Photoreceptors - Study guides, Class notes & Summaries

_____________ occurs when a cell is injured and the cell body swells and shifts its nucleus to the periphery. - Chromatolysis ________________ occurs when a cell is injured and the cell body swells and shifts its nucleus to the periphery. - Chromatolysis _________________ fibers are fibers that connect one hemisphere to another. - Commissural ____________________ conduction occurs when an impulse jumps from node to node on an axon. BE SURE TO SPELL CORRECTLY - saltatory __________________...

IB Biology: Option A (Neurobiology) with Complete Solutions Neural tube - develops by neurulation - elongates as embryo grows - develops in first month of gestation (humans) Neurulation development of a dorsal nerve cord at an early stage in development in chordates Neural pruning removal of dendrites and axon branches from some neurons Medulla oblongata controls autonomic activities e.g. swallowing, digestions, vomiting, breathing, heart rate Cerebellum coordinates unconsc...

general senses Answer temperature, pain, touch, stretch, and pressure special senses Answer vision, hearing, taste, smell, equilibrium Chemoreceptors Answer respond to chemicals Pain receptors (nociceptors) Answer respond to tissue damage thermo receptors Answer temperature mechanoreceptor Answer a sensory receptor that responds to mechanical stimulation (pressure, vibration, or movement) Photoreceptors Answer light sensory adaptation Answer diminished sensitivity as a conse...

Ophthalmology - Review Questions With Correct Answers What systemic disease can cause dacroadentitis? - Correct Ans-Sarcoidosis What is the hallmark PE finding associated with orbital cellulitis? TEST QUESTION - Correct Ans-Reduced Visual Acuity What layer of the cornea, keeps the cornea dehydrated? - Correct Ans-The endothelium What topical steroid is known to potentially cause cataracts? - Correct Ans-Lotoprednol What are the functions of the ciliary body? - Correct Ans-Produce aqueou...

Which of the following is most related to the conjunctiva? a. Is the mucous membrane that forms the inner lining of the eyelids b. Is the vascular layer of the eyeball; it supplies the retina with blood c. Is composed of circular and radial muscles d. Forms the cornea, the window of the eye ANS: A 80. On its way to the retina light does not pass through this structure. a. Pupil b. Vitreous humor c. Choroid d. Cornea ANS: C 81. Which of the following is not true of the lens? a. Chang...

CNS USA Exam 3 Questions & Answers 2024/2025 What are the 3 layers of the human eye? - ANSWERSSclera, Choroid, and Retina From the inside out, how does the structures of the eye lie? - ANSWERSOuter sclera, transparent cornea Anterior chamber (Aqueous humor) Iris Pupil Lens Posterior chamber (Vitreous humor) Retina What type of photoreceptors does the retina contain? - ANSWERSRods and Cones Which photoreceptors function is vision in low lighting? - ANSWERSRods Which photore...

ODP: Spectacle Final Exam Questions and Answers Already Passed What is the primary function of the cornea in the eye? The cornea helps to focus light onto the retina. What is the role of the lens in vision? The lens adjusts its shape to help focus light on the retina for clear vision. What is myopia, and how is it corrected? Myopia, or nearsightedness, occurs when distant objects appear blurry. It is corrected with concave lenses. What is hyperopia, and what type of lens is ...

Layer 1 of the Retina Correct Answer-Photoreceptors: tranduce light waves into neural impulse (rods and cones) Layer 2 of the Retina Correct Answer-Bipolar cells: Rods & cones have synaptic connections with bipolar cells Layer 3 of the Retina Correct Answer-Ganglion cells: Axons of ganglion cells fro m optic nerve What are the three types of learning? Correct Answer-Classical Conditioning (Associating stimuli with each other) Operant Condtitioning (Associating responses with conseque...

Ultimate AP Biology Exam Review Questions with Verified Answers Compare and contrast transpiration and translocation. What is the difference between xylem and phloem? Tranpspiration is the loss of water vapor from the surgace of a plant through the stomata. Translocation is the channeling of the sugar through the phloem. Define hypoosmotic, hyperosmotic, and isomotic 1. Has a lower concentration of solutes than its surrounding enviorment 2. Has a higher concentration of solutes than i...

Neuroscience EXAM 3– USA (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: Where does the light enter through? Answer: lens Q: Once light enters through the lens it goes to the what? Answer: retina Q: What is the central fixation for each eye w the highest visual acuity? Answer: fovea Q: This surrounds the fovea and also has a relatively high visual acuity? Answer: macula Q: This area is formed by axons le...