USMLE Forums - View Single Post - T tubule triad structure!
View Single Post
Old 07-15-2010
Seetal's Avatar
Seetal Seetal is offline
USMLE Forums Master
Steps History: Step 1 Only
Posts: 919
Threads: 134
Thanked 1,406 Times in 390 Posts
Reputation: 1429
Send a message via MSN to Seetal

hi kabutar111,

it is invaginated because with the NTs ACh, the muscarinic receptors at the NMJ are triggered n this causes release of Ca2+ to cause muscle contractions. without a stimulation n also with depletion of ATP, muscle contractions do not occur. which is y in myasthenia gravis, where the ACh receptors are blocked by autoantibodies, the muscles become paralyzed.
Reply With Quote