12. Cardiac & smooth muscles

Question 1

Cardiac muscle

Involuntary 
Cannot be ;- 
Functional unit :- 
Gap juction protein :- 
Single nucleus 
Fuctional synsytium :- 

Cardiac muscle elasticity is due to :-

Titian protein mutation :-

Answer 1

45

Question 2

Unique features of cardiac muscles :- 
1. 
For contraction :- 
2. 
Phospholamban :- 
Nor epinephrine :- 

Lusitrophy :-

Answer 2

45-46

Question 3

Smooth muscle :-

No striating
Mode of contraction:-

Pacemaker :- 
Absence of :- 
1. 
2. 
3. 
Dense bodies 
Calmidulin

Answer 3

46

Question 4

Types of smooth muscles :-
1.
2.
Examples

Answer 4

46

Question 5

Regulation of Smooth muscle contraction & relaxation
Due to :-

Myosin based enzyme regulation

MLCK :-
MLCP :-

Answer 5

46

Question 6

Unique features of smooth muscle :- 
1. No Titian 
Plasticity 
2. Prolonged state of contraction :- 
Latch bridge phenomenon :-

Answer 6

47