page_title: Respiratory system of the horse
hierarchical_section_title: Respiratory system of the horse
caption_attribution_description: Nose of a horse, showing a marking called a "snip."
context_page_description: The respiratory system of the horse is the biological system by which a horse circulates air for the purpose of gaseous exchange.
context_section_description: The respiratory system of the horse is the biological system by which a horse circulates air for the purpose of gaseous exchange.
caption: The nostrils of a horse
exif: {"Image ImageDescription": "OLYMPUS DIGITAL CAMERA", "Image Make": "OLYMPUS CORPORATION", "Image Model": "C765UZ", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "QuickTime 6.3", "Image DateTime": "2006:10:03 18:55:49", "Image HostComputer": "Mac OS X 10.2.8", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "296", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1738", "Thumbnail JPEGInterchangeFormatLength": "6305", "Thumbnail YCbCrPositioning": "Centered", "EXIF ExposureTime": "1/250", "EXIF FNumber": "4", "EXIF ExposureProgram": "Program Creative", "EXIF ISOSpeedRatings": "64", "EXIF ExifVersion": "0210", "EXIF DateTimeOriginal": "2006:06:23 18:37:35", "EXIF DateTimeDigitized": "2006:06:23 18:37:35", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "2", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "17/5", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "83/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2288", "EXIF ExifImageLength": "1712", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed"}