Sense organs | Mock Test | Staff Nurse | Guides Academy

Sense organs - Skin, eye, ear, nose and tongue. Physiology of vision, hearing, smell, touch, taste and equilibrium.

The sense organs are specialized organs that help us perceive and respond to the world around us through the five senses: sight, hearing, smell, taste, and touch. The main sense organs are:
👁️ Eyes – detect light and allow us to see.
👂 Ears – help in hearing and maintaining balance.
👃 Nose – senses smell and also aids in breathing.
👅 Tongue – detects different tastes: sweet, sour, salty, bitter, and umami.
🤲 Skin – senses touch, pressure, pain, and temperature.
These organs send signals to the brain through sensory nerves, enabling us to interact safely and effectively with our environment. Proper care of sense organs is essential for overall health and well-being.

Time: 15:00

Which layer of the eye contains the photoreceptor cells, rods and cones?

[a] Sclera

[b] Cornea

[c] Retina

[d] Choroid

Which type of photoreceptor is responsible for color vision and functions best in bright light?

[a] Rods

[b] Cones

[c] Bipolar cells

[d] Ganglion cells

The auditory ossicles (malleus, incus, and stapes) are located in which part of the ear?

[a] Outer ear

[b] Inner ear

[c] Auditory canal

[d] Middle ear

The sense of dynamic equilibrium, related to rotational movements of the head, is detected by receptors in the:

[a] Cochlea

[b] Semicircular canals

[c] Vestibule

[d] Organ of Corti

The specialized receptor organs for the sense of taste, located within papillae on the tongue's surface, are called:

[a] Olfactory bulbs

[b] Cilia

[c] Taste buds

[d] Nociceptors

The sense of smell is scientifically known as:

[a] Gustation

[b] Olfaction

[c] Audition

[d] Somatosensation

Which type of receptor in the skin is responsible for detecting painful stimuli like extreme heat, cold, or tissue damage?

[a] Mechanoreceptors

[b] Thermoreceptors

[c] Chemoreceptors

[d] Nociceptors

What is the transparent structure in the eye that changes shape to focus light onto the retina?

[a] Cornea

[b] Lens

[c] Iris

[d] Pupil

The Organ of Corti, which contains the hair cells for hearing, is located within which spiral-shaped structure of the inner ear?

[a] Semicircular canal

[b] Vestibule

[c] Cochlea

[d] Tympanic membrane

Which of the following is NOT considered one of the five primary taste sensations?

[a] Salty

[b] Umami

[c] Sour

[d] Spicy

The colored part of the eye that regulates the amount of light entering the pupil is the:

[a] Retina

[b] Sclera

[c] Iris

[d] Lens

The sense of taste is scientifically known as:

[a] Gustation

[b] Olfaction

[c] Proprioception

[d] Nociception

Chemoreceptors in the roof of the nasal cavity are responsible for which sense?

[a] Hearing

[b] Taste

[c] Smell

[d] Touch

The sense of static equilibrium, which reports on the position of the head with respect to gravity, is processed in the:

[a] Cochlea

[b] Semicircular canals

[c] Vestibule (utricle and saccule)

[d] Tympanic membrane

Receptors that detect changes in temperature in the skin are called:

[a] Nociceptors

[b] Thermoreceptors

[c] Photoreceptors

[d] Chemoreceptors

Which photoreceptors are more numerous and are responsible for peripheral and dim-light vision?

[a] Rods

[b] Cones

[c] Fovea cells

[d] Iris cells

The outermost, tough, white protective layer of the eye is the:

[a] Cornea

[b] Retina

[c] Sclera

[d] Choroid

The eardrum is also known by what scientific name?

[a] Pinna

[b] Tympanic membrane

[c] Oval window

[d] Cochlea

The visible bumps on the surface of the tongue that contain taste buds are known as:

[a] Cilia

[b] Microvilli

[c] Papillae

[d] Umami

The Eustachian (auditory) tube connects the middle ear to the:

[a] Inner ear

[b] Outer ear

[c] Brain

[d] Nasopharynx (upper throat)

What is the primary function of the Eustachian tube?

[a] To amplify sound waves

[b] To equalize pressure on both sides of the eardrum

[c] To drain fluid from the inner ear

[d] To detect motion

The outermost layer of the skin is the:

[a] Dermis

[b] Hypodermis

[c] Epidermis

[d] Subcutaneous layer

Which cranial nerve is responsible for transmitting visual information from the retina to the brain?

[a] Olfactory nerve

[b] Vestibulocochlear nerve

[c] Optic nerve

[d] Facial nerve

The experience of "flavor" is a complex integration of taste, smell, and which other sense?

[a] Hearing

[b] Touch (texture and temperature)

[c] Vision

[d] Balance

Pacinian and Meissner's corpuscles are examples of what type of receptor found in the skin?

[a] Photoreceptors

[b] Chemoreceptors

[c] Nociceptors

[d] Mechanoreceptors