De ogen | Samenvatting

📌 The eye explained Description: 💡 How does your eye work and how do you actually see? In this video, you'll discover step by step what parts the eye is made up of, what their functions are, how your pupil reacts to light, and how your lens adapts to different distances. 📚 In this video you will learn: • The parts of the eye and their functions • How the pupillary reflex works • What accommodation is and how you focus • The difference between rods and cones in your retina • What the blind spot and the macula are ⏱ Chapters: 0:00 Intro & overview of the senses 0:42 Function of the eyes 1:25 Protective parts: eyelashes, eyebrows, eyelids, tear glands 3:24 Conchae, eye muscles, iris & pupil 5:25 Drainage of tear fluid to the nasal cavity 5:59 Cross-section of the eye: cornea, pupil, lens, vitreous body, retina 6:31 Choroid & blood supply 6:55 Retina: rods, cones, threshold 8:42 Blind spot & macula 9:23 Accommodation – focusing near & far 11:13 Pupillary reflex – Regulating light incidence 12:26 Longitudinal muscles & circular muscles in the iris 12:54 Reflexively adjusting pupil size 📝 Summary: The eye receives light stimuli and converts them into impulses for the brain. The lens adjusts its shape (accommodation) to focus, and the pupil changes size (pupillary reflex) to let in the right amount of light. Rods in the retina perceive shades of gray, while cones ensure color and sharp vision. 🔗 Learn more:    • Prikkels en impulsen | Samenvatting      • De huid | Samenvatting      • Ruiken & Proeven | Zo werken je neus en to...      • Zo werkt het zenuwstelsel | Van prikkel, n...   🌐 More explanation videos at: www.biologiemetjoost.nl #biology #eye #pupillary reflex #accommodation #senses #rods #cones #retina #education #learning #biology exam