Tag: windows of knowledge

Questions Related to windows of knowledge

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

biology windows of knowledge human nose nose nose : the olfactory organ

  1. Cerumenous glands

  2. Meibomian glands

  3. Bowman's glands

  4. Cowper's glands

  5. Bidder's glands

Show answer
Correct Option: C
Explanation:

Bowman's glands are branched tubular glands in the olfactory mucous membrane. The structure of the Bowman's glands consists of an acinus in the lamina propria and a secretory duct going out through the olfactory epithelium. Bowman's glands secrete proteins, such as lysozyme, amylase and IgA similar to serous glands. 

Bowman's glands occur in

biology windows of knowledge human nose nose nose : the olfactory organ

  1. Seminiferous tubules

  2. Pleural membrane

  3. Olfactory membrane

  4. Cardiac muscles

Show answer
Correct Option: C
Explanation:
Bowman's glands are also known as olfactory glands. They are present in olfactory mucosa of nasal cavity beneath the olfactory epithelium. The olfactory glands contain a secretory duct. The olfactory membrane is located over thick connective tissue called lamina propria. The olfactory glands secrete a mucous substance that protects the nasal epithelium from getting dry out.
So, the correct answer is 'Olfactory membrane'.

Some persons have an innate sense of direction. It is due to magnetic sensitivity of

biology windows of knowledge human nose nose nose : the olfactory organ

  1. Cochlea

  2. Corpora quadrigemina

  3. Nose

  4. Pinna

Show answer
Correct Option: C
Explanation:

  •  Humans possess a tiny, shiny crystal of magnetite in the ethmoid bone, located between your eyes, just behind the nose.
  •  Magnetite is a magnetic mineral also possessed by homing pigeons, migratory salmon, dolphins, honeybees, and bats is a tiny compass needle, allowing them to orient themselves in the earth's magnetic field and swim down to their happy home in the mud. Hence, Some persons have an innate sense of direction. It is due to the magnetic sensitivity of the Nose.
So, the correct answer is 'Nose'.

Glands whose secretions pick up odoriferous substances to stimulate olfactory nerves are

biology windows of knowledge human nose nose nose : the olfactory organ

  1. Bidder's glands

  2. Cowper's glands

  3. Meibomian glands

  4. Bowman's glands

  5. Ceruminous glands

Show answer
Correct Option: D
Explanation:
Bowman's glands are olfactory glands present in olfactory mucosa below olfactory epithelium. They contain secretory vesicles. They secrete mucous substances that prevent the nasal epithelium from getting dry out. The secretions from these glands pick up odoriferous substances i.e. the substances that have a particular smell, and stimulate olfactory nerves which carry the information related to smell to the brain.
So, the correct answer is 'Bowman's glands'.

Olfactory membrane is connected with __________.

biology windows of knowledge human nose nose nose : the olfactory organ

  1. Taste

  2. Vision

  3. Smell

  4. Hearing

Show answer
Correct Option: C
Explanation:
A. Taste is perceived by taste buds present on tongue.
B. Vision is perceived by photoreceptor cells present in retina and they may be cones (for daylight vison and coloured vision) or rods (for low light vision).
C. Smell is perceived by olfactory membrane which is a structure present in upper part of nasal cavity.
D. Hearing is perceived by organ of Corti in middle ear which contains many hair cells that are sensitive to sounds or vibrations.
So, the correct answer is 'Smell'.

Both olfactory receptors and sound receptors have cilia, and they both

biology windows of knowledge human nose nose nose : the olfactory organ

  1. are chemoreceptors

  2. are mechanoreceptors

  3. initiate nerve impulses

  4. all of these

Show answer
Correct Option: C
Explanation:

 Both olfactory receptors and sound receptors have cilia. The different senses are taste, smell, vision and auditory senses. In humans, specialized sensory receptors are present in distinct sense organs that detect the sensory stimuli and transmit the stimuli as nerve impulses to the brain.


So, the correct answer is 'initiate nerve impulses'.

Anosmia is _____

biology windows of knowledge human nose nose nose : the olfactory organ

  1. Loss of the sense of taste

  2. Loss of the sense of smell

  3. Loss of the sense of sound

  4. Loss of the sense of touch

Show answer
Correct Option: B
Explanation:

The following are disorders of olfaction: Anosmia inability to smell. ysosmia things smell different from memory or expectation. Hyperosmia an abnormally acute sense of smell. Hyposmia decreased ability to smell.

A person aged 21 will probably lose _____ of their smell at 22.

biology windows of knowledge human nose nose nose : the olfactory organ

  1. None

  2. 50%

  3. 1%

  4. 5%

Show answer
Correct Option: C
Explanation:

Fact:
On increasing age,olfactory sensation decreases. In female humans, the sense of olfaction is strongest around the time of ovulation, significantly stronger than during other phases of the menstrual cycle and stronger than the sense in males.

The ability to perceive pheromones is related to the sense of

biology windows of knowledge human nose nose nose : the olfactory organ

  1. audition

  2. gustation

  3. equilibrium

  4. olfaction

Show answer
Correct Option: D
Explanation:

(A)Audition is the sense of hearing.

(B)Gustation is the sense of tasting.
(C)Equilibrium is the equalizing process.
(D)Olfaction is the sense of smell.  It should be noted that some pheromones are detected by the main olfactory system.

So, the correct option is 'Olfaction'.

Cranial nerves carries taste information from

biology windows of knowledge human tongue organ of taste tongue : the organ of taste

  1. Tongue

  2. Palate

  3. Epiglottis

  4. All of the above

Show answer
Correct Option: D
Explanation:
  • The taste receptors are located around the small structures known as papillae found on the upper surface of the tongue, soft palate, upper oesophagus, the cheek, and epiglottis.
  • The cranial nerves innervate these sites and carry taste information to the brain.
  • Hence Cranial nerves carry taste information from Tongue, Palate and Epiglottis.
  • So, the correct answer is 'All the above'.