Human Skeleton
Advertisement. EnchantedLearning.com is a user-supported site. As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.Click here to learn more. (Already a member? The human skeleton consists of 206 bones. The longest bone in our bodies is the femur (thigh bone). Joints: Bones are connected to other bones at joints. Differences between males and females: Males and females have slightly different skeletons, including a different elbow angle. Worksheets to Print
cells of the nervous system
Types of Neurons (Nerve Cells) The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. Neurons come in many different shapes and sizes. Neurons are similar to other cells in the body because: Neurons are surrounded by a cell membrane.Neurons have a nucleus that contains genes.Neurons contain cytoplasm, mitochondria and other organelles.Neurons carry out basic cellular processes such as protein synthesis and energy production. However, neurons differ from other cells in the body because: Neurons have specialize cell parts called dendrites and axons. The Neuron One way to classify neurons is by the number of extensions that extend from the neuron's cell body (soma). Bipolar neurons have two processes extending from the cell body (examples: retinal cells, olfactory epithelium cells). Pseudounipolar cells (example: dorsal root ganglion cells). What is inside of a neuron?
The Brain and Senses
Welcome to the Brain and Senses! Hi, we are Dr Ellen Poliakoff and Dr Luke Jones and we’re experimental psychologists. This means that we find out how people think and how the brain works. When we are not teaching - or lecturing as it's called at University! Luke's research Do you find that time passes quickly when you are having fun, but crawls along slowly when you have to do something boring? We think that we have an internal clock in our brains that we use to answer questions like these: How long did the event last for? How long will it be until something happens? How long ago did it happen? How well do we remember how long something lasted for? I'm particularly interested in finding out lots more about the latter. Ellen's research We often take our movements for granted, because most of the time we don't have to think about what we are doing. I am doing some research into Parkinson's disease - an illness that affects the brain and makes it difficult to move.
Human Digestive System
Advertisement. EnchantedLearning.com is a user-supported site. As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.Click here to learn more. (Already a member? The human digestive system is a complex series of organs and glands that processes food. Most of the digestive organs (like the stomach and intestines) are tube-like and contain the food as it makes its way through the body. The Digestive Process: The start of the process - the mouth: The digestive process begins in the mouth. On the way to the stomach: the esophagus - After being chewed and swallowed, the food enters the esophagus. In the stomach - The stomach is a large, sack-like organ that churns the food and bathes it in a very strong acid (gastric acid). In the small intestine - After being in the stomach, food enters the duodenum, the first part of the small intestine. The end of the process - Solid waste is then stored in the rectum until it is excreted via the anus.
Parts of the Brain III
Circulatory System
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The Ear - Science Quiz
Cochlea, Ear canal, Eardrum, Eustachian tube, Incus, Inner ear, Malleus, Middle ear, Outer ear, Semicircular canals, Stapes. (11)Create custom quiz 0% | 0:02 | Click on: Incus The Ear Your score: undefined% undefined test Would you like to see your own top scores for this anatomy game in this space? Become a Patron Have you heard? Keywords: Science games, anatomy games, anatomy study tool, healthcare, memorize anatomy, chemistry, elements, quiz, tool, biology
Your Lungs & Respiratory System
Listen Time for Talk Your lungs are important for breathing . . . and also for talking! Above the trachea (windpipe) is the larynx (say: LAIR-inks), which is sometimes called the voice box. The amount of air you blow out from your lungs determines how loud a sound will be and how long you can make the sound. Experiment with different sounds and the air it takes to make them — when you giggle, you let out your breath in short bits, but when you burp, you let swallowed air in your stomach out in one long one! Love Your Lungs Your lungs are amazing. Keeping your lungs looking and feeling healthy is a smart idea, and the best way to keep your lungs pink and healthy is not to smoke. Finally, cigarette smoke can damage the cells of the lungs so much that the healthy cells go away, only to be replaced by cancer cells. You can also show your love for your lungs by exercising! Reviewed by: Yamini Durani, MD Date reviewed: October 2012 Originally reviewed by: Laura Inselman, MD
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Gaseous Exchange
