Sensory organs and their functions

As far back as the 's, the famous philosopher Immanuel Kant proposed that our knowledge of the outside world depends on our modes of perception. In order to define what is "extrasensory" we need to define what is "sensory".

Sensory organs and their functions

With help of sensory organs we can sense our body.

Sensory Organs and How They Function First, Amy touched a cold door knob. There are receptors in her skin responsible for gathering the signals to be sent to her brain. Aug 04,  · What are the human sense Organs- Read about the functions of the five sense organs- eyes, ear, nose and other sense organs of the human body. The human senses contain receptors that relay information through sensory neurons to the appropriate places within the nervous system. The receptors could be classified into . Beyond the five sense organs. In addition to sight, smell, taste, touch, and hearing, humans also have awareness of balance (equilibrioception), pressure, temperature (thermoception), pain (nociception), and motion all of which may involve the coordinated use of multiple sensory organs.

A structure which is a receptor for external or internal stimulation. A sense organ is often referred to as a receptor organ. External stimuli affect the sensory structures which make up the general cutaneous surface of the body, the exteroceptive area, and the tissues of the body wall or the proprioceptive area.

These somatic area receptors are known under the general term of exteroceptors. Internal stimuli which originate in various visceral organs such as the intestinal tract or heart affect the visceral sense organs or interoceptors. A receptor structure is not necessarily an organ; in many unicellular animals it is a specialized structure within the organism.

Sensory organs and their functions

Receptors are named on the basis of the stimulus which affects them, permitting the organism to be sensitive to changes in its environment. A part of the body that receives stimuli and transmits them as sensations to the brain. There are five types of sensory organs such as Eye: The eye is the organ of vision.

It has a complex structure consisting of a transparent lens that focuses light on the retina. The retina is covered with two basic types of light-sensitive cells-rods and cones. The cone cells are sensitive to color and are located in the part of the retina called the fovea, where the light is focused by the lens.

The rod cells are not sensitive to color, but have greater sensitivity to light than the cone cells.


These cells are located around the fovea and are responsible for peripheral vision and night vision. The eye is connected to the brain through the optic nerve. Experiments have shown that the back of the brain maps the visual input from the eyes.

What Is the Function of the Sensory System? |

One type of color blindness results in the inability to distinguish red from green. This can be a real handicap for certain types of occupations. To a colorblind person, a person with normal color vision would appear to have extrasensory perception.

The ear is the organ of hearing. The outer ear protrudes away from the head and is shaped like a cup to direct sounds toward the tympanic membrane, which transmits vibrations to the inner ear through a series of small bones.The sensory system is responsible for detecting stimuli from the outside world and transferring nervous impulses to the correct portion of the brain or spinal column to allow the body to react.

The sensory system consists of the eyes, ears, nose, tongue, skin and their associated nerves. Six senses. sensory organs functions The brain’s interpretations of the sensations determined by the sensory system are called perception. Perception is the brain’s method of determining whether the information sent to the brain is pleasurable, painful, dangerous, or joyful.

May 18,  · It explains about sense organs of human (Eye, ear, nose, tongue and skin).

Functions Of Sensory Organs

It explains the functions and importance of sense organs. The topic starts with an. The key sense organ would be the tongue. If one could not smell something, they could not taste it buds on the tongue contain chemo receptors that .

Beyond the five sense organs.

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In addition to sight, smell, taste, touch, and hearing, humans also have awareness of balance (equilibrioception), pressure, temperature (thermoception), pain (nociception), and motion all of which may involve the coordinated use of multiple sensory organs.

The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body.

Together, these organs are responsible for the control of the body and communication among its parts. glands, and organs to regulate their functions.

Nervous System Anatomy Nervous Tissue. The.

What Is the Function of the Sense Organs? |