Aqueous Humor | Production, Circulation & Drainage Part 1/2
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- čas přidán 9. 02. 2016
- Aqueous Humor | Production, Circulation & Drainage Part 1/2
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▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
(0:00-4:36)
Schematic diagram of an eyeball; ciliary body, iris, lens, cornea etc.
Vitreous Body/Humor location, structure, constitution.
Vitreous humor as "non-freely circulating", "non-draining" fluid.
(4:37-7:58)
Aqueous Humor (AH): "freely" flowing, continuously draining fluid.
Function/Purpose of the 2 fluids: maintaining eyeball shape & distension; Intraocular pressure (IOP) maintenance.
Aqueous Humor; nutrition for avascular structures in eye.
(7:59-18:17)
Production of Aqueous Humor; its mechanism of secretion.
Ciliary Body structure; Pars Plana, Pars Plicata.
Ciliary Epithelium; non-pigmented, major role in AH formation.
Steps in AH production:
1-Active secretion of Na+.
2-Passive secretion of Cl- & HCO3-; H2O follows.
(18:19-22:03)
Drainage of AH; circulation & replacement.
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