Sense Organs Quiz Questions And Answers
You must have learned about sense organs in primary school. But do you know about these organs in detail? Let's check your knowledge with this sense organs quiz that is given below. As we know, the sense organs are the organs in the body that respond to external stimuli by conveying impulses to the sensory nervous system. These organs are responsible for our perception of sounds, smell, sight, taste, and touch. Try this short and simple quiz today and see how much you remember about your organs.
- 1.
The transparent window at the front of the eye covered in tears is called _________.
- A.
Cornea
- B.
Iris
- C.
Retina
- D.
Pupil
Correct Answer
A. CorneaExplanation
The transparent window at the front of the eye covered in tears is called the cornea. The cornea is responsible for refracting light and protecting the inner structures of the eye. It plays a crucial role in focusing light onto the retina, which then sends signals to the brain for visual perception. The cornea also helps to maintain the shape of the eye.Rate this question:
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- 2.
Clear watery fluid that circulates in the front part of the eye and keeps constant pressure within the eye is __________.
- A.
Cornea
- B.
Aqueous humor
- C.
Lens
- D.
Pupil
Correct Answer
B. Aqueous humorExplanation
The clear watery fluid that circulates in the front part of the eye and maintains constant pressure within the eye is called aqueous humor. This fluid is produced by the ciliary body and is responsible for providing nutrients to the cornea and lens, as well as maintaining the shape of the eye. It also helps in maintaining the intraocular pressure, which is essential for proper functioning of the eye.Rate this question:
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- 3.
The circular opening in the colored part of the eye opens and contracts to let in more or less light.
- A.
Retina
- B.
Choroid
- C.
Pupil
- D.
Cornea
Correct Answer
C. PupilExplanation
The circular opening in the colored part of the eye is called the pupil. The pupil controls the amount of light that enters the eye by opening and contracting. When there is a lot of light, the pupil contracts to reduce the amount of light entering the eye. Conversely, in dim light, the pupil opens up to allow more light to enter the eye.Rate this question:
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- 4.
Which is the colored part of the eye?
- A.
Iris
- B.
Retina
- C.
Aqueous humor
- D.
Cornea
Correct Answer
A. IrisExplanation
The colored part of the eye is called the iris. It is the part of the eye that gives it its color and controls the size of the pupil, which regulates the amount of light that enters the eye. The iris is made up of muscles that contract and expand to adjust the size of the pupil in response to different lighting conditions.Rate this question:
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- 5.
This part focuses on light, changing shape as it takes in reflected light from objects near and far.
- A.
Iris
- B.
Pupil
- C.
Lens
- D.
Cornea
Correct Answer
C. LensExplanation
The lens is responsible for changing shape as it takes in reflected light from objects near and far. The lens plays a crucial role in focusing light onto the retina, allowing us to see clearly. It adjusts its shape to accommodate for the distance of objects, ensuring that the light rays converge at the right point on the retina. This adjustment of the lens helps in the process of accommodation, which enables us to see objects at different distances with clarity.Rate this question:
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- 6.
A clear jelly that light passes through to the retina.
- A.
Iris
- B.
Vitreous
- C.
Choroid
- D.
Pupil
Correct Answer
B. VitreousExplanation
The vitreous is a clear jelly-like substance that fills the space between the lens and the retina in the eye. It helps maintain the shape of the eyeball and allows light to pass through to the retina, which is responsible for capturing images and sending them to the brain for processing. The other options, iris, choroid, and pupil, do not fit the description of a clear jelly that light passes through to the retina.Rate this question:
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- 7.
The inner lining at the back of the eye is called ________.
- A.
Pupil
- B.
Retina
- C.
Vitreous
- D.
Cornea
Correct Answer
B. RetinaExplanation
The inner lining at the back of the eye is called the retina. The retina is a thin layer of tissue that contains light-sensitive cells called photoreceptors. These cells convert light into electrical signals that are then sent to the brain through the optic nerve, allowing us to see. The retina also contains other important cells and structures that help with visual processing and clarity of vision.Rate this question:
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- 8.
