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Library of 3383 accessible STEM media resources.
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Military combat, cancer and accidents – all can cause devastating nerve injuries. Sometimes, the body heals on its own. With support from the National Science Foundation, biomedical engineer Christine Schmidt and her team are working to restore nerve function when injuries are more complicated. Surgeons can sometimes move a nerve from one part of a patient’s body to another. Schmidt has developed a method that grafts cadaver tissue onto the damaged area to act as a scaffold for nerves to re-grow themselves.
(Source: DCMP)
Shows how the brain coordinates functions to make simple but lifesaving decisions. Provides an overview of how the cortex assesses incoming information, sends outgoing messages to the muscles, and stores "maps" of the world and the body. Also outlines how circuits of nerve cells operate in the brain and how individual nerve cells function.
Functional electrical stimulation technology (FES) is designed to interface technology with muscles and nerves in an attempt to restore some level of function for people with central nervous system disabilities. Visits several experimental programs that are using implanted electrodes, controlled by external computer devices, to enable people with spinal cord injuries to stand, transfer, and, under controlled conditions, even walk.
Peoples’ attitudes about marijuana have changed dramatically over the years, but one thing is certain--marijuana changes the way the brain functions. The THC in marijuana enters the lungs, is absorbed into the bloodstream, and enters the brain almost immediately. Viewers will understand the immediate effects of marijuana use on various body systems. This program also discusses the effects of marijuana on attention, memory, and learning. Part of the "Talk It Out" series.
While the human brain and nervous system are wired with hundreds of billions of nerve cells, or neurons, sea slugs can get by with tens of thousands. Ironically, sea slugs reveal a lot about the chemistry of the human brain and nervous system. In fact, they are ideal as study subjects for research on learning, memory, and how neurons control behavior. With support from the National Science Foundation, analytical chemist Jonathan Sweedler and his team at the University of Illinois are working to develop new measurement tools that enable insights into the function of individual cells in the central nervous systems of slugs and other animals in order to uncover novel neurochemical pathways. Part of the National Science Foundation Series “Science Nation.”
Tongue taste areas The tongue is a muscular organ in the mouth of most vertebrates that manipulates food for mastication, and is used in the act of swallowing. It is of importance in the digestive system and is the primary organ of taste in the gustatory system. The tongue's upper surface (dorsum) is covered in taste buds housed in numerous lingual papillae. It is sensitive and kept moist by saliva, and is richly supplied with nerves and blood vessels. The tongue also serves as a natural means of cleaning the teeth. A major function of the tongue is the enabling of speech in humans and vocalization in other animals. The human tongue is divided into two parts, an oral part at the front and a pharyngeal part at the back. The left and right sides are also separated along most of its length by a vertical section of fibrous tissue (the lingual septum) that results in a groove, the median sulcus on the tongue's surface. There are two groups of muscles of the tongue. The four intrinsic muscles alter the shape of the tongue and are not attached to bone. The four paired extrinsic muscles change the position of the tongue and are anchored to bone. Do you have good taste? In this video segment, Dr. Linda Bartoshuk explores the sense of taste in humans - why we have it, and what happens when we lose it. Learn why the sense of smell is also important to our experience of food. Footage from NOVA: "Mystery of the Senses: Taste".
(Source: OpenStax)
Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.
Looks at nerve signals and how they are transmitted. Provides an overview of nerve messages in reflex activities at both the chemical and electrical levels as well as the activities of networks of nerve cells in contact. NOTE: Contains some nudity.
This video outlines the complementary nature between structure and function. Students will observe specific animals that have structures geared towards a particular function. Topics covered include the structures and processes animals use involved in breathing, eating, passing waste, and moving. Part of the "Biology" series.
Investigates the major body systems that are important during physical activity: the skeletal, muscular, cardiovascular, respiratory, and nervous systems. Examines each of these systems, their parts, their functions, and how they work. Also, explores the contribution and interaction of the systems when we exercise and while we are rest.
The hummingbird has a forked tongue that is lined with hair-like extensions. Its design is especially useful for drinking nectar from flowers.
Details the anatomy of the honeybee. Also details the roles of drones, worker bees, the queen, and the mystery of the honeybees' dance. Follows the Colony Collapse Disorder (CCD) problem to a variety of laboratories, investigating the pathology of bee diseases that are wiping out entire colonies and affecting our food supply. Concludes with the discovery that a viral infection is the most likely cause of CCD but warns that bees are subject to many other stresses that can upset the ecological balance and wipe out our supplies of fruits and vegetables.
Investigates the physical features of a number of "ugly" animals to demonstrate the efficiency of their odd appendages or disproportionate body parts. Studies the nose of the star-nosed mole, the fleshy protuberances in the mouth of the snapping turtle, the warthog's warts and tusks, the vulture's head, the northern elephant seal's proboscis, the proboscis monkey's nose and protruding stomach, the naked mole rat's lack of hair or fur, the whip scorpion's alien appearance, the mouths of deep sea denizens, and the bat's head.
With support from the National Science Foundation's Directorate for Social, Behavioral, and Economic Sciences, psychologist Brad Duchaine and his team are studying the brains of 20 people with "face blindness." The team hopes to better understand the computational and neural basis of face processing in general. The research will help scientists develop a classification system for the condition and advance understanding of how different face-processing abilities are organized in the brain. Part of the "Science Nation" series.
Uses microphotography and graphics to examine different kinds of plant and animal cells, discussing their structures and tissues. Defines mitosis and meiosis as forms of cell division and illustrates each. Video has three 5-minute segments for convenience.
Labelled parts of the Human Inner Ear
Journalist Greg O'Brien reveals his struggle living with Alzheimer's disease, including the effects on his family. Harvard scientist, Rudy Tanzi, explains the mechanism by which this disease robs the identities of those affected. Tanzi also reveals current research into the treatment of the disease. Part of the “Think Like a Scientist” series.
Showing collections 1 to 5 of 5
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
Biology related concepts
A collection containing 59 resources, curated by Benetech
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
