different between tectum vs mesencephalon

English

Etymology

From Latin t?ctum (“roof”), from teg? (“I cover”), cognate with Ancient Greek ????? (tégos, “roof; any covered room of a house”). Doublet of tect.

Pronunciation

• IPA^(key): /?t?k.t?m/

Noun

tectum (plural tecta)

1. (neuroanatomy) The dorsal portion of the midbrain of vertebrates; in mammals, containing the superior colliculus and inferior colliculus
2. The interconnected outer surface of a spore.

Derived terms

• infratectum

See also

• tegmentum
• periaqueductal grey

References

• Bear et al. Neuroscience, Exploring the Brain Co. 2001, Lippincot Williams and Wilkins
• tectum at OneLook Dictionary Search

Latin

Etymology

From teg? (“I cover”), cognate with Ancient Greek ????? (tégos, “roof; any covered room of a house”).

Pronunciation

• (Classical) IPA^(key): /?te?k.tum/, [?t?e?kt????]
• (Ecclesiastical) IPA^(key): /?tek.tum/, [?t??kt?um]

Noun

t?ctum n (genitive t?ct?); second declension

1. roof
2. ceiling
3. canopy

Declension

Second-declension noun (neuter).

Derived terms

• t?ctulum

Related terms

• t?ct?ra
• teg?

Descendants

References

• tectum in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• tectum in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• tectum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• Carl Meissner; Henry William Auden (1894) Latin Phrase-Book?^[1], London: Macmillan and Co.

English

Etymology

From Latin, from Ancient Greek ????? (mésos, “middle”) + ????????? (enképhalos, “cephalon, brain”); see also cephalon.

Pronunciation

• IPA^(key): /?m?z?n?s?f?l?n/
• IPA^(key): /?m?z?n?s?f?l?n/

Noun

mesencephalon (plural mesencephalons or mesencephala)

1. A part of the brain located rostral to the pons and caudal to the thalamus and the basal ganglia, composed of the tectum (dorsal portion) and the tegmentum (ventral portion).

Synonyms

• midbrain

Meronyms

• tectum
• tegmentum

Derived terms

• hemimesencephalon
• mesencephalic

Translations