sinus venosus sclerae
A diagram shows the sinus venosus sclerae in a cross-section of the human eye.
Noun: * A circular canal in the eye: A specific anatomical structure, also known as the scleral venous sinus or canal of Schlemm. It is a tiny, ring-shaped channel located at the junction of the cornea and the sclera (the white of the eye). Its primary function is to drain the aqueous humor (the clear fluid in the front part of the eye) from the anterior chamber.
This term is used exclusively in medical and anatomical contexts, specifically in ophthalmology (the study of the eye). It describes a crucial part of the eye's drainage system. * Proper drainage through the sinus venosus sclerae is essential for maintaining normal intraocular pressure. * Blockage of the sinus venosus sclerae is a primary cause of open-angle glaucoma.
- The ophthalmologist explained that the patient's elevated eye pressure was likely due to a malfunction in the sinus venosus sclerae.
- During the detailed anatomy lecture, the professor pointed to a diagram to show the location of the sinus venosus sclerae.
- The surgery aimed to create a new drainage pathway for aqueous humor, bypassing the obstructed sinus venosus sclerae.
- The term is often used in discussions about the pathophysiology of glaucoma, a group of eye conditions that damage the optic nerve.
- In surgical contexts, procedures like a trabeculectomy or the implantation of a glaucoma drainage device are designed to address problems with the natural drainage function of the sinus venosus sclerae.
- Canal of Schlemm: The most common synonym used in clinical practice.
- Scleral venous sinus: A direct English translation of the Latin term, frequently used in anatomy textbooks.
- Trabecular meshwork: The spongy tissue located just in front of the sinus venosus sclerae; it filters the aqueous humor before it enters the canal. These two structures are functionally linked.
- Aqueous humor: The fluid that the sinus venosus sclerae drains.
- Intraocular pressure (IOP): The fluid pressure inside the eye, which is regulated by the balance of aqueous humor production and drainage via the sinus venosus sclerae.
- Canal of Schlemm
- Scleral venous sinus
- Trabecular meshwork
- Aqueous outflow pathway
- Anterior chamber angle (the region where the sinus venosus sclerae is located)
A diagram shows the sinus venosus sclerae in a cross-section of the human eye.
- a circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins