Sense Organs

Explaining The Sense Organs Of The Human Body:

When it comes to the sense organs of the human body, these are considered specialised organs consisting of sensory cells. The primary function of these cells is to perceive external stimuli. The human sense organs are integral parts of the body, helping sense the external stimuli and conveying the impulses to the sensory system of the human body. The sense organs and their receptors trigger multiple stimuli and transfer the same to the brain. In simple words, it can be said that the sense organs of an individual decide the interaction and response of the body to the environment. 

How Many Types Of Sense Organs Are There In The Human Body?

There are, in total, five sense organs in the human body. These primary sense organs of the human body are mentioned as follows:

• Eyes

• Ears

• Nose

• Tongue

• Skin

The human body’s primary five sense organs are associated with light, sound, smell, taste, and touch, respectively. Now that these sense organs are acquainted with the receptors, the primary function of these receptors is to transmit the signal to the sensory nerves. 

Describing The Five Sense Organs:

Here mentioned are five primary sense organs with their functions in the human body:

• Eyes- Sight or Ophthalmoception: 

The eyes are the visual sensory organs in the human body. These are sensitive to light images and collect data from the external environment to transfer the same to the brain for further processing. The light sent to the brain by the eyes is converted into useful information, allowing the individual to differentiate what color, how bright, or how far the specific object is placed. There are two layers of the eye- cornea and lens through which the incoming light travels.

• Ears- Hearing or Audioception: 

Ears are the auditory sense organs in the human body and help the individual to perceive different sounds. It is the auditory system of the human being that detects the sound waves or vibrations in the air allowing the individual to hear sounds. The ears in human beings consist of three parts- the outer ear, the middle ear, and the inner ear. The out ear transfers the external vibrations into the ear canal. It is the place where the rain sends these vibrations into meaningful sounds.

• Nose- Smell or Olfalcopection: 

The nose is called the olfactory organ of the human body. The nose’s primary function as the sensory organ is to help the individual perceive different smells. Not only this, but our olfactory system also contributes to sensing the taste. The nose is considered the essential part of the human body’s respiratory system. Air is inhaled by the nose, which then is transferred to the olfactory cells (chemoreceptors). It is the brain which lastly recognises and identifies the different smells. 

• Tongue- Taste or Gustaoception: 

One of the human sense organs is the tongue which consists of the taste buds, which further helps the individual perceive different tastes and flavors. It is in between the papillae where taste buds are present on the tongue and thus, helps the human sense different tastes. The nose and tongue function together to discriminate the flavors and create a taste. If an individual can’t smell a sure thing, they can’t taste it either. The taste buds are classified into four types, and each of them is capable of detecting different tastes, including saltiness, sweetness, bitterness, and sourness. 

• Skin- Touch or Tactioception: 

Skin, the largest organ of the human body, is related to the sense of touch. It is the outer covering of the body that contains general receptors capable of detecting pain, chemical stimuli, temperature, physical touch, and pressure. In addition, the skin comprises nerves, nails, hair follicles, and glands. When it comes to the significant function of the skin, these include sensation, regulation, and protection. There are three layers of the skin: the epidermis, the dermis, and the hypodermis.

Conclusion

The individual needs to have proper functioning sense organs to survive in the world. The primary function of the five sensory organs is to let the individual’s brain know about all the things happening in the external environment and how a body should react to the same. If you are looking forward to learning all about the five sense organs and their functions in the human body, then this article is for you.