Publication: Developmental anatomy of the primary olfactory pathway in the opossum Monodelphis domestica
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Date
1997
Authors
Chuah, M.I. ; Tennent, R. ; Teague, R.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
It has been shown in previous studies that the
marsupial central nervous system is born at a relatively
immature state. Although olfaction is thought to play a
role in guiding the locomotion of the newborn, the
cellular substrates on which this notion is based have not
been systematically investigated. This review article
surnmarises the anatomical development of the primary
olfactory pathway in the postnatal Monodelphis. The
olfactory epithelium and bulb appear morphologically
immature at birth although some of the olfactory neurons
are shown to express olfactory marker protein. The
olfactory tissues subsequently undergo a rapid sequence
of developmental events during the first two postnatal
weeks. The evidence shows that the marsupial and
eutherian olfactory system share a similar temporal
sequence of developmental processes although the
former proceeds at a lag time of about 10-14 days
compared to that of mice (using the date of birth as a
common reference point). Much physiological and
behavioral studies remain to be done before we can be
certain about the time at which full functionai maturity is
attained in this system.
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