how is cardiac muscle similar to smooth muscle

a. both are striated
b.they share no similarities
c. they share no differences
d. both have one central nucleus

Since this is not my area of expertise, I searched Google under the key words "cardiac smooth muscle" to get these possible sources:

https://www.google.com/search?client=safari&rls=en&q=cardiac+smooth+muscle&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.

To determine the similarities between cardiac muscle and smooth muscle, we need to understand their characteristics. Here's how to get the answer:

1. Understand the characteristics of cardiac muscle:
- Cardiac muscle is found only in the heart.
- It is an involuntary type of muscle, meaning it cannot be consciously controlled.
- Cardiac muscle cells are striated (have a striped appearance) due to the arrangement of proteins inside the cells.
- Each cardiac muscle cell has only one central nucleus.

2. Understand the characteristics of smooth muscle:
- Smooth muscle is found in various organs and structures, including blood vessels, the digestive tract, and the respiratory system.
- It is also an involuntary type of muscle.
- Unlike cardiac muscle, smooth muscle cells are not striated because they lack the same arrangement of proteins.
- Each smooth muscle cell also has one central nucleus.

Now that we have the characteristics of both cardiac and smooth muscle, we can compare them to identify the similarities.

The correct answer is (d) both have one central nucleus. Both cardiac muscle and smooth muscle have the same characteristic of having one central nucleus per cell. This is one similarity between the two types of muscle.

Therefore, the similarities between cardiac muscle and smooth muscle are that they both have one central nucleus per cell.