Introduction Homo sapiens is the scientific name given to human beings. The term Homo sapiens was given by Carl Linnaeus, the father of Taxonomy. In Latin, the term Homo refers to ‘earthly being’ and sapiens refers to ‘wise’. We are the sole surviving members of the genus Homo. We are bestowed with a higher cognitive function than every other living being on earth. Also, we are the most destructive species on this planet given our failure to practice rectitude at times. Taxonomic Tree of Human Beings The taxonomic tree of human beings based on hierarchical categories from kingdom to ... Read More

Introduction The skin is the body’s outermost layer which functions to protect the body from all sorts of things, including infections, temperature changes, physical, chemical and mechanical stresses, etc. Being the largest organ of the body, the skin of an average adult human spans about 1.5-2.5 metres and is quite thick as well. A square inch of skin contains thousands of nerves, hundreds of sweat glands, and several blood vessels. This makes the skin a highly sensitive and protective organ. Structure of Skin (skin cells and layers) Image Coming soon The skin is a complex organ built on three layers, ... Read More

Introduction With a weight of about 1.5 kg, the liver is the biggest organ within the body and also the largest gland. Accounting for about 2-3% of the body weight, the liver performs various important functions, such as storage of glucose, synthesis of proteins via amino acids, production of bile, removal of toxic wastes, production of blood clotting proteins, cholesterol, etc. Given its indispensable importance in digestion and regulation of the metabolic process, disorders of the liver pose serious threats to healthy bodily functioning. Anatomical Location Anatomically the liver is situated in the abdominal cavity. It occupies the upper right ... Read More

Introduction Air pollution refers to the presence of toxic chemicals or pollutants in our atmosphere at elevated levels than what has been dictated as safe by world organizations. It is a phenomenon of deviation from natural conditions of concentrations of various components of the atmosphere. These changes usually occur gradually, however, are irreversible. Images Coming soon Air pollution disaster Air pollution is a worldwide problem. Although it is believed that low- to middle-income companies are affected by it more than rich nations owing to greater industrial operations, all nations suffer from the aftermaths of air pollution. According to a study ... Read More

What is the pelvis? The pelvis, the lowest portion of the trunk situated between the abdomen and the thighs, is an uneven bony ring of complicated bones. Several joints and ligaments reinforce and support it. It creates attachment points for certain significant muscles and a cavity that can house numerous significant internal organs. It houses the cervix, uterus, fallopian tubes, and ovaries in females and the prostate and seminal vesicles in males. The human pelvis is made up of bony pelvis, pelvic cavity, pelvic floor, and the perineum. Bony pelvis − The pelvic girdle /hip bone (ilium, ischium ... Read More

Introduction The changes are divided into stages called infancy, childhood, adolescence, adulthood, and old age. In each stage, there are different types of behaviors and physical changes.-In infancy. We acquire basic skills like sucking, crawling, sitting up, and walking. We learn to communicate by making sounds and gestures. By the end of this stage, we begin to talk. In childhood, we develop our abilities to think more complexly. We learn how to take care of ourselves and make friends. We start school, but at the same time, we enjoy playing games with our friends.-In adolescence, we mature into adults. ... Read More

Introduction The human respiratory system is a system of organs, tissues, and cells that transport oxygen from the atmosphere to our blood and release carbon dioxide from our blood to the atmosphere. It's made up of several organs that work together to get oxygen into your lungs and then into your red blood cells. Images Coming soon The respiratory system is composed of two main parts− the conducting zone and the gas-exchange zone. The conducting zone is made up of the nose, nasal cavity, pharynx, larynx (voice box), trachea (windpipe), bronchial tree, and lungs. The conducting zone helps air ... Read More

Introduction The human population is the measure of people who live in a certain region or country. The population can be recorded by the number of people living in a particular area or place (such as a city, state, or country), and by the density of the population in that area. The population is determined by a country's birth rate, death rate, immigration, emigration, and other population factors. Human population growth is the increase in the number of humans in a population over time. The growth of the human population has been making great strides since the beginning of ... Read More

Introduction Human Physiology, a part of biology concerned with the functioning of living organisms and their parts, is studying how the body works. The body's structure, function, and chemistry are all closely related to one another. The body comprises many systems that work together to maintain homeostasis. These systems are made up of organs and organ systems that work together in order to maintain a stable internal environment despite changes in external conditions. Human physiology is a large subject that deals with the functions of animals, including humans. It includes how these animals' bodies work, what is going on ... Read More

Introduction Human insulin is a hormone produced in the pancreas. Its main function is to lower blood glucose levels after meals by enabling cells to absorb glucose from the bloodstream. Insulin also promotes the growth and storage of fat and protein. Insulin is produced by beta cells in the pancreas. The pancreas is an organ located near the stomach that secretes digestive enzymes (which break down food) and hormones, including insulin. Insulin is essential for life as it enables cells to absorb glucose from the bloodstream and convert it into energy. In non-diabetics, insulin stimulates receptors on muscle, fat, ... Read More