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Found 26 Articles for Human biology
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Introduction A blood pressure test is used to measure the blood pressure level, whether low or high. Two ways to check the blood pressure − Digital blood pressure for automated readings A sphygmomanometer for manual readings. How to measure blood pressure? Blood pressure levels can fluctuate due to various reasons such as stress, physical exertion, and extreme hot or cold temperature. But this fluctuation in the blood pressure level is temporary and normal. Readings taken once don't necessarily mean that the person is having a high BP or low BP level, multiple recordings must be taken ... Read More
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Two interesting concepts in science fiction and technology have caught the imaginations of people all around the world: cyborgs and robots. Both cyborgs and robots are fascinating creations that blur the border between humans and machines, yet they each have unique qualities and functions. Read this article to find out more about Cyborg and Robot and how they are different from each other. What is Cyborg? The term "cyborg" (short for "cybernetic organism") refers to a fascinating concept that blurs the boundary between humans and machines. It is a being that mixes biological and artificial components to form a hybrid ... Read More
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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
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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
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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
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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
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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
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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
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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
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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