Questions & Answers about Артерія несе кров.
Нести is the infinitive, meaning to carry.
Несе is the 3rd-person singular present-tense form, used because артерія is singular.
A few forms of нести:
- я несу́ — I carry / am carrying
- ти несе́ш — you carry / are carrying
- він / вона / воно несе́ — he / she / it carries / is carrying
- ми несемо́
- ви несете́
- вони несу́ть
So Артерія несе кров uses the correct verb form for it carries.
It can mean either, depending on context.
Ukrainian present tense often covers both:
- carries
- is carrying
In this sentence, it is most naturally understood as a general fact, so in English it is usually carries rather than is carrying.