Which sense organ is primarily responsible for detecting odors and sending signals to the brain for interpretation?
- A.
Eyes
- B.
Ears
- C.
Nose
- D.
Tongue
Correct Answer
C. NoseExplanation
Nose: This is the correct answer. The nose is primarily responsible for detecting odors. It contains olfactory receptors that can detect various scents, and these receptors send signals to the brain, allowing us to perceive and interpret different odors.Rate this question:
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- 9.
The outermost part of the ear is made of cartilage that connects to the auditory tube.
- A.
Eardrum
- B.
Cochlea
- C.
Pinna
- D.
Auricle
Correct Answer
C. PinnaExplanation
The outermost part of the ear is called the pinna, also known as the auricle. It is made of cartilage and is the visible part of the ear that protrudes from the head. The pinna helps to collect and direct sound waves into the ear canal. It also plays a role in localizing the source of sounds. The auditory tube, on the other hand, is a tube that connects the middle ear to the back of the throat and helps to equalize pressure. The eardrum and cochlea are located in the inner part of the ear and are not part of the outermost structure made of cartilage.Rate this question:
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- 10.
A membrane in the inner ear that vibrates is known as __________.
- A.
Eardrum
- B.
Cochlea
- C.
Pinna
- D.
Auricle
Correct Answer
A. EardrumExplanation
The eardrum, also called the tympanic membrane, is a thin, oval membrane located between the outer and middle ear. It vibrates in response to sound waves that travel through the ear canal, transmitting these vibrations to the middle ear bones. These vibrations are then converted into nerve impulses, allowing us to perceive sound. The eardrum plays a crucial role in the process of hearing by amplifying and transmitting sound vibrations to the inner ear.Rate this question:
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- 11.
Three tiny bones in the inner ear that send stimuli to the cochlea are:
- A.
Pinna, auditory tube, semicircular canals
- B.
Hammer, anvil, stirrup
- C.
Vitreous, aqueous, retina
- D.
Pinna, auricle, eardrum
Correct Answer
B. Hammer, anvil, stirrupExplanation
The three tiny bones in the inner ear that send stimuli to the cochlea are called the hammer, anvil, and stirrup. These bones, also known as the ossicles, are located in the middle ear and are responsible for transmitting sound vibrations from the eardrum to the cochlea. The hammer (malleus) is connected to the eardrum and transfers vibrations to the anvil (incus), which in turn transfers them to the stirrup (stapes). The stirrup then transfers the vibrations to the fluid-filled cochlea, where they are converted into electrical signals that can be interpreted by the brain as sound.Rate this question:
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- 12.
Name the spiral-shaped part that transforms sound into nerve impulses and sends them to the brain.
- A.
Semicircular canals
- B.
Cochlea
- C.
Pinna
- D.
Auricle
Correct Answer
B. CochleaExplanation
The cochlea is the spiral-shaped part of the inner ear that is responsible for transforming sound vibrations into nerve impulses. It contains tiny hair cells that are stimulated by the vibrations and convert them into electrical signals. These signals are then sent to the brain through the auditory nerve, allowing us to perceive and interpret sounds. The semicircular canals, pinna, and auricle are all parts of the ear, but they do not directly play a role in transforming sound into nerve impulses.Rate this question:
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- 13.
Fluid-filled tubes attached to the cochlea and nerves in the inner ear that send messages about balance and head position to the brain are called _________.
- A.
Eustachian tube
- B.
Auditory canals
- C.
Semicircular canals
- D.
None of the above
Correct Answer
C. Semicircular canalsExplanation
The fluid-filled tubes attached to the cochlea and nerves in the inner ear that send messages about balance and head position to the brain are called semicircular canals. These canals are responsible for detecting rotational movements of the head and help us maintain balance and equilibrium. They are arranged in three planes and work together to provide information to the brain about our body's orientation in space. The eustachian tube is responsible for equalizing pressure in the middle ear, while the auditory canals are passages that lead from the outer ear to the middle ear.Rate this question:
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- 14.
