Similar to skeletal muscle tissue, cardiac muscle does not regenerate to a great extent. Dead cardiac muscle tissue is replaced by scar tissue, which cannot contract. As scar tissue accumulates, the heart loses its ability to pump because of the loss of contractile power.
Answer:
What do you mean? I don't understand.
Answer:
The correct answer is B)Deep petrosal nerve
Explanation:
Postganglionic sympathetic fibers in the nerve of the pterygoid canal originate from the deep petrosal nerve. This corresponds to an internal carotid plexus and is formed by postganglionic fibers of the upper cervical ganglion; transports sympathetic postganglionic fibers directed to the blood vessels.
Answer: b
Explanation:
A isn't true because it doesn't always result in new phobias. C isn't true because new situations can cause stress or anxiety. D isn't true because there are other ways to solve anxiety, like therapy and talking to people.
