medulla


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Related to medulla: adrenal medulla

brain stem

brain stem, lower part of the brain, adjoining and structurally continuous with the spinal cord. The upper segment of the human brain stem, the pons, contains nerve fibers that connect the two halves of the cerebellum. It is vital in coordinating movements involving right and left sides of the body. Below the pons and continuous with the spinal cord is the medulla, which transmits ascending and descending nerve fibers between the spinal cord and the brain. The medulla also directly controls many involuntary muscular and glandular activities, including breathing, heart contraction, artery dilation, salivation, vomiting, and probably laughing. The nuclei of some of the nerves that originate in the brain are also located in the brain stem. Nerve fibers in the brain stem do not readily regenerate, hence injury may result in permanent loss of function. See also nervous system.
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medulla

[mə′dəl·ə]
(anatomy)
The central part of certain organs and structures such as the adrenal glands and hair.
Marrow, such as of bone or the spinal cord.
(botany)
Pith.
The central spongy portion of some fungi.
(neuroscience)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

medulla

1. Anatomy the innermost part of an organ or structure
2. Botany another name for pith
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
1991) which causes the K+ red reaction in medulla and soralia.
(a) The relationship between the mass (lower right) and the renal medulla (left) and renal pelvis (urothelial lining, upper right) is demonstrated.
The second hormone produced by the adrenal medulla is norepinephrine, also known as noradrenaline.
One-third of the donor ovary was sutured onto the raw medulla of each recipient ovary, and the remaining third was frozen.
Ursula Manvatkar, managing director of Medulla and cofounder of Care2Share UAE, added: "One camp that housed 320 of the displaced workers were given clothes and other essential supplies such as bedsheets, pillow covers, shoes, blankets, jackets, travel bags and kitchen items."
Request TOC of this Report- https://www.factmr.com/connectus/sample?flag=T&rep_id=3222 Epinephrine is an active hormone produced by Adrenal Medulla. Epinephrine is responsible for stimulating both alpha and beta-adrenergic systems.
Serotonin receptors in the medulla oblongata of the human fetus and infant: The analytic approach of the international safe passage study.
On further analysis, it was seen that specific central regions and neurotransmitter systems in the hypothalamus and medulla participate in the central processing of the action of acupuncture.
Table-I: Frequencies and percentages of vascular congestion in medulla between the control and experimental groups.