Sense Organs
Pancha Jnanendriya: Ministers of the Soul
You may not know us, but we exist in your
minute moves every millisecond or maybe less. Without any one of us, you have been
physically challenged which in turn affects your life.
We are the Pancha jnanendriyas, the five means of perceiving, or the sensory
organs. The term comes from the Sanskrit, Pancha,
meaning “five”; jnana, meaning
“awareness” or “higher knowledge”; and indriya,
meaning “sense” or “organ.” We are known as the sense organs that allow you,
the humans, to perceive the world around you.
The Pancha
jnanendriyas include the eyes (netra), nose (nasika), ears (karna), tongue
(rasana) and skin (tvak). We are related to, but differ from, the five senses,
known as the Pancha Tanmatra: sight, smell, sound, taste and touch.
In your daily life, we play an immensely
pivotal role. In any situation you face, to comprehend it and act accordingly
you need us. We are the regulators of your actions and reactions and most of
all the functioning of your cerebrum. If we didn't exist, the cerebrum would
have been idle just like the lazy boy next door without a job.
Darshanendriya (The
Eyes)
We, the 'Eyes', are organs of the visual
system. We provide living organisms with vision, the ability to receive and
process visual detail, as well as enable several photo response functions that
are independent of vision. We detect light and convert it into electro-chemical
impulses in neurons.
By collecting light from the visible world
around us, we convert it into nerve impulses. The optic nerve transmits these
signals to the brain, which forms an image, thereby providing sight.
Our structures and functions are complex. A
pair makes us One. Each of us constantly adjusts the amount of light it lets
in, focuses on objects near and far, and produces continuous images that are
instantly transmitted to the brain.
Our Virtues and Vices!
HOW MANY COLORS CAN HUMANS SEE?
Researchers estimate that most humans can
see around one million different colours. This is because a healthy human eye
has three types of cone cells, each of which can register about 100 different
colour shades, amounting to around a million combinations.
WHAT'S THE VA RATING FOR EYES?
All diseases of the eye are rated under VA
Schedule 38 CFR 4.79. Diseases of the eye or eye conditions may be assigned
readings from 10% to 60% except for blindness, which may carry a rating of 100%
depending on the full circumstances of the Veteran and any related
disabilities.
Ghranendriya (The Nose)
I, the human nose, am the most protruding
part of the face. I consist of the nostrils and am the first organ of the
respiratory system. I allow the air to enter your body, then filter the debris
and warm and moisten the air. I have two cavities, separated from one another
by a wall of cartilage called the septum. The external openings are known as
nares or nostrils. I give you a sense of smell and help shape your appearance.
Your nose is important to your health as it
filters the air you breathe, removing dust, germs, and irritants. It warms and
moistens the air to keep your lungs and tubes that lead to them from drying
out. Your nose also contains the nerve cells that help your sense of smell.
Setting the
Beauty Standards!
WHAT IS A BEAUTIFUL NOSE?
In Western culture, a beautiful nose is
relatively small, straight along the bridge, with small nostrils that are
neither flared nor pinched. The tip of the nose neither dips too far down nor
projects too far outward or upward.
WHO HAS THE MOST BEAUTIFUL NOSE?
Science Says Kate Middleton and Scarlett
Johansson Have Perfect Noses. Here's How You Can Tell. A new study published in
the JAMA Facial Plastic Surgery journal has found that when measured from the
lip up, the angle of the upturn of the nose is found as most attractive by both
men and women at 106 degrees.
CAN YOU LIVE WITHOUT A NOSE?
Without the nose, the body wouldn't be able
to taste food nearly as well. What humans call “taste” is a mixture of
different sensations. One of the sensations is the smell. When food is eaten,
the nose smells the food and sends information to the mouth in a process called
olfactory referral.
WHAT IS THE RAREST NOSE SHAPE?
Nose 14: The Anonymous
The rarest of all the nose types, this
flat, rounded shape was found in only one face out of 1793 considered - 0.05
per cent of the population. For this reason, the study author says there are no
important figures to represent this nose.
WHY DO WE HAVE 2 NOSTRILS?
