Lecture 03: Structural And Contactility Flashcards Preview

PSIO 485 Exam 01 > Lecture 03: Structural And Contactility > Flashcards

Flashcards in Lecture 03: Structural And Contactility Deck (7)
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1
Q

What are the 3 types of SR

A

Corbular
Junctional
Network

2
Q

What is the size of a human cardiac monocyte? Diameter?

A

10-20 um

50-100 um

3
Q

What is the differences between G-actin and F-actin?

A

G-actin is globular and sticks to form F-actin, which look like long strands of pearls

4
Q

What are they complexes attached to toponin?

A

Troponin C, which binds Ca++
Troponin I, which is inhibitory
Troponin T, which binds to tropomyosin

5
Q

What are thick filamanets called?

Thin Filaments?

A

Myosin

Acvtin

6
Q

When does contraction occur?

A

Every cycle of cross-bridge formation/detachment which break down 1 ATP

7
Q

What causes Rigor Mortis?

A

lack of ATP that attach myosin heads to actin