptors found on hair-like (a)   The activated sensory receptors generate ​ (b)   This impulse travels along axons to a small region called the ​ (c)   The stimulus is then relayed along the ​ (d)   which travels to the brain. A brain region called the ​ (e)   interprets the nerve impulses as smell.

• olfactory cilia
• nerve impulses (action potential)
• olfactory bulb
• olfactory nerve
• olfactory cortex

Tags

NGSS.MS-LS1-3