Two eyes, two ears, two nostrils. We need
our doubles for stereoscopic vision, stereo sound, and super smelling. Our
nostrils are separated by a septum, in effect giving us two noses. Most of the
time, one nostril allows less air to pass through than the other, with the
nasal flow switching every few hours.
Sravanendriya (The Ears)
We are the ears, the organ that enables
hearing and, in mammals, body balance using the vestibular system. In mammals,
we are usually described as having three parts—the outer ear, the middle ear
and the inner ear.
We, the human ears, organ of hearing and
equilibrium that detects and analyzes sound by transduction (or the conversion
of sound waves into electrochemical impulses) and maintains the sense of
balance (equilibrium), are located on either side of the head, directly over the
temporal lobe of the brain. This is the part of the brain that controls speech,
hearing, memory, and some emotion.
Hearing how
it sounds!
HOW DO EARS WORK?
IEM's work using wireless technology (via radio frequencies – high frequencies), much in the same way a radio stereo works. An audio signal (monitor mix) is sent from the sound desk to the transmitter. This transmitter then sends the signal wirelessly via an antenna to the belt pack receiver that the artist wears.
Swadendriya (The Tongue)
I am the tongue, a mobile muscular organ in
the mouth that partly extends into the upper throat. Even though everyone knows
what the tongue is, my complexities in the mouth might be surprising.
I am covered with moist, pink tissue called
the mucosa. Tiny bumps called papillae to give me my rough texture. Thousands
of taste buds cover the surfaces of the papillae.
I am very helpful and important for eating,
taste, speech, and breathing.
Licking in some facts!
DO HUMANS HAVE 2 TONGUES?
A major function of the tongue is the
enabling of speech in humans and vocalization in other animals. The human
tongue is divided into two parts, an oral part at the front and a pharyngeal
part at the back.
WHERE DO TONGUES END?
The apex of the tongue is the bit at the
end that makes contact with the teeth. Linguists studying articulation often
discriminate between the apex and the blade of the tongue—essentially, while
the apex is the very tip of the tongue, the blade of the tongue is the
teeth-facing region just before the apex.
HOW LONG IS YOUR TONGUE IN YOUR BODY?
The average tongue is about 3 inches long. Tongues
are measured from the epiglottis (a flap of cartilage in the mouth at the back
of the tongue) to the tip. An adult man's average tongue length is 3.3 inches
(8.5 cm), and an adult woman's average tongue length is 3.1 inches (7.9 cm).
Sparshendriya (The Skin)
Me, the skin is the outer covering of the
body and is the largest organ of the integumentary system, made of water,
protein, fats and minerals. I protect your body from germs and regulate body
temperature. The nerves that run through me help you feel sensations like hot
and cold.
I have up to seven layers of ectodermal
tissue guarding muscles, bones, ligaments and internal organs of your body.
I provide a protective barrier against
mechanical, thermal and physical injury and hazardous substances. I also
prevent loss of moisture and reduce the harmful effects of UV radiation.
Touching the
core to knowledge!
IS SKIN A TISSUE OR ORGAN?
The skin is the largest organ in the body —
both in weight and in surface area — and separates the body's internal
environment from the external environment. The skin has many diverse roles.
WHAT ARE THE MAIN FUNCTIONS OF THE SKIN?
Protection: It helps prevent the body from drying out and the sun's radiation.
Body temperature
regulation
Excretion: Release sweat through the sweat glands.
Information gathering: A receptor that transmits it to the nervous system.
Vitamin D production
IS SKIN MADE OF WATER?
The skin contains 64% water, muscles and
kidneys are 79%, and even the bones are watery: 31%.
HOW STRONG IS SKIN?
The maximum tensile strength (0.871-1.169 Newton) and energy calculations (3.75-6.432 N.mm) was offered by living skin equivalents, made with human types I and III collagens, cultured at the air-liquid interface.
By now you all have known us, the sensory
organs very well. So, we can expect that you will take good care of us. We are
a part of you and we hope to get that respect that we deserve. After all, we
are the ministers of your soul and bring out the very essence of your stance on
anything and everything, isn't it?
(By Koyena Chatterjee, Senior Editor, Editorial Department, Adolescence Development Club)
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