City Pedia Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Auditory system - Wikipedia

    en.wikipedia.org/wiki/Auditory_system

    Auditory system. Anatomical terminology. [ edit on Wikidata] How sounds make their way from the source to the brain. The auditory system is the sensory system for the sense of hearing. It includes both the sensory organs (the ears) and the auditory parts of the sensory system. [ 1]

  3. Acoustic reflex - Wikipedia

    en.wikipedia.org/wiki/Acoustic_reflex

    The acoustic reflex (also known as the stapedius reflex, [1] stapedial reflex, [2] auditory reflex, [3] middle-ear-muscle reflex (MEM reflex, MEMR), [4] attenuation reflex, [5] cochleostapedial reflex [6] or intra-aural reflex [6]) is an involuntary muscle contraction that occurs in the middle ear in response to loud sound stimuli or when the person starts to vocalize.

  4. Hearing - Wikipedia

    en.wikipedia.org/wiki/Hearing

    Hearing. Video showing how sounds make their way from the source to the brain. Hearing, or auditory perception, is the ability to perceive sounds through an organ, such as an ear, by detecting vibrations as periodic changes in the pressure of a surrounding medium. [ 1] The academic field concerned with hearing is auditory science .

  5. Photoreceptor cell - Wikipedia

    en.wikipedia.org/wiki/Photoreceptor_cell

    A photoreceptor cell is a specialized type of neuroepithelial cell found in the retina that is capable of visual phototransduction. The great biological importance of photoreceptors is that they convert light (visible electromagnetic radiation) into signals that can stimulate biological processes. To be more specific, photoreceptor proteins in ...

  6. Human eye - Wikipedia

    en.wikipedia.org/wiki/Human_eye

    The human eye is a sensory organ in the visual system that reacts to visible light allowing eyesight. Other functions include maintaining the circadian rhythm, and keeping balance . Arizona Eye Model. "A" is accommodation in diopters. The eye can be considered as a living optical device. It is approximately spherical in shape, with its outer ...

  7. Sound localization in owls - Wikipedia

    en.wikipedia.org/wiki/Sound_localization_in_owls

    The center of the ear opening, squamosum, stapes, eye lens, nose, and premaxilla were all tracked in the study. The cervical vertebra (C1) and the pituitary gland were used to define the anatomical coordinate system. Measurements of the ear-opening, surface area of the ear, and eccentricity were derived using various equations.

  8. Ocular immune system - Wikipedia

    en.wikipedia.org/wiki/Ocular_immune_system

    The ocular immune system protects the eye from infection and regulates healing processes following injuries. The interior of the eye lacks lymph vessels but is highly vascularized, and many immune cells reside in the uvea, including mostly macrophages, dendritic cells, and mast cells. [ 1] These cells fight off intraocular infections, and ...

  9. Visual system - Wikipedia

    en.wikipedia.org/wiki/Visual_system

    Visual system. The visual system includes the eyes, the connecting pathways through to the visual cortex and other parts of the brain (human system shown). The eye is the sensory organ of the visual system. The iris, pupil, and sclera are visible. Identifiers.