WebAbout Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ... WebThe Brain - Science Quiz: The term “gray matter” is an unflattering term for such an important organ, but that’s what the brain looks like—a gray blob. That blob is actually a sophisticated neural command center for the entire body, controlling all functions and enabling our thoughts, emotions, fears, and dreams. This science quiz game will help …
Eye Anatomy Blood supply - Orbit - Extraocular muscles
WebUse iris scissors to cut from the lateral canthus to the rim of the orbit, about 1 to 2 cm (canthotomy). Cut the inferior and sometimes both crus of the lateral canthal ligament (cantholysis). Most experts recommend starting with the inferior crus. Lift the lateral portion of lower eyelid. With the scissors pointing away from the globe ... WebThe iris is made of muscles and nerves. The nerves and muscles in your iris work on their own without you thinking about them (parasympathetically) to control the size of your pupil. Your iris is filled with a fluid called aqueous humor. Your eye constantly produces and drains aqueous humor to maintain its shape, size and pressure. happy resident day
Cornea - Definition and Detailed Illustration - All About Vision
WebApr 20, 2024 · First, light passes through the cornea (the clear front layer of the eye). The cornea is shaped like a dome and bends light to help the eye focus. Some of this light enters the eye through an opening called the pupil (PYOO-pul). The iris (the colored part of the eye) controls how much light the pupil lets in. Next, light passes through the lens ... WebApr 12, 2024 · The orbit appears as a quadrangular pyramidal cavern in the upper face. It is made up of four facial bones and three cranial bones: maxilla, zygomatic bone, lacrimal bone, palatine bone, frontal bone, ethmoid bone, and sphenoid bone . The base of this pyramid opens anteriorly onto the face, while the apex is pointed posteromedially … WebIris: regulates the amount of light that enters your eye. It forms the coloured, visible part of your eye in front of the lens. Light enters through a central opening called the pupil. Pupil: the circular opening in the centre of the iris through which light passes into the lens of the eye. The iris controls widening and narrowing (dilation and ... happy resolution day message