Question

Question 22

When comparing cardiac muscle cells and skeletal muscle cells:

Select one:

a. only skeletal muscle is striated.

b. both are under voluntary control.

c. both possess intercalated discs.

d. only skeletal muscle contains actin and myosin.

e. only cardiac muscle contains autorhythmic cells.

Answer 1

Answer :- E.  only cardiac muscle contains autorhythmic cells.

Explanation : cardiac cell Contain Autorhythmic cells having peperty is self‐excitable that means autorhythmic cell have the ability to generate an action potential without any external stimulation by the neuron . Example is SA node having ability to generate impulse 70-75 times per minute .

Both cardiac and sketal muscle is striated and cardiac is involuntary in nature .
Both skeletal muscle and cardiac cell contains actin and myosin...