Found 26 Articles for Human biology

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

Introduction Human impact on the environment is something that has been happening since the dawn of time. There have been some positive impacts (such as agriculture) and there have also been negative ones (such as pollution). Throughout history, there have been good and bad people who have done good and bad things to the environment. The effects of human activity on the environment are massive. There are many different ways that humans affect the planet− one way is by changing natural habitats so that they become unsuitable for wildlife. Humans also impact the environment by using resources such as ... Read More

Introduction The human heart is the center of the cardiovascular system and pumps blood to all body parts. The heart weighs about 300 grams (10.6 ounces) and is a hollow, muscular organ about the size of a fist. It has four chambers− two upper atria and two lower ventricles. A layer of muscle tissue called the myocardium lines the inside walls of the heart chambers and separated them from each other. The muscle tissue also forms thick layers around each chamber wall that contract to pump blood through the heart. Position of Heart in the Human Body The heart ... Read More

Introduction Evolution is the route of slight amendment in obtained features over a big variety of time. Different ecological variables like temperature, environment, accessibility of assets, and so on assumed a top-notch component in evolution. At the factor whilst an organism is predicted to be a chunk of a specialty, and whilst it couldn`t do as such with its present-day frame plan structures, evolution was started. Human evolution is the cycle by which humans started to foster on Earth from now-wiped-out primates. Zoologically seen, humans are Homo sapiens, a culture-bearing upstanding taking walks species that want to stay ... Read More

Introduction The human ear is a complex organ with the ability to hear sounds of different frequencies. The human ear can detect sounds between 20 Hz and 20, 000 Hz (20 kHz), which corresponds to the range of sounds audible to the human ear. This frequency range is divided into smaller ranges called tones. The human ear can also detect differences in the loudness of sound, known as its amplitude. Structure of Ear Three sections make up the human ear− External ear Middle ear Internal ear External Ear Auricle (Pinna) When we look at our ears, we ... Read More

Introduction The disease is a broad concept of an illness that some organisms have. Injury is another broad concept of an injury that a human can have. Humans can get diseases or are susceptible to them, and most humans can get injured or sustain injuries. What is a Disease? A disease is a state of abnormal health where the structure and function of an organism are impaired due to infection, genetic defect, or environmental influences. Diseases may affect people physically, mentally, or both. The World Health Organization definition of disease is "Any deviation from or interruption of the normal ... Read More

Introduction People's digestive system is made up of their teeth and tongue as well as the oesophagus, stomach, and small intestine (colon). There are four major organs involved in food digestion and absorption. Food travels through all these organs before it is expelled from the body as faeces via the large and small intestine (poop). Parts of the Human Digestive System To understand how your digestive system works, it helps to know what each part does− Mouth This organ receives food from the outside world through eating and drinking. Chewing breaks down large pieces of food into smaller ones ... Read More

Introduction Blood travels through the body's arteries, veins, and nerves. Throughout your body, it is responsible for transporting oxygen, nutrients, and waste products. Circulatory system components include the heart, arteries, veins, and blood itself. Images Coming soon Features of Circulatory System The circulatory system−the system of blood vessels that transport blood throughout the body−is a network of vessels that begins in the heart and ends in blood capillaries. It is a closed-loop system, which means that it has no opening to the outside environment, so all of the materials it transports are contained within it. The circulatory system consists ... Read More

The blood in the human body seems to be the same in color but is different in terms of its characteristics. The blood type has been divided into two main groupings, namely − ABO Grouping Rh Grouping. Let us see in detail about these two main blood groups. Images Coming soon ABO Grouping The presence and absence of two surface antigens, namely, A & B on the surface of red blood cells (RBC), determines the ABO grouping. Antigen− Antigen is a substance that activates the immune system to respond against that substance. Antigens can be bacteria, viruses, toxins, ... Read More