medula bedeutet auf Englisch

pith▼(soft spongy substance in the center of the stems of many plants and trees)
noun
[UK: pɪθ] [US: ˈpɪθ]

medullary▼(pertaining to, consisting of or resembling marrow)
adjective
[UK: me.ˈdʌ.lə.rɪ] [US: ˈmed.le.riː]