Human Anatomy
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Fibers and multicellular life
Fibers bond and link cells together. If they did not exist cells could not have come to form massive assemblies that make most animals and plants familiar to us. Read ahead to know how….
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Fibers and Plant Cells
An amazingly wide range fibers are produced by cells in plants. Read about a few of them.
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Ameloblasts – Makers of the Tooth Enamel
Ameloblasts make the hardest of our body part the tooth enamel. Get to know about these amazing cells.
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Bone Masons of Our Body – the Osteoblasts
Osteoblasts are the bone masons of our body. They lay down the bone in health and in injury. Get to know them better......
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Osteoclasts – the Cells That Break Bone
Bone breaking cells working too hard or too lazily can make difference between life and death. See how..
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“Cumin – the great reviver and appetizer” A Guest Article by - Urja Vidya Narayan
Is it summer in your part of the world? Feel drained? Here is an inexpensive, healthy, tasty drink. Welcome an appetizer, vitalizer …
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An invaluable, inexpensive fruit, Papaya - Guest Article by Urja Vidya Narayan
Eating a tasty fruit, easily available year round, can give health and can prevent blindness related to deficiency of vitamin A . Read on and spread health and joy.
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Many guises of killer cells
These cells are killers but they are do a favor by killing germs and removing dead or dying or death-worthy cells of our own body....
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Fighting bad bacteria by feeding on them
We have a vast range of amoeboid cells which literally eat our enemies and protect us. How ....please read ahead.
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weapons of brutal little beasties
How do the tiny bacteria cause so much damage to us in terms of pain, misery, energy, money, emotional strain etc.?
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or brutal beasties –II
HIV and Mycobacterium tuberculosis is a deadly combination of viral and bacterial pathogens. With the risk of one third of AIDS patients dying of tuberculosis …………
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Brutal little beasts-I
Bacteria support life or take it. They produce and release oxygen and fix nitrogen. But some of them kill humans. About 5000 deaths take place every day just from one bacterial disease – Tuberculosis.
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Little lively chemists- I I
Seems that the bacteria are structurally not very diverse but functionally are some of the greatest mavericks known to mankind.
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Little Lively Chemists - I
Despite their minute size the bacteria can carry out a vast range of biochemical reactions including the master process of food and oxygen making – photosynthesis.
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Seed - a plant’s time capsule
A seed is a kind of a time capsule for a plant preserving its ancestral genetic information and projects it in future.
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Hair on human ear
Hairy human pinna, a condition found only in males, is no more considered to be on Y chromosome but a large number of students are still being taught that this is a holandric gene. Read on to see how erroneous education departments perpetuate giving misinformation.
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Bioquiz on movement
Take a quiz, if you are not specialized in biology you may find it more challenging.
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Solo or social
However social we do not submerge our existence to become one massive being. But some animals do. They are the social amoebae. Read and decide if they are solo or social.
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Away From Light
Light attracts many forms of life and repels others. There are living beings which seek light and grow, orient or move towards light. There are others who avoid light and seek darkness. Get a glimpse of wide variety of life.
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Unto light
Light attracts many forms of life for different reasons read about its effects and ways of reaching to light.
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Moving water wards
Water is a strong stimulus moving living beings towards or away from it. How? Read on…...
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Hunters but not animals!
Animals including humans hunt. There are living
beings which are not animals but they do hunt. Who are they?....
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Movement in Plants
Life is movement.But in plants it is too slow for us to notice. In some plants it has been observed. Want to see it?
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Lymph hearts
Do you know that there are special types of hearts in some animals that pump lymph? These are on the backside of the animals like frogs and toads…
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Invertebrate animal hearts
Animals have hearts. Literally ! Read ahead and see for yourself hearts of some tiny animals.
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Cardiac Muscles-II
Larger the animal slower the heart beats. From elephants to humming birds the heart rate goes up from about 35 to over a thousand every minute.
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Cardiac Muscles- I
Do you know what makes the heart tick? Do you know name of the hormone the heart produces? Read on for interesting info..
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Dextrous Muscles
Read about the muscles which enable us to take a
grip, hold on to big and small objects, move, rotate, push, pinch, pierce, pick and pull at the objects.
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Weightlifting muscles-III
Muscles of the forearm enable us to lift objects like files, books, telephone handset etc. and they are …
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Weight lifting muscles-II
Want to know more about – biceps and triceps, the arm muscles. Read on..
