Pacemaker cells trigger action potentials throughout the heart: Human Anatomy and Physiology
' Topps Lord of the Rings LotR Masterpieces 2 sketch card by Soni Alcorn-Hender
This is appaling but I laughed. so that may confirm my self-declaration that I am a Slytherin. [I laughed too. xD I took the test and came out Slytherin, and it fits me perfectly.
Rosette Nebula (NASA, Spitzer, This infrared image shows the Rosette nebula, a star-forming region more than 5000 ly away in the constellation Monoceros. Lurking inside this nebula are so-called 'danger zones'. These zones surround super hot stat
DIY simple and awesome Pencil Crossbow. are you freking kidding me right now!, I made this like 3 years ago! RIP-OFF wow . I am just disappointed right now. It's actually called the Tharp! << you're really upset about the name?
As solid and unshakable as we think our civilization is, its grip on nature is tenuous at best. If any cracks appear in the faces of our buildings or our machines, nature is quick to move in and take over. With this in mind, here are 21 photos of places a
HP: The Chamber of Secrets
Slytherin aesthetics are my aesthetic tbh
Hagrid and Norbert by LadyDesiree
No you numbskull you can't take this picture anymore because the sunrays displayed were made visible through the smoke fumes, so because today smoking in grand central station is ILLEGAL that's why you can't take this picture.