Tag: evs

Questions Related to evs

Which of the following organ senses temperature?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Tongue

  2. Nose

  3. Skin

  4. None of the above

Show answer
Correct Option: C
Explanation:
  • Sensitivity to temperature is a skin sense that is related to the human need to maintain internal temperature balance or thermal homeostasis. 
  • When the body becomes hotter than the normal temperature the sweat glands releases sweat which in turns cools the skin as it evaporates. This helps the lower internal temperature of the body
  • Hence the organ which senses temperature is skin.
  • So, the correct answer is 'Skin'.

$CO _{2}$, $pH$ and $O _{2}$ level in the blood is detected by which receptors?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Baroreceptors

  2. Chemoreceptors

  3. Sensoryreceptors

  4. Baroreceptors and Chemoreceptors

Show answer
Correct Option: B
Explanation:
Chemoreceptors present in the carotid body, venacava and aortic sinus and responsible for receiving change in chemical composition of blood. CO$ _2$, pH and O$ _2$ levels in the blood are detected by the central chemoreceptors. Changes in CO$ _2$ level in blood is detected by chemoreceptors present in carotid bodies, O$ _2$ level is detected by the chemoreceptors present in Aortic bodies and changes in pH is detected by chemoreceptors present in the venacava and also that of carotid bodies and aortic bodies.
So, the correct answer is B.

Which of the following detect mechanical energy associated with, changes in pressure, position, or acceleration?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Chemoreceptors

  2. Photoreceptors

  3. Mechanoreceptors

  4. Thermoreceptors

Show answer
Correct Option: C
Explanation:

(A)Chemoreceptor - Receptor that responds to chemicals.

(B)Photoreceptor - Receptor that responds to light.
(C)Mechanoreceptor - Receptor that responds to pressure, position, acceleration.
(D)Thermoreceptor -Receptor that responds to heat.
So, the correct option is 'Mechanoreceptor'.

What is otorhinolaryngology?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Care of ear

  2. Study of larynx

  3. Study of ear and larynx

  4. Study of diseases of the ear, nose and throat

Show answer
Correct Option: D
Explanation:
  • Otorhinolaryngology is a surgical subspecialty within medicine that deals with the conditions of the ear, nose and throat (ENT) and related structures of the head and neck. It is also called as otolaryngology. Otorhinolaryngologist treats the disease of the ear, nose, throat, base of the skull and for the surgical management of cancers and benign tumours of the head and neck. Hence, otorhinolaryngology is the study of disease of the ear, nose and throat.
  • So, the correct answer is 'study of disease of the ear, nose and throat'.

Which of the following contains mechanoreceptors ?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Human skin

  2. Lateral line of fishes

  3. Statocysts of arthropods

  4. All of these

Show answer
Correct Option: D
Explanation:

Mechanoreceptor - Receptor that responds to pressure,touch,  position, acceleration.

Example- Human skin, lateral line of fishes, statocysts of arthropods.

So, the correct option is 'All of these'.

Which of the following have taste buds?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Palate

  2. Mucous lining

  3. Tongue

  4. None of the above

Show answer
Correct Option: C
Explanation:

Taste buds are sensory organs that are found on your tongue and allow you to experience tastes that are sweet, salty, sour, and bitter. Taste buds have very sensitive microscopic hairs called microvilli. Those tiny hairs send messages to the brain about how something tastes, whether if it is sweet, sour, bitter, or salty.

So, the correct answer is 'Tongue'.

The stato-acoustic receptor responds to changes in the ..................

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Light and pressure

  2. Pressure and touch

  3. Pain and pressure

  4. Sound and equilibrium.

Show answer
Correct Option: D
Explanation:

Statio-acoustic receptors are meant for both sensory functions, i.e., hearing (sound) and maintenance of body balance (equilibrium) of the body. These receptors generate stimuli in response to sound and gravity. The function of  stato-acoustic receptor is hearing and balancing.


The following respond to pressure

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Meissner's corpuscle

  2. Pacinian corpuscle

  3. Bulbs of Krause

  4. None of the above

Show answer
Correct Option: B
Explanation:

There are the different type of stimulus receptors they are mechanoreceptors, chemoreceptors, thermoreceptors, photoreceptors, and electroreceptors. Here, the pressure is a type of mechanoreceptors. Pacinian corpuscle commonly found in deeper tissues of the tendons and ligaments which senses deep pressure. Meissner's corpuscle senses light touch and motion. Bulbs of Krause senses cold and low-frequency vibration. 

So, the correct answer is option B.

Which of the following receptor classifications could be considered enteroreceptors?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Chemoreceptors

  2. Photoreceptors

  3. Visceroreceptors

  4. Both (a) and (c)

Show answer
Correct Option: D
Explanation:
  • Enteroceptor - any receptor that responds to stimuli inside the body.
  • Chemoreceptors: consists of aortic and carotid bodies. Aortic body detects changes in blood oxygen and carbon dioxide, but not pH, while carotid body detects all three.
  • visceroreceptors group of receptors that includes those located in visceral organs. Their stimulation gives rise to poorly localized and ill-defined sensations or to pain. In hollow visceral organs, they are stimulated principally by excessive contraction or by distention.

Since both chemoreceptors and visceroreceptors respond to stimuli inside the body, these can be categorized under enteroreceptors.

So, the correct answer is 'Both (a) and (c)'.

Which of the following are chemoreceptors?

evs the unique world of insects and animals sleeping time animal senses sense organs in animals sense organs in humans

  1. Taste receptors

  2. Olfactory receptors

  3. Auditory receptors

  4. Both (a) and (b)

Show answer
Correct Option: D
Explanation:

Chemoreceptors are the receptors that respond to chemicals. Both taste and smell are related to chemical receptors. Therefore, they are chemoreceptors.

So, the correct option is 'Both (a) and (b)'.