Chemically, the human body consists mainly of water and of organic compounds —i.
Water is found in the extracellular fluids of the body the blood plasma , the lymph , and the interstitial fluid and within the cells themselves. It serves as a solvent without which the chemistry of life could not take place.
The human body is about 60 percent water by weight. Lipids —chiefly fats , phospholipids , and steroids —are major structural components of the human body.
Human Organs & Anatomy Diagram - Human Body Pictures - Science for Kids
Fats provide an energy reserve for the body, and fat pads also serve as insulation and shock absorbers. Phospholipids and the steroid compound cholesterol are major components of the membrane that surrounds each cell.
Proteins also serve as a major structural component of the body. Like lipids, proteins are an important constituent of the cell membrane. In addition, such extracellular materials as hair and nails are composed of protein. Proteins also perform numerous functional roles in the body. Particularly important are cellular proteins called enzymes , which catalyze the chemical reactions necessary for life.
Carbohydrates are present in the human body largely as fuels, either as simple sugars circulating through the bloodstream or as glycogen , a storage compound found in the liver and the muscles. Small amounts of carbohydrates also occur in cell membranes, but, in contrast to plants and many invertebrate animals, humans have little structural carbohydrate in their bodies.
The Human Organ Systems
Nucleic acids make up the genetic materials of the body. It is DNA, passed from parents to offspring, that dictates the inherited characteristics of each individual human. Chief among these are calcium , phosphorus , sodium , magnesium , and iron. Calcium is also present as ions in the blood and interstitial fluid , as is sodium. Ions of phosphorus, potassium, and magnesium, on the other hand , are abundant within the intercellular fluid. Iron is present mainly as part of hemoglobin , the oxygen-carrying pigment of the red blood cells.
Other mineral constituents of the body, found in minute but necessary concentrations, include cobalt , copper , iodine , manganese , and zinc.
The cell is the basic living unit of the human body—indeed, of all organisms. The human body consists of trillions of cells, each capable of growth, metabolism , response to stimuli, and, with some exceptions, reproduction. Although there are some different types of cells in the body, these can be grouped into four basic classes.
Bone and blood are considered specialized connective tissues, in which the intercellular matrix is, respectively, hard and liquid. The next level of organization in the body is that of the organ. An organ is a group of tissues that constitutes a distinct structural and functional unit. Thus, the heart is an organ composed of all four tissues, whose function is to pump blood throughout the body.toebartares.tk
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Of course, the heart does not function in isolation; it is part of a system composed of blood and blood vessels as well. The highest level of body organization, then, is that of the organ system. The body includes nine major organ systems, each composed of various organs and tissues that work together as a functional unit. The male and female skeletons are almost exactly the same, with only the pelvic girdle different.
For example, the shape of the spine, the angle and separation of the femurs and the size and shape of the skull are the same when they should not be, which would also affect the posture of the model.
Being able to spin around the anatomy and virtually dissect the models is amazing. Also impressive is the animations showing how the muscles operate. I am a faculty member teaching Point of Care ultrasound to medical students and residents and physicians and I found the app very helpful to review anatomical details and also to develop course content.
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It would be very helpful to have corresponding ultrasound images in both labeled and unlabeled format with some animations in augmented reality for the ultrasound images with both normal and pathological findings. Point of care is a rapidly growing area of ultrasound and will be an integral part of medical education as well as education for medical residents and so it would be great to have that feature as well. Something to look into and if you need any tips you can look at some ultrasound simulation products by companies like Simbionix 3D systems and CAE.
For sure that feature would be welcomed by the medical community and will address a real need in medical education. Requires iOS Compatible with iPhone, iPad, and iPod touch. App Store Preview. This app is only available on the App Store for iOS devices. Screenshots iPhone iPad. Description Join millions of medical professionals, students, and anatomy enthusiasts who use Human Anatomy Atlas to see inside and better understand the human body! Nov 7, Version Subscriptions See All. Patient Education Animations. Advanced Animations. In-App Purchases See All. Information Seller Argosy Publishing.
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