Nounessence; quintessence; spirit; soul; heart; pith (and marrow)

Nounspinal cord

Nounmedulla; pith · marrow

Nounbrain; skull; head

Noun, Noun which may take the genitive case particle 'no'medulla oblongata

Nounpulp (of a tooth); dental pulp

Noun, Noun which may take the genitive case particle 'no'essence; kernel; spirit; pith

Nounbrain; encephalon

Nounchalcedony

Nouncervical spinal cord; cervical cord

Noundemyelination

Nounmarrow; pith · centre; center; nucleus; hub · bottom of one's heart

Nounpith; medulla

Nounlithomarge

Nounbloodstone

Nounchrysoprase

Nouncarnelian

Nounred bone marrow; red marrow