The parts of a text that you can easily see with your eyes (its title, bolded words, and captions for images) are called:
headings.
Explanation:
We can define a heading as the title, subtitle, topic, or subject of a piece of written work. It usually contains a few words that describe the subject matter of the article. Each heading should concisely and clearly communicate the content of the section using at most one line of words. Three types of headings have been recognized. They include Question Headings, Statement Headings, and Topic Headings.
A language branch exists within a family, comprising a collection of languages that are related through a common ancestral language that existed several thousand years ago.
