ðə njˈuːtɹiənt ˈɑːɹɾɚɹi ɑːɹtˈɪɹiə njuːtɹˈɪʃə, ɔːɹ sˈɛntɹəl ˈɑːɹɾɚɹi, jˈuːʒuːəli ɐkˈʌmpənid baɪ wˈʌn ɔːɹ tˈuː njˈuːtɹiənt vˈeɪnz, ˈɛntɚz ðə bˈoʊn θɹuː ðə njˈuːtɹiənt fˈɔːɹeɪmˌɛn, ɹˈʌnz oʊblˈiːkli θɹuː ðə kˈɔːɹɾɛks, sˈɛndz bɹˈæntʃᵻz ˈʌpwɚd ænd dˈaʊnwɚd tə ðə bˈoʊn mˈæɹoʊ, wˌɪtʃ ɹˈæmᵻfˌaɪ ɪnðɪ ˌɛndoʊstˈiːəm ðə vˈæskjʊlɚ mˈɛmbɹeɪn lˈaɪnɪŋ ðə mˈɛdəlɚɹi kˈævᵻɾi ænd ɡˈɪv twˈɪɡz tə ðɪ ɐdʒˈɔɪnɪŋ kənˈælz.
The nutrient artery (arteria nutricia, or central artery), usually accompanied by one or two nutrient veins, enters the bone through the nutrient foramen, runs obliquely through the cortex, sends branches upward and downward to the bone marrow, which ramify in the endosteum–the vascular membrane lining the medullary cavity–and give twigs to the adjoining canals.