Immune System

The immune system, which is made up of special cells, proteins, tissues, and organs, defends people against germs and microorganisms every day. In most cases, the immune system does a great job of keeping people healthy and preventing infections. But sometimes problems with the immune system can lead to illness and infection.What the Immune System DoesThe immune system is the body's defense against infectious organisms and other invaders. Throug

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Heart and Circulatory System

About the Heart and Circulatory SystemThe circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. Our bodies actually have two circulatory systems: The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation (the system we usually think of as our circulatory system) sends blood from the heart to all the other parts of our bodies and back aga

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Eyes

We depend on sight more than any other of our senses to maneuver through the space around us. In a single glance, lasting a fraction of a second, our eyes work with our brains to tell us the size, shape, color, and texture of an object. They let us know how close it is, whether it's standing still or coming toward us, and how quickly it's moving. Every day, our eyes give us messages that help us understand the world around us.Although the eyes a

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Endocrine System

The foundations of the endocrine system are the hormones and glands. As the body's chemical messengers, hormones transfer information and instructions from one set of cells to another. Although many different hormones circulate throughout the bloodstream, each one affects only the cells that are genetically programmed to receive and respond to its message. Hormone levels can be influenced by factors such as stress, infection, and changes in the

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Digestive System

What's the first step in the digestive process? Believe it or not, it happens before you even taste your food. Just by smelling that homemade apple pie or thinking about how delicious that ripe tomato is going to be, you start salivating — and the digestive process begins, preparing for that first scrumptious bite.Food is our fuel, and its nutrients give our bodies' cells the energy and substances they need to operate. But before food can do tha

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Brain and Nervous System

Anatomy of the Nervous SystemIf you think of the brain as a central computer that controls all bodily functions, then the nervous system is like a network that relays messages back and forth from the brain to different parts of the body. It does this via the spinal cord, which runs from the brain down through the back and contains threadlike nerves that branch out to every organ and body part.When a message comes into the brain from anywhere in

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Joints

Joints occur where two bones meet. They make the skeleton flexible — without them, movement would be impossible.Joints allow our bodies to move in many ways. Some joints open and close like a hinge (such as knees and elbows), whereas others allow for more complicated movement — a shoulder or hip joint, for example, allows for backward, forward, sideways, and rotating movement.Joints are classified by their range of movement. Immovable, or fibrou

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Muscles

Bones don't work alone — they need help from the muscles and joints. Muscles pull on the joints, allowing us to move. They also help your body perform other functions so you can grow and remain strong, such as chewing food and then moving it through the digestive system.The human body has more than 650 muscles, which make up half of a person's body weight. They are connected to bones by tough, cord-like tissues called tendons, which allow the mu

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Bones

Bones and What They DoFrom our head to our toes, our bones provide support for our bodies and help form our shape. The skull protects the brain and forms the shape of our face. The spinal cord, a pathway for messages between the brain and the body, is protected by the backbone, or spinal column.The ribs form a cage that shelters the heart, lungs, liver, and spleen, and the pelvis helps protect the bladder, intestines, and in women, the reproduct

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Blood

Humans can't live without blood. Without blood, the body's organs couldn't get the oxygen and nutrients they need to survive, we couldn't keep warm or cool off, fight infections, or get rid of our own waste products. Without enough blood, we'd weaken and die.Here are the basics about the mysterious, life-sustaining fluid called blood.Blood and What It DoesTwo types of blood vessels carry blood throughout our bodies: The arteries carry oxygenated

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Privacy Policy

Privacy Policy for healthinfection.blogspot.com/If you require any more information or have any questions about our privacy policy, please feel free to contact us by email at sonyadhan@gmail.com.At healthinfection.blogspot.com/, the privacy of our visitors is of extreme importance to us. This privacy policy document outlines the types of personal information is received and collected by healthinfection.blogspot.com/ and how it is used.Log FilesLike many other Web sites, healthinfection.blogspot.com/ makes use of log files. The information insi

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