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Weight lifting muscles - I
Muscles of shoulder, arms, forearms, chest, back, legs all are all involved directly or indirectly in lifting weights. Get to know more….
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Muscles for walking – II
Look at the major muscles that take you places, conveniently and economically.
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Muscles for walking – I
Walking appears so simple but is it really so? See for yourself how important and complex the act is.
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Back muscles
Check answers of Muscle quiz-II and get familiar with muscles of the back.
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Muscle quiz - II
See answers of earlier quiz on muscles and take one more.
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Muscle Quiz – I
Take a quiz. See answers in next article or I will email them on request.
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The Biggest, Smallest, Longest, and Strongest Skeletal Muscles in the Human Body
Which is the Biggest, smallest, longest, strongest muscle in our body?
Read about these muscles.
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Sheet like muscles - Abs or Abdominals
The abs are sheetlike skeletal muscle protecting the floor of abdominal cavity. We have to exercise and keep these well toned.
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Diaphragm – a skeletal muscle sheet
A dome shaped muscle helps us take every breath. It is skeletal but will not listen to all your commands. You can’t hold your breath to commit suicide. DOn't try but it is true.
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Sound producing muscles in animals
Delicate muscles like of vocal cords help animals make sound and communicate love, distress, fear, aggression etc.
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Sound producing muscles
Tiny skeletal muscles help us speak. See how much we owe to a few cartilages and some muscles that make our voice box, the larynx.
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Muscles of expressions
Muscles move parts of body or whole animal body and some of them help in communication and expression. Read more about such muscles..
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Muscles and Facial Expressions
Our face is our fortune! And the face is mobile and expressive on account of facial muscles.
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Skin deep muscles - II
Muscles no deeper than skin move whiskers or raise killer quills of porcupine.
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Skin deep muscles - I
Beauty is skin deep perhaps, but so also are some muscles.
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Tongue muscles-2
Four groups of muscles move our tongue. And the tongue can do a variety of things.
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Tongue muscles-1
With our tongue we - talk, sing, click, eat, chew, swallow, dislodge food particles stuck between teeth, taste, roll and move food, slurp and tease if want to be naughty. How does it do it?..
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Ear muscles-2
Tiny ear muscles help protect you from a sudden very loud noise. Read about these minute muscles.
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Ear muscles-1
Our ear has tiny skeletal muscles performing specific functions.
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Eye muscles - 2
Muscles not just outside the eye, inside the eyeball are some muscles, not skeletal but very delicate smooth muscles.
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Eye muscles – 1
Eye muscles are skeletal muscles but very delicate in build and finer in functions.
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Smooth muscle contraction
Smooth muscle contraction differs from that of skeletal muscle. How? Read the distillate...
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Smooth muscle jobs
Read about the range of activities of smooth muscles…
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Smooth muscle structure
Know more about smooth muscles….
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Introduction to smooth muscle
Of the three types of muscle tissue smooth muscle is more primitive ……………
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Flagella and Movement
Just a hairlike thin lashing filament, the flagellum, can make or mar the future of a species. How? ..check for yourself.
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Cilia and their movement
The minute cilia are really remarkable as they show “all life is one” and their absence seems to cause “situs inversus” the mirror imaging of internal organs.
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Cilia - The Little moving Hair
Amoeboid movement is the most primitive mode of locomotion. Ciliary movement is faster and better organized. Read about the cilia and …
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Amoeboid Movement
Read about the most basic & least well understood method of cellular mode of locomotion. The amoeboid movement.
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Life is movement
Life is movement but not all animals move from place to place such as barnacles or sponges…
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Plant surface beauties
See the dimples, the pimples, and goosebumps.- a vast spectrum of plant surface appendages.
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Plantskins
HO OH HO O HO HO OH OH O O O HO OH HO HO …. This is not the laughter of a villain. The sequence continues and finally gives cellulose structure.
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Fungal skins,
Which is the biggest living organism in the world? Whale? Banyan tree? Red wood tree? Macrocystis? No!!!. It's a fungus called…..get to know about fungi and their skins.
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Skins of the tiny beings,
Cell membrane, all of a hundred millionth meter is the skin of one celled creatures. But it is as versatile as our skin or perhaps even more….
