Abstract：
:The organization of the system of perivascular space around the capillaries in the neurohypophysis was studied in the adult and developing laboratory mouse by the use of histological silver impregnation and electron microscopical techniques. In the median eminence short and long extensions, arising mainly from the shallow space around capillary loops of the primary plexus of the portal system, formed radiations into the adjacent neural tissue of the external zone. The tissue of the neural lobe was separable into non-vascular regions dominated by undilated portions of neurosecretory nerve fibres and pituicytes, and neurovascular regions with perivascular space extensions forming an extensive system of connections between neighbouring capillaries. In the median eminence, the system of extensions of the perivascular space was estimated to increase the neurovascular contact surface area by at least 50%, implying an increased efficiency of the organ without a notable increase of its volume. The possibility that the ramifications of the perivascular space imply an enhanced uptake rate into the bloodstream and a subsequent increased concentration of the neurohormones in the portal blood, was discussed. During development of the median eminence, differentiation of perivascular space extensions of the adult type started in the juvenile of about three weeks of age, when shallow capillary loops had been formed. In the neural lobe, perivascular space ramifications were already present when the internal capillaries were formed and were fairly frequent in ten-day young. At the age of three to four weeks the organization of the system was similar to that of the adult animal.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Enemar A,Eurenius Ldoi
10.1007/BF00237730subject
Has Abstractpub_date
1979-06-08 00:00:00pages
99-116issue
1eissn
0302-766Xissn
1432-0878journal_volume
199pub_type
杂志文章abstract：:To further evaluate the role of autonomic ganglia in the regulation of pelvic visceral activity, the neural elements in the major pelvic ganglion of the male rat have been studied with histochemixal and electron microscopic techniques. The principal findings are that the ganglion is composed of cholinergic and adrener...
journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1975-05-27 00:00:00
abstract：:Intercellular junctions in the young mouse ovary were examined by electron microscopy utilizing freeze-fracture and thin-sectioning techniques. Projections from the granulosa cells adjacent to the oocyte (GI) traverse the zona pellucida and form small gap junctions on the oocyte surface. On the P-face of these cells, ...
journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
pub_type： 杂志文章,评审
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216747
更新日期：1981-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1979-02-28 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1998-03-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1975-11-12 00:00:00
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journal_title：Cell and tissue research
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更新日期：1995-05-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章,评审
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更新日期：1997-11-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00232150
更新日期：1980-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233269
更新日期：1979-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：1994-04-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00210112
更新日期：1981-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00234784
更新日期：1980-01-01 00:00:00
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journal_title：Cell and tissue research
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doi：10.1007/s00441-013-1660-4
更新日期：2013-09-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00223221
更新日期：1978-07-13 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章,评审
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：2004-05-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
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更新日期：2007-07-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00236359
更新日期：1979-01-30 00:00:00
abstract：:The thyroid cells of the cream hamster, characterized by abundance of microtubules and stratification of the organelles, undergo a particular evolution when the animals grow older. These changes are characterized by an increase of the number of lysosomes which in extreme cases become so prominent that they occupy the ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00215124
更新日期：1976-02-06 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-015-2190-z
更新日期：2015-09-01 00:00:00
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journal_title：Cell and tissue research
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doi：10.1007/s00441-020-03286-7
更新日期：2020-09-23 00:00:00
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journal_title：Cell and tissue research
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更新日期：2011-04-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-015-2265-x
更新日期：2016-02-01 00:00:00
