Notes. pleura. serous membrane lining the pleural cavity. there are two types of pleura: visceral pleura covers the lungs, parietal pleura lines the inner surfaces of the walls of pleural cavity; parietal pleura is sensitive to pain but visceral pleura is not sensitive to pain.
The pronoun 'our' is the first person, the speaker  and one or more other people.   The pronoun 'our' is the first person, plural, possessive  adjective, placed before aâ¦ noun to show that the noun  belongs to the speaker and one or more others.    Example: John and I came from Maine.
Third person refers to the person or people being spoken or written about (he, she, and it for singular, they for plural). The person of a pronoun is also demonstrated in the chart Cases of the Personal Pronouns. As you will see there, each person can change form, reflecting its use within a sentence.