The cellular architecture of skeletal muscles is uniquely adapted to meet its high energy functions. Its cellular space, known as the sarcoplasm, is rigidly organized. Glycogen granules, branching bundles of glucose, float beneath the cell surface, where they can more readily store sugars that are brought into the cell. When needed, they release their stores to the rows of mitochondria sitting immediately below which use the glucose, as well as oxygen, to generate ATP, the molecular currency of energy.
Glycogen granules are highly regulated machines. Nestled directly into the starchy brambles are enzymes that govern the formation, elongation, and shortening of the branches. These and other proteins ensure that we replenish and maintain our energy stores and that we can access them quickly when we need them.
Concept art and storyboards - Geoffrey L Cheung
Media - Adobe Photoshop
Agency - Anatomical Travelogue, The Visual MD
Collaborators - Project management: Laura Gibson, Erin Daniel.