Tag: the unique world of insects and animals
Questions Related to the unique world of insects and animals
Which of the following adjust the size of pupil?
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Sphincter muscles
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Opthalmoscope
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Iris dilator
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Both A and C
The iris is the coloured circular structure concentrically surrounding the center of the eye, the pupil, which appears to be black. The size of the pupil, which controls the amount of light entering the eye, is adjusted by the iris's dilator and sphincter muscles. A device known as an ophthalmoscope is used to see inside the eye. Therefore, the correct answer is option B.
Receptors of pressure present in deep layers of skin are
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Krause's end bulb
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Meissner's corpuscles
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Corpuscles of Ruffini
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Pacinian corpuscles
Meissner corpuscles are one of the three types of cutaneous receptors which are sensitive to fine touch. Three types are cutaneous receptors are sensitive to pressure which are namely Pacinian corpuscles, Ruffini endings and Krause end bulbs. Out of these, onion-shaped Pacinian corpuscles lie deep inside the dermis. The Ruffini endings are present deeper in epidermis near the base while the Krause end bulbs are present in specialized regions only, for example, conjunctiva of eyes, mucous membrane of lips and tongue etc. Thus, the correct answer is option D.
Tactile receptors in mammals are maximum on
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Body
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Limbs
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Face
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Head
Which of the following organ senses temperature?
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Tongue
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Nose
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Skin
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None of the above
- 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?
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Baroreceptors
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Chemoreceptors
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Sensoryreceptors
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Baroreceptors and Chemoreceptors
Which of the following detect mechanical energy associated with, changes in pressure, position, or acceleration?
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Chemoreceptors
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Photoreceptors
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Mechanoreceptors
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Thermoreceptors
(A)Chemoreceptor - Receptor that responds to chemicals.
What is otorhinolaryngology?
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Care of ear
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Study of larynx
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Study of ear and larynx
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Study of diseases of the ear, nose and throat
- 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 ?
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Human skin
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Lateral line of fishes
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Statocysts of arthropods
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All of these
Mechanoreceptor - Receptor that responds to pressure,touch, position, acceleration.
Which of the following have taste buds?
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Palate
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Mucous lining
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Tongue
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None of the above
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.
The stato-acoustic receptor responds to changes in the ..................
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Light and pressure
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Pressure and touch
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Pain and pressure
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Sound and equilibrium.
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.