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Sponge skin
Know more about skin of animals who never in their adult lifetime locomote or even move a part of their body. The phylum Porifera, sponges…
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Simple skins- Hydra
Coelenterates like hydra and jellyfish are nothing but a bag of skin enclosing their body cavity which doubles up as a gut cavity. Their versatile skin is for - protection, movement, digestion, absorption, secretion, sensation, regeneration, reproduction, and even decision making and implementing these decisions. Impressed ?..please read on ..
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Skin -The Wonderwrap 15
Compare your answers to the Skin Quiz-1 and take a look at the amazing world of flatworms-freeliving and parasitic. Tiny ones upto 100 feet long,whale of whale tapeworms.
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Skin -The Wonderwrap-14
Learn interesting features of skin of earthworm, leeches, roundworms etc. Take a quiz on skin..
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SkinTheWonderwrap-13
Arthropods like insects have a remarkable wrapping around their bodies. Read about their exoskeleton….
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Skin - The Wonderwrap - 12
Starfish (echinodermates) and Oyster (molluscan) skin has some special features.Pearls are formed to avoid irritation, like our skin develops corns and calluses.
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Skin - The Wonderwrap -11
A parrot’s feathers are green. Do its feathers have a green pigment? No! It is because of….
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Skin - The Wonderwrap - 10
Have you heard of an animal with cellulose in its skin? Yes, cellulose ..welcome to read special features of skins of various animals.
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Adjectives and anatomy
Many students do not care for biology, as they find the terms in biology difficult. It is easier to learn anatomy - structure of living things, if one knows what the words mean. See for yourself…
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Skin-The Wonderwrap-9
This article gives information and tips about skin care.
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Skin-The Wonderwrap-8
This article deals with sensory functions of the skin especially –the heat and cold receptors, pain receptors.
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Skin - The Wonderwrap - 7
With skin, an important basic sense organ, we get to know the -pain, heat, cold, touch, and pressure. Please read on for more information..
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Skin -The Wonderwrap 6
On May 13, when Winston Churchill met his cabinet he said, “ I have nothing to offer but blood, toil, tears and sweat”.
All over the world in different regions, languages and cultures we find sweat equated with hard work and honest work.Kindly read on to know more about sweat.
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Skin-The wonderwrap-5
We often use expressions - " no sweat ", " by the sweat of his brow", "sweating out ", "breaking in cold sweat "etc. Let us try to know more about glands producing sweat.
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Skin-The Wonderwrap-4
The list of glands in skin of mammals is long - sebaceous glands, ceruminous glands, sweat,
lacrimal , mammary, meibomian, perineal, prepucial glands
Sebaceous glands are related to pimples and acne.
Had the earwax not been produced perhaps, insects would have laid their eggs in the warm, soft, dark tunnel of our ear canals. Read more...
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Skin-The Wonderwrap-3
You may have often wondered if the identical twins (i.e. twins coming of the same zygote) have exactly the same fingerprints?
The answer is in the article.Read on please
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Skin The Wonderwrap-2
The skin colors vary in man to a great deal depending on concentration of a single pigment-the melanin.
Melanocytes in skin produce melanin.Sunlight darkens skin.Intense sunlight can lead to development of skin cancers.
People with little or no melanin in their eyes, skin, or hair are called albinos.
If an albino child shows unusual bruising or bleeding one may suspect Hermansky-Pudlak syndrome.
Skin passively protects the body from elements of nature and microbes.
It is now known that epidermal cells called Langerhans cells trap antigens penetrating skin.
Yes and skin produces a local hormone - thymopoietin.Please read on for the full story.
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Skin- The Wonderwrap-1
Our skin is a large organ.It is protective and sensitive.It regenerates itself.It has various associated structures like nails, scales, hair and a wide variety glands including sweat glands,Ceruminous glands etc.It has different textures and hues.So many, infact, that we should be called
hu(e)mans rather than humans, perhaps. This is the first of the series of the articles on the skin and deals mainly with only the outermost layer of skin, the epidermis.
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Italians In Anatomy
Our body parts bear names of several Italian anatomists.A peculiar observation is their names - first or second, generally end with the letter i or o.You may find it interesting to see the list of such scientists and their contribution.
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Thumbs Up
A study of the amazing opposable thumb.
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Our Dynamic bones
An introduction to our incredible skeleton.
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