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T-tubules (transverse tubules) are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells.With membranes that contain large concentrations of ion channels, transporters, and pumps, T-tubules permit rapid transmission of the action potential into the cell, and also play an important role in regulating cellular calcium concentration.
Plants vs. Zombies is a great strategic game that puts your skills to the test as you protect your home from hordes of zombies. Put away your traditional thoughts of grabbing a gun or bat and ...
Plants vs. Zombies is a video game franchise developed by PopCap Games, a subsidiary of Electronic Arts (EA). The series follows the affiliates of David "Crazy Dave" Blazing as they use his plants to defend against a zombie invasion, led by Dr. Edgar George Zomboss.
Plants vs. Zombies is a 2009 tower defense video game developed and published by PopCap Games. First released for Windows and Mac OS X, the game has since been ported to consoles, handhelds, and mobile devices. The player takes the role of a homeowner amid a zombie apocalypse.
The z-line defines the borders of each sarcomere and act as the connection point between the thin filaments. The t-tubules and sarcoplasmic reticulum are used in conjunction to receive and direct the calcium ions and cause contraction. Once contracted, the clear H-zone between the actin filaments disappears as the filaments move towards each other.
Plants vs. Zombies: Garden Warfare 2 is a third-person shooter, similar to Garden Warfare.Gameplay largely remained the same as its predecessor, with the addition of 10 (6 are immediately accessible, 2 which must be unlocked through a series of tough trials and 2 which can only be played within the game's endless mode) new plant and zombie classes, a zombie version of Garden Ops, titled ...
Plants vs. Zombies 2 (originally subtitled: It's About Time) is a 2013 free tower defense video game developed by PopCap Games and published by Electronic Arts. It is the sequel to Plants vs. Zombies , and was released worldwide on Apple App Store on August 15, 2013, and Google Play on October 23, 2013.
In the histology of skeletal muscle, a triad is the structure formed by a T tubule with a sarcoplasmic reticulum (SR) known as the terminal cisterna on either side. [1] Each skeletal muscle fiber has many thousands of triads, visible in muscle fibers that have been sectioned longitudinally. (This property holds because T tubules run ...