renal medulla


medulla

 [mĕ-dul´ah] (L.) 1. the inmost part of a structure or organ.2. medulla oblongata.3. marrow. adj., adj med´ullary.adrenal medulla the inner portion of the adrenal gland, where epinephrine and norepinephrine are produced.medulla of bone marrow" >bone marrow.medulla oblonga´ta that part of the hindbrain continuous with the pons above and the spinal cord below; it houses nerve centers for both motor and sensory nerves, where such functions as breathing and the beating of the heart are controlled. See also brain.medulla os´sium marrow" >bone marrow.renal medulla the inner part of the substance of the kidney, composed chiefly of tubules" >collecting tubules, and organized into a group of structures called the pyramids" >renal pyramids.medulla spina´lis (medulla spina´lis) spinal cord.medulla of thymus the central portion of each lobule of the thymus; it contains many more reticular cells and far fewer lymphocytes than does the surrounding cortex.

re·nal me·dul·la

[TA] the inner, darker portion of the kidney parenchyma consisting of the renal pyramids. Synonym(s): medulla renalis [TA], medulla of kidney

re·nal me·dul·la

(rē'năl mĕ-dŭl'ă) [TA] The inner, darker portion of the kidney parenchyma consisting of the renal pyramids.