Olfactory System and Functions

The video tutorial explores the anatomy and function of the nasal system, focusing on the role of nasal hair and mucus in protecting the respiratory tract. It delves into the olfactory system, explaining how smell is processed through olfactory receptor cells and the regeneration role of basal cells. The tutorial also covers the olfactory glands' function and the system's ability to distinguish thousands of chemical stimuli.

What is the primary structural component of the nose?

• Muscle

• Cartilage

• Bone

• Tissue

What is the function of the hair in the nasal cavity?

• To support the nasal structure

• To produce mucus

• To trap dirt particles

• To enhance smell

What is the primary function of mucus in the nasal cavity?

• To support nasal structure

• To trap microorganisms

• To enhance taste

• To produce sound

What happens to the mucus produced in the nasal cavity?

• It is absorbed by the nasal tissues

• It evaporates into the air

• It is expelled through sneezing

• It is swallowed and goes down the esophagus

Which bone is primarily responsible for forming the nasal conchae?

• Ethmoid bone

• Frontal bone

• Nasal bone

• Maxillae

Where are the olfactory receptor cells located?

• Inside the mouth

• Deep inside the ear

• On the skin surface

• Adjacent to the outer environment

What is the technical term for the sense of smell?

• Gustation

• Olfaction

• Tactile

• Auditory

Why are olfactory receptor cells more prone to damage?

• They are located deep inside the body

• They are directly exposed to the outer environment

• They are not protected by mucus

• They are not connected to the brain

What is the role of basal cells in the olfactory system?

• To trap odor molecules

• To produce mucus

• To regenerate damaged olfactory cells

• To enhance smell

How many different chemical stimuli can the olfactory system distinguish?

• 4000 to 6000

• 1000 to 2000

• 2000 to 4000

• 500 to 1000