transverse tubule การใช้

• Together, two terminal cisternae and a transverse tubule form a triad.
• In between two terminal cisternae is a tubular infolding called a transverse tubule ( T tubule ).
• These are generally located at the Z lines so that they form grooves and transverse tubules emanate.
• Ca v 1.1 is a voltage-dependent calcium channel found in the transverse tubule of muscles.
• RYR1 functions as a sarcoplasmic reticulum, as well as a connection between the sarcoplasmic reticulum and the transverse tubule.
• On either side of the transverse tubules are Terminal cisterna enlargements of smooth endoplasmic reticulum termed sarcoplasmatic reticulum ( SR ) in muscle.
• A transverse tubule surrounded by two SR cisterna are known as triads, and the contact between these structures is located at the junction of the A and I bands.
• This first major discovery of Franzini-Armstrong s was that transverse tubules open at the cell surface, and this is an essential discovery in understanding how muscle is activated to contract.
• A special feature of the sarcolemma is that it invaginates into the cytoplasm of the muscle cell, forming membranous tubules radially and longitudinally within the fiber called transverse tubules ( T-tubules ).
• The original envaginations form a series of transverse tubules each of which communicates by means of a funnel-shaped ciliated opening with the abdominal cavity, and in the course of each duct a glomerulus also is developed.
• This network is composed of groupings of two dilated end-sacs called terminal cisternae, and a single transverse tubule, or T tubule, which bores through the cell and emerge on the other side; together these three components form the triads that exist within the network of the sarcoplasmic reticulum, in which each T tubule has two terminal cisternae on each side of it.