Human brain in the midline on top of the brain. Blood from here joins with blood from the straight sinus at the confluence of sinuses. Blood from here drains into the left and right transverse sinuses. These then drain into the sigmoid sinuses, which receive blood from the cavernous sinus and superior and inferior petrosal sinuses. The sigmoid drains into the large internal jugular veins. The larger arteries throughout the brain supply blood to smaller capillaries. These smallest of blood vessels in the brain, are lined with cells joined by tight junctions and so fluids do not seep in or leak out
The Awkward Yeti of "The Awkward Yeti". "Heart and Brain" features Lars' anthropomorphized heart and brain as the two main characters. In the webcomic, the heart follows its feelings and emotions, chasing down butterflies and getting excited about kittens, while the brain is concerned about adult responsibility. While the heart skips to emotional need, the brain brings in reason and logic for why the heart's action are ill-advised. Lindsey Holmes described "Heart and Brain" as "the internal tennis match we often face between our romantic hearts and our realistic brains." The characters of "Heart and Brain" are considered very relatable, as they cover