Excitation-Contraction Coupling (ECC)

0.0(0)
studied byStudied by 1 person
0.0(0)
full-widthCall Kai
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
GameKnowt Play
Card Sorting

1/5

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced
Call with Kai

No study sessions yet.

6 Terms

1
New cards

First step of ECC

• Action potential travels along sarcolemma → down T-tubules.

2
New cards

Second step of ECC

• Signal triggers sarcoplasmic reticulum (SR) to release Ca²■.

3
New cards

Third step of ECC

• Ca²■ binds to troponin, moving tropomyosin off actin binding sites.

4
New cards

Fourth step of ECC

• Myosin binds to actin → cross-bridge cycle starts.

5
New cards

Fifth step of ECC

• When stimulation ends → Ca²■ pumped back into SR.

6
New cards

Sixth step of ECC

• Troponin-tropomyosin block returns → muscle relaxes.