Meaning & Definition of word "Medulla"
to
Medulla
/məˈdʌlə/
noun:
- 1. The inner or central part of an organ or structure, especially of the kidneys or adrenal glands.
- Example: The medulla of the kidney plays a crucial role in the filtration of blood.
- 2. A part of the brainstem that is responsible for regulating several vital functions, including breathing and heart rate.
- Example: Damage to the medulla can impair vital bodily functions, leading to life-threatening conditions.
- 3. The innermost part of a hair, bone, or other structure.
- Example: The medulla of the hair shaft is surrounded by the cortex and cuticle.
Etymology
From Latin 'medulla' meaning 'marrow' or 'pith'.
Common Phrases and Expressions
medulla oblongata:
The part of the brain that controls autonomic functions.
medullary cavity:
The central cavity of bone shafts where red and yellow marrow are stored.
Related Words
adrenal medulla:
The inner part of the adrenal gland that produces hormones.
medullary:
Relating to the medulla.