Which of these organs is used to drain fluid from the inner ear into the throat?
- A.
Auditory tube
- B.
Eustachian tube
- C.
Semicircular canal
- D.
Auditory canals
Correct Answer
B. Eustachian tubeExplanation
The eustachian tube is used to drain fluid from the inner ear into the throat. It connects the middle ear to the back of the throat and helps maintain equal air pressure on both sides of the eardrum. When we swallow or yawn, the eustachian tube opens briefly, allowing fluid to drain out of the ear and preventing the build-up of pressure. This helps in maintaining proper hearing and balance.Rate this question:
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- 15.
This is a muscle in the mouth that is covered with pink mucosa and tiny buds. It helps in chewing food and sending it down the throat. Guess its name.
- A.
Papillae
- B.
Tongue
- C.
Teeth
- D.
None of the above
Correct Answer
B. TongueExplanation
The tongue is a muscle in the mouth that is covered with pink mucosa and tiny buds. It plays a crucial role in chewing food and pushing it down the throat. The papillae are the tiny buds on the surface of the tongue that contain taste buds, but they are not the main muscle responsible for chewing and swallowing. Teeth, on the other hand, are not a muscle but rather hard structures used for biting and chewing food. Therefore, the correct answer is tongue.Rate this question:
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- 16.
Adults have __________ in the anterior nasal passage.
- A.
Nasal hairs
- B.
Nasal root
- C.
Nasal spine
- D.
Mucus
Correct Answer
A. Nasal hairsExplanation
Adults have nasal hairs in the anterior nasal passage. Nasal hairs, also known as vibrissae, are small, coarse hairs that line the inside of the nose. They act as a filter, trapping dust, pollen, and other particles, preventing them from reaching the lungs. Nasal hairs also help to humidify and warm the air as it enters the nasal passages, protecting the delicate tissues inside. Overall, nasal hairs play an important role in maintaining the health and functionality of the respiratory system.Rate this question:
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- 17.
The top of the nose is called ________.
- A.
Nasal bridge
- B.
Nasal spine
- C.
Nasal hairs
- D.
Nasal part
Correct Answer
A. Nasal bridgeExplanation
The top of the nose is called the "nasal bridge." It is the elevated part of the nose that connects the two nasal bones and often forms a slight curve or bridge shape on the human face.Rate this question:
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- 18.
The thin projection of bone at the midline that holds the cartilage is termed as ______.
- A.
Nasal hairs
- B.
Nasal root
- C.
Nasal spine
- D.
Nasal cavity
Correct Answer
C. Nasal spineExplanation
The thin projection of bone at the midline that holds the cartilage is called the nasal spine.Rate this question:
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- 19.
Which is the body's largest organ?
- A.
Brain
- B.
Skin
- C.
Large intestine
- D.
Liver
Correct Answer
B. SkinExplanation
The skin is the body's largest organ. It serves as a protective barrier against the external environment, helps regulate temperature, and plays a vital role in sensory perception. The skin consists of several layers, including the epidermis, dermis, and subcutaneous tissue, and it performs various functions, such as protecting the body from pathogens, preventing water loss, and housing sensory receptors for touch, pressure, heat, and cold.Rate this question:
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- 20.
Which of these are referred to as the layers of the skin?
- A.
Dermis and epidermis
- B.
Hair and sweat glands
- C.
Pores and sebarous glands
- D.
None of the above
Correct Answer
A. Dermis and epidermisExplanation
The layers of the skin are referred to as the dermis and epidermis. The dermis is the inner layer of the skin, composed of connective tissue, blood vessels, and nerves. It provides support and nourishment to the epidermis. The epidermis is the outer layer of the skin, composed of several sublayers of cells. It acts as a protective barrier against external factors and helps regulate body temperature.Rate this question:
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Jul 16, 2024Quiz Edited by
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Expert Reviewed by
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Apr 22, 2011Quiz Created by
Paxalles