Crash Course
The Nervous System, Part 3 - Synapses!: Crash Course A&P
We continue our tour of the nervous system with a look at synapses and the crazy stuff cocaine does to your body.
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Table of Contents:
Electrical Synapses Use Ion Currents Over Gap Junctions to Transmit Neurological Signals...
SciShow
Why Is Fake Blood so Hard to Make?
Functional artificial blood could solve a lot of problems, so why hasn't it been created yet?
Bozeman Science
Development: Timing and Coordination
Paul Andersen explains how genes control the timing and coordination of embryo development. Seed germination initiates the discussion of cell differentiation. The SRY gene and genetic transplantation shows the importance of embryonic...
SciShow
How to Eat When You Don't Have a Mouth: Lessons From 5 Animals
Not all animals have a mouth, or even need one to eat! These different feeding strategies can teach us a lot about our ancestors and how they went from not needing a mouth at all to only eating with one.
SciShow
Why Do We Sneeze
Everyone does it, but why? In this episode of SciShow Quick Questions you get the answers!
SciShow
How 6 Rare Diseases Are Changing Everyday Medicine
Sometimes, studying uncommon maladies can reveal larger insights into how our bodies work! Chapters View all 0:00 0:07 0:14 0:21 0:29 0:36
TED-Ed
TED-Ed: Why are human bodies asymmetrical? - Leo Q. Wan
Symmetry is everywhere in nature. And we usually associate it with beauty: a perfectly shaped leaf or a butterfly with intricate patterns mirrored on each wing. But it turns out that asymmetry is pretty important, too - and more common...
SciShow
Could Your Blood Type Ever Change?
From A positive to O negative, everyone's born with a blood type, and they're stuck with that blood type for their whole lives... or are they?
TED Talks
TED: Body parts on a chip | Geraldine Hamilton
It's relatively easy to imagine a new medicine -- the hard part is testing it, and that can delay promising new cures for years. In this well-explained talk, Geraldine Hamilton shows how her lab creates organs and body parts on a chip,...
TED-Ed
TED-ED: How do scars form? - Sarthak Sinha
It's hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they stick around for so long after the incident that caused...
Crash Course
Blood Vessels, part 1 - Form and Function: Crash Course A&P
Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We're also going over how those structures...
SciShow
6 Bacteria with Awesome Superpowers
Bacteria have evolved some pretty incredible abilities. They may never star in a big summer movie, but here are six bacteria with amazing superpowers.
TED Talks
Siddhartha Mukherjee: Soon we'll cure diseases with a cell, not a pill
Current medical treatment boils down to six words: Have disease, take pill, kill something. But physician Siddhartha Mukherjee points to a future of medicine that will transform the way we heal.
SciShow
Will There Ever be a Cure for the Common Cold?
Medicine has made leaps and bounds in treating illnesses in the last century, but are they ever going to get around to curing the common cold? We might be closer than you think.
TED Talks
Molly Stevens: A new way to grow bone
What does it take to regrow bone in mass quantities? Typical bone regeneration -- wherein bone is taken from a patient’s hip and grafted onto damaged bone elsewhere in the body -- is limited and can cause great pain just a few years...
SciShow
This Parasitic Plant Stole Over 100 Genes From Other Plants | SciShow News
Plants may not seem like they live the most exciting lives, but two new papers published this week point to different types of plants that are actually very cunning and manipulative. One, the parasitic dodder, steals both nutrients and...
Bozeman Science
Cellular Organelles
Paul Andersen describes the structure and function of the major organelles in a eukaryotic cell. The endoplasmic reticulum, ribosomes, and golgi complex produce and store proteins in the cell. Lysosomes dissolve broken and invasive...
SciShow
Inside The World's Most Powerful New Microscopes
In recent years, scientists have come up with new ways to hack the physics of light, to invent the most powerful microscopes the world has ever seen.
SciShow
Why Do We Keep Needing New "G"s?
What’s with all the "G"s and why do we keep having to develop new ones to use our phones in this technology.
TED-Ed
TED-ED: The strange case of the cyclops sheep - Tien Nguyen
In the 1950s, a group of ranchers in Idaho were baffled when their sheep gave birth to lambs with only one eye. Mystified by these cyclops sheep, they called in scientists from the U.S. Department of Agriculture to investigate. What...
SciShow
Why Is Heart Cancer So Rare?
Why don't we hear about people getting heart cancer? Turns out that some types of cells are less susceptible to cancer than others.
SciShow
Cyclopia: A Rare Birth Defect That Could Help Cure Cancer
With a greater understanding of biological mechanisms, humans may be able to take a devastating birth defect and turn it into a treatment for cancer.
TED Talks
TED: This gel can make you stop bleeding instantly | Joe Landolina
Forget stitches -- there's a better way to close wounds. In this talk, TED Fellow Joe Landolina talks about his invention -- a medical gel that can instantly stop traumatic bleeding without the need to apply pressure. (Contains medical...
SciShow
What Happens If You Fuse All Your Chromosomes? | SciShow News
Two separate groups of biologists reported fusing entire sets of Saccharomyces cerevisiae chromosomes together, and surprisingly, the actual number of chromosomes might not be as important as we thought.