• Sign In
  • Help
  • My Basket0
The Ocular Circulation - Colloquium Series on Integrated Systems Physiology (Paperback)
  • The Ocular Circulation - Colloquium Series on Integrated Systems Physiology (Paperback)
zoom

The Ocular Circulation - Colloquium Series on Integrated Systems Physiology (Paperback)

(author), (series editor), (series editor)
£32.95
Paperback 81 Pages / Published: 01/02/2011
  • We can order this

Usually despatched within 2 weeks

  • This item has been added to your basket

Check Marketplace availability

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.

Publisher: Morgan & Claypool Publishers
ISBN: 9781615041688
Number of pages: 81
Weight: 158 g
Dimensions: 235 x 187 x 4 mm

You may also be interested in...

The Body Remembers
Added to basket
Stem Cells: A Very Short Introduction
Added to basket
Principles of Anatomy and Physiology
Added to basket
Nursery All About Me
Added to basket
The Pocket Atlas Of The Moving Body
Added to basket
The Physiology Coloring Book
Added to basket
Physiology Cases and Problems
Added to basket
Exercise Physiology
Added to basket
Muscle Energy Techniques
Added to basket
Delavier's Core Training Anatomy
Added to basket

Reviews

Please sign in to write a review

Your review has been submitted successfully.