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The Resource The ocular circulation, Jeffrey W. Kiel, (electronic book)

The ocular circulation, Jeffrey W. Kiel, (electronic book)

Label
The ocular circulation
Title
The ocular circulation
Statement of responsibility
Jeffrey W. Kiel
Creator
Subject
Language
eng
Summary
This presentation describes the unique anatomy and physiology of the vascular beds that serve the eye. The needs for an unobstructed light path from the cornea to the retina and a relatively fixed corneal curvature and distance between refractive structures pose significant challenges for the vasculature to provide nutrients and remove metabolic waste.To meet these needs, the ocular vascular beds are confined to the periphery of the posterior two thirds of the eye and a surrogate circulation provides a continuous flow of aqueous humor to nourish the avascular cornea, lens and vitreous compartment. The production of aqueous humor (and its ease of egress from the eye) also generates the intraocular pressure (IOP), which maintains the shape of the eye. However, the IOP also exerts a compressing force on the ocular blood vessels that is higher than elsewhere in the body. This is particularly true for the intraocular veins, which must have a pressure higher than IOP to remain patent, and so the IOP is the effective venous pressure for the intraocular vascular beds. Consequently, the ocular circulation operates at a lower perfusion pressure gradient than elsewhere in the body and is more at risk for ischemic damage when faced with low arterial pressure, particularly if IOP is elevated. This risk and the specialized tissues of the eye give rise to the fascinating physiology of the ocular circulations
Member of
Cataloging source
CaBNvSL
http://library.link/vocab/creatorName
Kiel, Jeffrey W
Dewey number
617.7
Illustrations
illustrations
Index
no index present
LC call number
RE720
LC item number
.K546 2011
Literary form
non fiction
Nature of contents
  • dictionaries
  • abstracts summaries
  • bibliography
Series statement
Synthesis lectures on integrated systems physiology, from molecule to function
Series volume
12
http://library.link/vocab/subjectName
Eye
Target audience
specialized
Label
The ocular circulation, Jeffrey W. Kiel, (electronic book)
Instantiates
Publication
Bibliography note
Includes bibliographical references (p. 61-68)
Color
multicolored
Contents
1. Introduction -- 2. Anatomy -- General eye features -- Vascular supply and drainage -- Innervation -- 3. Blood flow measuring techniques -- 4. Ocular perfusion pressure, IOP and the ocular Starling resistor effect -- 5. Ocular blood flow effects on IOP -- 6. Local control of ocular blood flow -- Types of local control -- Myogenic local control -- Metabolic local control -- Flow-mediated vasodilation -- Flow control by intercellular conduction -- Ocular local control -- Optic nerve head (ONH) -- Choroid -- Retina -- Ciliary body -- Iris -- 7. Neural control of ocular blood flow -- 8. Summary -- Bibliography -- Author's biography
Control code
201012ISP012
Dimensions
unknown
Extent
1 electronic text (x, 69 p.)
File format
multiple file formats
Form of item
electronic
Isbn
9781615041688
Other physical details
ill., digital file
Reformatting quality
access
Specific material designation
remote
Label
The ocular circulation, Jeffrey W. Kiel, (electronic book)
Publication
Bibliography note
Includes bibliographical references (p. 61-68)
Color
multicolored
Contents
1. Introduction -- 2. Anatomy -- General eye features -- Vascular supply and drainage -- Innervation -- 3. Blood flow measuring techniques -- 4. Ocular perfusion pressure, IOP and the ocular Starling resistor effect -- 5. Ocular blood flow effects on IOP -- 6. Local control of ocular blood flow -- Types of local control -- Myogenic local control -- Metabolic local control -- Flow-mediated vasodilation -- Flow control by intercellular conduction -- Ocular local control -- Optic nerve head (ONH) -- Choroid -- Retina -- Ciliary body -- Iris -- 7. Neural control of ocular blood flow -- 8. Summary -- Bibliography -- Author's biography
Control code
201012ISP012
Dimensions
unknown
Extent
1 electronic text (x, 69 p.)
File format
multiple file formats
Form of item
electronic
Isbn
9781615041688
Other physical details
ill., digital file
Reformatting quality
access
Specific material designation
remote

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