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  2. Iris (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Iris_(anatomy)

    The iris consists of two layers: the front pigmented fibrovascular layer known as a stroma and, behind the stroma, pigmented epithelial cells.. The stroma is connected to a sphincter muscle (sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles (dilator pupillae), which pull the iris radially to enlarge the pupil, pulling it in folds.

  3. Stroma of iris - Wikipedia

    en.wikipedia.org/wiki/Stroma_of_iris

    Structure of the iris and surrounding parts showing the stroma of iris (stroma iridis). The stroma connects to a sphincter muscle ( sphincter pupillae ), which contracts the pupil in a circular motion, and a set of dilator muscles ( dilator pupillae ) which pull the iris radially to enlarge the pupil, pulling it in folds.

  4. Iris sphincter muscle - Wikipedia

    en.wikipedia.org/wiki/Iris_sphincter_muscle

    The iris sphincter muscle (pupillary sphincter, pupillary constrictor, circular muscle of iris, circular fibers) is a muscle in the part of the eye called the iris.It encircles the pupil of the iris, appropriate to its function as a constrictor of the pupil.

  5. Ciliary muscle - Wikipedia

    en.wikipedia.org/wiki/Ciliary_muscle

    The ciliary muscle is an intrinsic muscle of the eye formed as a ring of smooth muscle [3] [4] in the eye's middle layer, the uvea (vascular layer). It controls accommodation for viewing objects at varying distances and regulates the flow of aqueous humor into Schlemm's canal .

  6. Ciliary body - Wikipedia

    en.wikipedia.org/wiki/Ciliary_body

    The ciliary body is a ring-shaped thickening of tissue inside the eye that divides the posterior chamber from the vitreous body. It contains the ciliary muscle , vessels, and fibrous connective tissue.

  7. Your Body Never Forgets Muscle. So Here's How Long It ... - AOL

    www.aol.com/body-never-forgets-muscle-heres...

    Even if your neural pathways remember how to perform an activity, your cardiovascular system and supporting structures (connective tissues, muscles, bones) may not be ready to handle the same ...

  8. If You're On Ozempic, Experts Say You're Probably Not ... - AOL

    www.aol.com/youre-ozempic-experts-youre-probably...

    When you're watching the numbers on the scale drop, you're not just losing fat, Dr. Shah explains. “You’re also losing connective tissue and muscle mass—those are things we don’t want to ...

  9. Eye development - Wikipedia

    en.wikipedia.org/wiki/Eye_development

    Cells from both the mesodermal and the ectodermal tissues contribute to the formation of the eye. Specifically, the eye is derived from the neuroepithelium, surface ectoderm, and the extracellular mesenchyme which consists of both the neural crest and mesoderm. [2] [3] [4] Neuroepithelium forms the retina, ciliary body, iris, and optic nerves.