Receptors of Smell

Q.

What is the three types of papillae?

Q.

What are olfactory lobes? Write any one function of them.

Q.

Which receptor is responsible for the sense of smell?

1. Photoreceptor

2. Mechanoreceptor

3. Proprioceptor

4. Olfactory receptor

Q.

Statement 1: Aromatic particles suspended in the air dissolve with mucus inside the nostrils to stimulate receptors and generate impulses.
Statement 2: Mucus glands present near olfactory nerve generate impulses of the smell and sends them to the brain.

1. Only statement 1 is correct

2. Only statement 2 is correct

3. Statement 1 supports statement 2

4. Both the statements are worng

Q.

The _______ receptors detect odour molecules.

1. photo

2. auditory

3. olfactory

4. gustatory

Q. Statement 1: There are more sensory receptors on our fingertips than elbow.

Statement 2: Skin contains different receptors to detect various sensations.

1. Only statement 1 is correct
2. Both the statements are correct
3. Only statement 2 is correct
4. Both the statements are incorrect

Q. The olfactory epithelium sends out impulses to the brain to give us a sense of smell

1. electric
2. electromagenetic
3. magnetic
4. sound

Q.

State whether the following statement is true or false. If false, rewrite the correct form of the statement by changing word/words.

(c) The olfactory chamber is the last part of the nasal chamber.

1. True
2. False

Q. Nasal cavity has large number of

1. Blood cells
2. Ciliated cells
3. Mast cells
4. Goblet cells

Q. Which of the following are chemoreceptors?

1. Taste receptors
2. Olfactory receptors
3. Auditory receptors
4. Both (a) and (b)

Q.

How do we get the smell of an incensed stick? (please describe the entire journey for 10 marks)

Q. Which cells of our nasal cavities are responsible for detecting various odours?

1. Olfactory receptor cells
2. Photoreceptor cells
3. Auditory receptor cells
4. Gustatory receptor cells

Q.

______ are paired lobes and functionally related to smell.

Q. The olfactory receptors in humans are located in :
(a) eyes
(b) tongue
(c) ears
(d) nose

Q. Sense of smell is perceived by

1. Pituitary
2. Hypothalamus
3. Olfactory lobe
4. Cerebrum

Q.

Which of the following is the tissue in the nose that helps in recognising smell?

1. Nasal Cavity

2. Mucus

3. Olfactory Epithelium

4. Hair

Q. The glands which help in absorbing odoriferous substances to stimulate olfactory nerve are

1. Cerumenous glands
2. Meibomian glands
   
3. Bowman's glands
4. Cowper's glands
5. Bidder's glands

Q.

Why is smell important to our sense of flavour?

Q. Jacobson's organ in man

1. Functions as excretory organ
2. Functions as gustatory organ
3. Is a vestigial organ
4. None of the above

Q. Which receptor is responsible for the sense of touch?

1. Olfactory
2. Auditory
3. Photo
4. Cutaneous

Q. Which among the following receptors are associated with the sense of smell?

1. Olfactory
2. Gustatory
3. Tactile
4. Cutaneous

Q. Nasal cavity is lined with _________ and small hair.

1. fat lobules
2. mucous membrane
3. dead cells
4. sweat pores